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Home My WebLink AboutFACILITY PLAN & IUA AECOM Facility Plan - Sanitary Gatewell Repairs City of Waterloo, Iowa AECOM #60549334 Prepared For. City of Waterloo 715 Mulberry Street Waterloo, Iowa 50703 Prepared By: AECOM 501 Sycamore Street, Suite 222 P.O. Box 1497 Waterloo, Iowa 50704-1497 February 2018 awn Immo am. IMP limmo •mm. %ow ammo •.4 ow. lom CERTIFICATION SANITARY GATEWELL REPAIRS CITY OF WATERLOO, IOWA February 2018 m��""" "" "'g111 I hereby certify that this engineering document was prepared by me or •`` � ofESS/0N,9'''- under my direct personal supervision and that I am a duly licensed Q •• • • e - Professional Engineer under the laws of the state of Iowa. tij 1- r coHARMANJIT F MALLHI • Z ' 20806 n, - C � "`f\-' February 20, 2018 _ = HARMANJIT MAL`LI, PE Date !pruy`A,� ,r,°.��` License No. 20806 My license renewal date is December 31, 2018. Pages or sheets covered by this seal: ALL Date Issued: s CERTIFICATION SANITARY GATEWELL REPAIRS CITY OF WATERLOO, IOWA February 2018 , I hereby certify that this engineering document was prepared by me or i�,`. SStO '``''', `� 40 N ,j under my direct personal supervision and that I am a duly licensed •' { '- Professional Engineer under the laws of the state of Iowa. S HARMANJIT 4") MALIHI Z tt v 20806 • m February 20, 2018 `" HARMANJIT MAL`LI, PE Date !•e'a..a....•e•��Y�`d4 10 w ,,<<� License No. 20806 *itionaainf"1141114`Gltlttj My license renewal date is December 31, 2018. Pages or sheets covered by this seal: ALL Date Issued: ••••• um* • •••••• ••••• Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa TABLE OF CONTENTS Page EXECUTIVE SUMMARY 1 INTRODUCTION 2 Purpose 2 Scope 2 EXISTING CONDITIONS AND PROJECTS 3 Planning Period 3 Population 3 Existing Conditions 3 ALTERNATIVES AND DESIGN CRITERIA 4 Alternatives 4 Design Criteria 4 ENVIRONMENTAL ASSESSMENT AND PERMITTING 11 COST EVALUATION 12 ECONOMIC CONDITIONS AND FINANCING 13 RECOMMENDATIONS 13 IMPLEMENTATION SCHEDULE 13 LIST OF FIGURES Figure 1 - City of Waterloo Population Trends 3 LIST OF TABLES Table 1 - Gatewell Sizing and Location Information 4 LIST OF APPENDICES Appendix 1 -Overall Location Map, Typical Gatewell Repair Schematic Appendix 2 -Gatewell and Valve Well Locations Appendix 3 -Gatewell and Valve Well Pictures Appendix 4 - Improvements Between 6th Street and 11th Street Appendix 5 - SWIF Information ,,,,, 60504645/400/401/SRF/FacilityPlan/HMR1facpin-051816-CIPPPhlllfacplan.doc May 2016 .r %Mr Facility Plan Sanitary Gatewell Repairs C ty of Waterloo, Iowa EXECUTIVE SUMMARY The city of Waterloo is the sixth largest city in Iowa and is located on the Cedar River in northeastern Iowa. The City is protected from flooding by the Cedar River via a system of levees and walls that are approximately 20 miles long. In locations where a sanitary sewer crosses the levee or wall system, a gatewell or valve well is located on the sewer such that the gate or valve can be closed if there is a failure in the sanitary pipe on the wet side of the line of protection (levee or wall). In a recent inspection, the Army Corps of Engineers (ACOE) found that a majority of these gates and valves were nonfunctional. The purpose of the project is to repair these crossings such that the sanitary lines can be blocked in case of pipe failure during a flood. The purpose and scope of the project is as follows: 1. Repair the concrete tops and hatches and install new gates in 25 gatewell locations. 2. Install new valve wells to replace existing valve wells in 2 locations. Replace a valve well with a gatewell in one location. _ 3. Install 1,246 LF of 8-inch sewer and 147 LF of 12-inch sewer in the areas between West 6th Street and West 11th Street to consolidate the sanitary sewer and install two new gatewells. 4. Check for operability of three gatewells and repair, if needed. Since the repairs are required by the ACOE, no other alternatives were considered viable. The cost for making these improvements is approximately $3.11 million. An environmental review of areas where excavation will take place to consolidate crossings or where new valve wells are to be installed will be required. Permits from the ACOE and the IDNR Flood Plain sections will be obtained where the levee/wall system will be disturbed. The project is anticipated to begin construction in summer of 2018, with anticipated completion in the fall of 2019. 60549334/400/404/facpin-022118-Gateweus doc -1- February 2018 .. L .. y.. IMO L 1 4.0 Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa INTRODUCTION PURPOSE The city of Waterloo operates a wastewater collection system that is comprised of approximately 400 miles of sanitary sewers; 9,300 sanitary manholes; 46,240 LF of force mains; and 26 lift stations. The flows collected are treated at the City's Water Pollution Control Facility under National Pollutant Discharge Elimination System (NPDES) Permit No. 0790001. The collection system and the treatment plant are operated by the City's Waste Management Services Department. The Cedar River runs through the City, dividing the City into East and West halves. There is a system of levees and walls on both sides of the river to protect the City against flooding. The wastewater treatment plant is located in the southeastern portion of the City and is completely encapsulated by the levee system. The levee system was installed in the 1960s by the Army Corps of Engineers. There are approximately 20 miles of levees and walls protecting the City. In locations where a sanitary sewer crosses the levee system, a gatewell or valve well is located on the sewer such that the gate or valve can be closed if there is a failure in the pipe on the wet side of the line of protection. As part of the Flood Control and Coastal Emergencies, Rehabilitation and Inspection Program, the ACOE inspects the levee system and provides a description of deficiencies that need to be rectified for the City to stay in compliance with the program. During the inspections conducted in 2016, the ACOE indicated that the sanitary gatewells and valve wells present along the levee system had gates and valves that were nonfunctional. In order for the levee to stay in compliance with the program, the City must repair these gatewells and valve wells. In order to keep the levees under compliance while the improvements take place, the City has entered into the System Wide Improvement Framework (SWIF) with the ACOE. Details of the SWIF can be found in Appendix 5. In a majority of the cases, the gatewells and valve wells are known to be nonfunctional. The purpose of this project is to replace gates and valves with new functional equipment and, in one case, consolidate the sewer system to reduce the number of sanitary sewer levee crossings and install a new gatewell at the crossing. In three instances, the gatewells were installed in the recent past; in these cases, the gatewells will be checked for operability and repaired, if needed. SCOPE The scope of the project is as follows: 1. Repair the concrete tops and hatches and install new Fiber Reinforced Plastic (FRP) gates in 25 gatewells (Figure 2, Appendix 1 shows details of this typical repair). 2. Install new valve wells to replace existing valve wells in two locations. Replace one valve well with a gatewell in one location. 3. Install 1,246 LF of 8-inch sewer and 147 LF of 12-inch sewer in the areas between West 6th Street and West 11th Street to consolidate the sewer and install two new gatewells. 4. Check for operability of three gatewells and repair, if needed. ,_ 6054Q334/400/404/facpin-022118-Gafewel/s.doc -2- February 2018 r NNW 1,400. r.n 11.0 rem �... it Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa EXISTING CONDITIONS AND PROJECTIONS PLANNING PERIOD Since wastewater equipment projects are typically intended to have a 20-year design life, the planning period for the improvements will be 20 years, for a design year of 2038. POPULATION The population of the City of Waterloo has grown from 4,337 in 1870 to 68,364 in 2014. Figure 1 below shows the population trends for the City of Waterloo. CITY OF WATERLOO - POPULATIO►N TREND 90,E 80,000 70,000 z 60,000 0 507003 40,000 0 0- 30,003 20,000 :a 10,000 0 _. 1860 1880 1900 1920 1940 1960 1980 2000 2020 YEAR Figure 1:City of Waterloo Population Trends As can be seen from the figure above, the population of Waterloo has either decreased or stayed stable since 1980. Given the population trends and the level of development in the service areas, future flows are not anticipated to rise significantly when compared with current flows. No change in flows is anticipated as part of this project. EXISTING CONDITIONS As mentioned previously, a majority of the existing gates and valves are nonfunctional. Where the gatewells are newer, they will be checked for operability and repaired as needed. Table 1 lists the various valve wells and gatewells and details the proposed repairs. 6O549334/4OO/4Q4/facpIn-O22118-Gareweus.doc -3- February 2018 *NI y % . Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa ALTERNATIVES AND DESIGN CRITERIA ALTERNATIVES The repair of the gatewells and valve wells is required for the levee system to stay in compliance. The terms of the SWIF (see Appendix 5) require the City to repair these crossings. Repairing of the infrastructure via replacement of equipment is therefore the sole alternative for this project. Figure 2 in Appendix 1 shows the typical manner in which a gatewell will be repaired. DESIGN CRITERIA Figure 1 in the appendix shows the locations where the sanitary sewer crosses the line of protection and a gatewell or valve well is present. The figure references the stages that the ACOE used during the original construction of the levee system. Each location is named based on the stage it is located in. In general, where gates are to be replaced, they will be replaced with FRP gates; the existing gates are cast iron gates. The City has had success with FRP gates on their storm water gatewells and are familiar with the operation of the gatewells. Furthermore, having similar gatewells as the storm system will provide uniformity and lead to ease of operation. Table 1 below details the specifics of each location in a tabular format. TABLE 1: GATEWELL SIZING AND LOCATION INFORMATION .�` y Depth of New Gate Gatewell/P! k _ 3atewell or Size �- S. No. Narn ,. . �_ ., Valve(ft) (in sq) Stage 5A Crossings 1 5A-1 Broadway Street 12 24.11 NA �A= � Oakland Avenue/Riverside Drive 8 14.91 12 .- 3 5A-3 Avon Avenue 6 16.9 12 4 5A-4 WCF&N Drive 12 24 Stage 5C Crossings 5 5C-1 Conger and Lindale Avenues 10 21.11 12 Stage 1 Crossings 6 1-1 Ansborough Avenue North 36 27 18 .. NA 7 1-2 Falls Avenue North 36 29.56 48 8 1-3 On Force Main NA NA NA Y Stage 3A Crossings 9 3A-1 Ansborough Avenue South 36 28.41 NA 10 3A-2 Falls Avenue South 36 30.18 48 60549334/400/404/facpin-022118-Gatewells.doc -4- February 2018 1w1 ,•••. li �7 111mEr r� %Me vow 4W Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa a i tit k S. No. 3f_� :` f _,: y rti iki, t - _ .. Stage 3E Crossings , ,� Mi ., 11 3E-1 7th Street West 8 19 NA — 12,x.. ,.3E-2 8th Street West: t.., , ..: ..' 6, `1 J.` : ,:NA .- 13 3E-3 6th Street West 48 27.54 60 _. .114 3E-4 Between 9th and 10th Streets Wes, ee 1 e 6 121.8 NA 15 3E-5 Between 9th and 10th Streets West, East Line 8 21.8 NA 16 3E-6 Between 10th and 11th Streets West . . :,. . -„-.,,, -6 w -21.8-" :NA — 17 3E-7 11th Street West 12 20.3 24 Stage 5F Crossings 18 - 5F-1 SW He'vad2 _ - - , ',36 23.96 j '48---.,,,= 19 5F-2 SW Between Vinton and Nevada 54 29.55 66 `20: . 5F-3 SW of East 10th Street 6 _ 27.25 42 21 5F-4 SW of East 9th Street 18 24.7 24 22 5F-5 SW of East 7th Street 48 IJNWVN:' 60 -- 23 5F-6 Between Durham and Nevada 8 24.7 NA 24 5F-7 .-- - Z-Between Elm and 11th 54 3,_ ;;;;. ,..66`. Stage 3D Crossings 25 3D-1 Vinton Street 8 14 NA — _ 8 ,..- 3D-2 Between Hawthorne Avenue and Mitchell Avenue 60 25.55 27 3D-3 East of Paper Mill Street 48 26.37 60 °'28 - 30-4 _n __-,-- 18th Street West 48 26.79 60 - - 29 3D-5 13th Street West 36 25.32 48 Stage 5D Crossings 30 5D-1 Satellite Interceptor Crossing (East Side) 36 28.71 48 31 5D-2 SW of intersection of Lafayette and Fay Street 42 29.91 54 32 5D-3 SW of intersection of California Street and RR Tracks 21 30.39 30 Stage 3C Crossings 33 3C-1 Influent to Easton Plant 60 30.61 72 34 3C-2 Influent to Satellite Plant 36 35.84 48 35 3C-3 Plant Effluent to River 60 25.57 72 36 3C-4 -, - Influent From SW Side of Plant 42 27.13 54 37 3C-5 Influent From West Side of Plant 24 23.94 36 60549334/400/404/facpin-022118-Gatewells.doc -5- February 2018 s Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa The following discussion details the improvements that will be made at each location. The proposed gate sizing is preliminary; actual sizing, along with seating and unseating heads, will be determined during design. 1. Stage 5A a. Gatewell 5A-1: This gatewell is located at the intersection of Broadway Street and the levee in the north portion of town on the east side of Broadway Street on a 12-inch sanitary sewer. See Drawing 12 for the location of the gatewell. See Appendix 3 for pictures. This gatewell was installed recently (2014) and contains an FRP gate. The contractor would be required to exercise the gate and check for operability. If the gate is functional, no changes will be made to this gatewell, any improvements to be made will be determined in the field after the operability check. Drawing 12 in Appendix 2 also shows another line crossing the levee west of Broadway Street. No development planned north of the levee in this area; therefore, if this line exists as shown, it will be plugged under the levee and a new manhole will be installed on the dry side of the levee. b. Gatewell 5A-2: This gatewell is located west of the intersection of Oakland Avenue and Longfellow Avenue on an 8-inch sanitary sewer. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 12-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 11 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. c. Gatewell 5A-3: This gatewell is located west of the Waterloo Bucks Baseball Fields (south of the levee and the intersection of Avon Avenue and Conger Street) on a 6-inch sanitary line. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 12-in FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 11 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. d. Gatewell 5A-4: This gatewell is located at the intersection of the levee and WCF&N Drive on a 12-inch sanitary line. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 24- inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 12 in Appendix 2 for the location of _ the gatewell, and Appendix 3 for pictures. 2. Stage 5C -- a. Valve Well 5C-1: This valve well is located west of the western end of Lindale Avenue. See Drawing 11 for the location of the valve well. See Appendix 3 for pictures. This valve well contains a valve on a 10-inch sanitary line. The current valve is inoperable. The existing valve well will be abandoned and the 10-inch sanitary line will be routed through a new gatewell in the same location with a standard FRP slide gate. The new gatewell will be 60 inches in diameter and have a 12-inch gate. See Drawing 11 in Appendix 2 for the location of the valve well. MOM 3. Stage 1 a. Gatewell 1-1: This gatewell is located on the levee north of Black Hawk Creek and just east of Ansborough Avenue on a 36-inch sanitary sewer. See Drawing 14 for the location of the gatewell. See Appendix 3 for pictures. This gatewell was installed recently (2004) and contains an FRP gate. The contractor would be required to exercise .,r 6 0 5 4 9 3 34/4 0 0/4 04/facpin-022118-Gatewells.doc -6- February 2018 Nam Immo Nam ... vemia Vow. Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa the gate and check for operability. Repairs will only be made if there are concerns with operability. See Drawing 14 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. b. Gatewell 1-2: This gatewell is located on the levee north of Black Hawk Creek and just west of Falls Avenue on a 36-inch sanitary sewer. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 48-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 13 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. _ c. Structure 1-3: Structure 1-3 is on a 12-inch force main that runs from the Cattle Congress Lift Station to the collection system on the west side of the river. The force main is supported by the Conger Street bridge as it goes across. This structure contains a 12-inch Tee. The structure is a precast manhole; the top most section of the manhole appears to be in disrepair and the casting has disconnected from the section. A new top section and casting will be installed as part of the project. See Drawing 11 in Appendix 2 for the location of the structure, and Appendix 3 for pictures. 4. Stage 3A a. Valve well 3A-1: This gatewell is located on the levee south of Black Hawk Creek and just east of Ansborough Avenue on a 36-inch sanitary sewer. See Drawing 14 for the location of the gatewell. See Appendix 3 for pictures. This gatewell was installed recently (2004) and contains an FRP gate. The contractor would be required to exercise the gate and check for operability. Repairs will only be made if there are concerns with operability. See Drawing 14 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. b. Gatewell 3A-2: This gatewell is located on the levee south of Black Hawk Creek and just west of Falls Avenue on a 36-inch sanitary sewer. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 48-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 13 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. 5. Stage 3E a. Valve Wells 3E-1,2,4,5 and 6: These valve wells are located between West 6th Street and West 11th Street on multiple small diameter pipes that cross the levee and discharge into the west side interceptor that runs south along the levee to the wastewater treatment plant. This project will consolidate these lines into one line and install new gatewells on the consolidated line both on the dry and wet sides of the levee. A plan indicating the proposed piping and gatewells can be found in Appendix 4. See Appendix 3 for pictures of some of these valve wells. As can be seen in the figure in Appendix 4, a new 8-inch line will consolidate 3E-1, 3E-2 and 3E-4 from the west into a new gatewell just west of — West 10th Street. Another 8-inch line will run from 3E-6 southwest to discharge into the same gatewell. A new 12-inch line will then carry this flow from this gatewell to the west side interceptor running on the wet side of the levee. Another new gatewell will be located at this location as well. b. Gatewell 3E-3: This gatewell is on the west levee at 6th Street on a 48-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 60-inch FRP gate. A new 60549334/400/404/facpin-022118-Gatewells.doc -7- February 2018 %ma *moo Wm& •••• AVM %11•I•1 VFW/ %W. %MO Um/ ••••• .1•Por Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 10 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. _ c. Gatewell 3E-7: This gatewell is on the west levee at 11th Street on a 12-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 24-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part -- of the improvements. See Drawing 10 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. 6. Stage 5F a. Gatewell 5F-1: This gatewell is located on the east levee southwest of Nevada Street on a 36-inch sanitary sewer. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 48- inch FRP gate. Since this gatewell is contiguous with a storm gatewell, a structural evaluation will be completed to determine how best to replace the hatch and gate. See Drawing 8 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. b. Gatewell 5F-2: This gatewell is located on the east levee, southwest between Vinton and Nevada Streets on the 54-inch east side interceptor. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 66-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 8 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. c. Gatewell 5F-3: This gatewell is located on the east levee, southwest of East 10th Street on a 30-inch sanitary line. The gate, stem, stem guides, pedestal and actuator for this -- gatewell will be replaced with new equipment and hardware. The new gate will be a 42- inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 10 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. d. Gatewell 5F-4: This gatewell is located on the east levee, southwest of East 9th Street on an 18-inch sanitary line. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 24- inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 10 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. e. Gatewell 5F-5: This gate is located in an abandoned lift station on 7th Street on the 48- inch east side interceptor. Appendix 3 shows a picture of the exterior of the lift station. AECOM will work with the ACOE and the IDNR to determine how best to reestablish a gate for isolation at this location. Potential options include installation of a new gate in the existing station or installing a new gatewell at the line of protection. f. Valve Well 5F-6: This valve well is located on the east levee, southwest between Durham and Nevada Streets on an 8-inch sanitary line. The City will determine if this line is still active. A new 60-inch manhole with a new valve will be installed at this location if it is determined that this line is still active. See Drawing 8 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. 60549334/400/404/facpin-022118-Gatewells.doc -8- February 2018 ••••• •aw a, *M. %•••• Wr At Sao •••t Facility Plan Sanitary Gatewell Repairs C,ty of Waterloo, Iowa g. Gatewell 5F-7: This gatewell is located on the east floodwall, southwest between Elm and 11th Streets on the 54-inch east side interceptor. The gate, stern, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 66-inch FRP gate. A new hatch wi I be installed as part of the improvements. It may not be possible to remove the concrete top off completely as the gatewell is integral to the floodwall. AECOM will work with ACOE and IDNR to determine the best way to perform these repairs. See Drawing 9 in Appendix 2 for the location of the gatewell,and Appendix 3 for pictures. 7. Stage 3D a. Valve Well 3D-1: This valve is located in Vinton Street at the intersection of the levee and Vinton Street. A new 60-inch manhole with a valve inside will replace this valve. See Drawing 6 in Appendix 2 for the location of the valve, and Appendix 3 for the pictures. b. Gatewell 3D-2: This gatewell is located on the west levee between Hawthorne Avenue and Mitchell Avenue on a 60-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 72-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 6 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. c. Gatewell 3D-3: This gatewell is located on the west levee east of Paper Mill Street on a 48-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 60- - inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 8 for the location of the gatewell, and Appendix 3 for pictures. d. Gatewell 3D-4: This gatewell is located on the west floodwall at 18th Street on a 48-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 60-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. If it is not possible to install a new concrete top, the hatch opening will be widened to pour a new hatch, and a new pedestal will replace the existing pedestal. See Drawing 8 for the location of the gatewell, and Appendix 3 for pictures. e. Gatewell 3D-5: This gatewell is located on the west levee east of West 13th Street on a 36-inch sanitary pipe. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 48- inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 9 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. 8. Stage 5D a. Gatewell 5D-1: This gatewell is located south of Zuma Street on the east levee. The sanitary line flowing through this gatewell carries the industrial flows for the City through a 36-inch sanitary line. This wastewater is typically very corrosive; the gatewell was not opened during inspections. During the construction, the gatewell will be evaluated to check for degree of corrosion. An action plan will be developed to ensure that the gate associated with the line is made functional. This may include replacing the existing gatewell with a new gatewell at the same location (if the concrete is corroded) or 6 05 4 9 3 34/4 0 0/4 0 4/facpin-022118-Gatewells.doc -9- February 2018 r.. Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa replacing the top, gate, pedestal and hatch similar to other repairs. See Drawing 7 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. b. Gatewell 5D-2: This gatewell is located just west of Gatewell 5D-1. The sanitary line flowing through this gatewell carries the domestic waste from the east side of the river across the river to the west. The sanitary line is a 42-inch line. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 54-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 7 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. c. Gatewell 5D-3: This gatewell is located west of Gatewell 5D-2. The sanitary line flowing -' through this gatewell is a 21-inch sanitary line. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 30-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 7 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. 9. Stage 3C a. Gatewell 3C-1: This gatewell is located on the influent pipe of the domestic wastewater coming into the plant; this line is 60 inches. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 72-inch FRP gate. Since this gatewell is contiguous with another gatewell, a structural evaluation will be completed to determine how best to replace the hatch and gate. See Drawing 5 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. b. Gatewell 3C-2: This gatewell is located on the influent pipe of the industrial wastewater coming into the plant; this line is 36 inches. This wastewater is typically very corrosive; the gatewell was not opened during inspections. During the construction, the gatewell will be evaluated to check for degree of corrosion. An action plan will be developed to ensure that the gate associated with the line is made functional. This may include replacing the existing gatewell with a new gatewell at the same location (if the concrete is corroded) or replacing the top, gate, pedestal and hatch similar to other repairs. See Drawing 5 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. c. Gatewell 3C-3: This gatewell is located on the discharge line of treated wastewater from the plant. This line is 60 inches. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 72-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 5 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. d. Gatewell 3C-4: This gatewell is located on the southwesterly influent line into the treatment plant; this line is 42 inches. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 54-inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be installed as part of the improvements. See Drawing 5 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. e. Gatewell 3C-5: This gatewell is located on the westerly influent line into the treatment plant; this line is 24 inches. The gate, stem, stem guides, pedestal and actuator for this gatewell will be replaced with new equipment and hardware. The new gate will be a 36- -- inch FRP gate. A new concrete top with a new aluminum hatch and guardrail will also be .... 60549334/400/404/facpin-022118-Gatewells.doc -10- February 2018 "NOM %Mo. IMO* %MN •••• 7••• ••••• ftetwo •eti rm. 44.1•1 Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa installed as part of the improvements. See Drawing 5 in Appendix 2 for the location of the gatewell, and Appendix 3 for pictures. In addition to these lines on the levee protecting the wastewater treatment plant, there is an old (not currently in operation) sludge line that is now defunct and leaves the plant through the northeastern portion of the levee. During construction, this line will be located (if present) and plugged if found. Significant bypass pumping may be required during the installation of the gatewells. Details for bypass pumping will be incorporated during the design phase of the project. ENVIRONMENTAL ASSESSMENT AND PERMITTING The project will require coordination with various regulatory agencies during design and construction. Given that the project will involve alterations and work to an existing USACE levee, a Corps Section 408 review and approval will be required prior to construction. Along with the Section 408 review, a "— Section 404 review will also be needed if wetlands are present. The Iowa DNR will also likely need to be contacted and coordinated with during the design phase. However, given that the majority of the work will be on the dry side of the levee and underground, an Iowa DNR Flood Plain Permit will likely not be required and a local Flood Plain Permit will suffice. Iowa DNR Sovereign Lands section will also need to be contacted since the work is along the Cedar River. In addition to these permits, a Wastewater Construction Permit from the IDNR will also be required. A vast majority of this project will not lead any environmental impact. The improvements will be made to the gatewells within the structures. In the following locations, the project may lead to earth being disturbed: 1. On the west side of the levee between West 6th Street and West 11th Street. As mentioned previously, new sewer will be installed in this area and multiple crossings will be consolidated into ` one crossing. Environmental review of this area will likely be required. Permitting for building new gatewells will also be required. 2. At the location of Valve Wells 5F-6, 5C-1 and 3D-1, new 60-inch manholes will be installed and new gates or valves will be installed within these manholes. Excavation for the installation of the manhole will be required. —' 3. At the location of 5F-5 where the sewer runs through an existing abandoned station, it is possible that a new gate within the station will be feasible. If this is not a feasible solution, a new 6x6 gatewell may be required. 4. At the location of 5D-1, a new gatewell may be required to replace the existing gatewell through which the industrial waste flows. The City will likely request an environmental review of the above mentioned areas from the IDNR. —.. 60549334/400/404/facpin-022118-Gatewells.doc -11- February 2018 amo UNE. ••••• Um, \was %MO IMMOI UMW ••••• 'mom Innm, Facility Plan Sanit-Hy Gatewell Repairs C ty of Waterloo, Iowa COST EVALUATION Preliminary opinions of cost for the construction of the project were developed and are presented below. OPINION OF CONSTRUCTION COST SANITARY GATEWELL REPAIRS CITY OF WATERLOO, IOWA PREPARED BY: AECOM GATEWELLNALVE GATE S.NO. NAME SIZE 1 5A-1 NA $ 1,550.0 2 5A-2 12 $ 34,100.0 3 5A-3 12 $ 35,650.0 4 5A-4 24 $ 1,550.0 5 5C-1 VALVE $ 38,750.0 6 1-1 NA $ 1,550.0 7 1-2 48 $ 65,100.0 8 1-3 NA $ 7,750.0 9 3A-1 NA $ 1,550.0 10 3A-2 48 $ 65,100.0 11 3E-3 60 $ 100,750.0 12 3E-7 24 $ 58,900.0 13 3E-1,2,4,5,6 MULTIPLE $ 542,500.0 14 5F-1 48 $ 99,200.0 15 5F-2 66 $ 91,450.0 16 5F-3' 42 $ 71,300.0 17 5F-4 24 $ 55,800.0 18 5F-5 60 $ 93,000.0 19 5F-6 VALVE $ 38,750.0 20 5F-7 66 $ 88,350.0 21 3D-1 VALVE $ 38,750.0 22 3D-2 72 $ 106,950.0 23 3D-3 60 $ 94,550.0 24 3D-4 60 $ 100,750.0 25 3D-5 48 $ 74,400.0 26 5D-1 48 $ 77,500.0 27 5D-2 54 $ 80,600.0 28 5D-3 30 $ 60,450.0 29 3C-1 72 $ 94,550.0 30 3C-2 48 $ 77,500.0 31 3C-3 72 $ 97,650.0 32 3C-4 54 $ 91,450.0 33 3C-5 36 $ 63,550.0 SUBTOTAL $ 2,551;300.0 CONTINGENCY(20%) $ 562,650.0 GRAND TOTAL` $ 3,113,950.0 6 0 54 9 3 3 4/4 0 0/40 4/facpin-022118-Gatewells.doc -12- February 2018 Vane IMMI 1.40 NMI ... .../ ..• -- ... Facility Plan Sanitary Gatewell Repairs City of Waterloo, Iowa ECONOMIC CONDITIONS AND FINANCING According to the US Census Bureau, the median household income for Waterloo, Iowa, is $41,461, with per capita income at$22,628 (2014 dollars). The current sewer system has approximately 70,000 connections. The collection system is funded via use fees established by the City of Waterloo City Council. The current rates for typical non-industrial users are based on water meter readings and were adopted in July 2015. Prior to adopting these rates, $11.1 million were generated in FY 2014. This includes fees paid by Tyson and Twin City Tanneries, the two major industrial loads. The new rates are anticipated to generate approximately $1.5 million in additional funds for the Waste Management Services budget. There are multiple options that may be used for funding the project. These include, but are not limited to, General Obligation (GO) Bonds, Sewer Revenue Bonds, United States Department of Agriculture (USDA), Community Development Block Grant (CDBG), Special Assessments, and the Clean Water State Revolving Fund (CWSRF). The City is in the process of developing an application to apply for the CWSRF loan; this facility plan will be part of that application. The CWSRF is a loan program administered by the Iowa Finance Authority and the Iowa Department of Natural Resources (IDNR). CWSRF loan funds can be used by municipalities and sanitary districts to finance the design and construction of publicly owned wastewater treatment and conveyance improvements. The CWSRF offers low interest loans (currently at 1.75%). The loans are similar to revenue bonding since user charge revenues are normally used to secure the loan. In addition to the interest, the loans have an initiation fee of 1% of the loan agreement amount and a servicing fee of 0.25% of the outstanding loan principle. Each loan must be secured by a Bond to assure parity with other local debt. This Bond can be either a Revenue Bond or GO Bond. For revenue- secured loans, the coverage requirement is 110% of the amount needed for debt. The improvements will likely be funded in the long term (SRF loan installments) using the Waste Management Services budget. At this time, the city has budgeted approximately $3.5 million for this project, which includes engineering, construction-related engineering services and contingencies. RECOMMENDATIONS Based on the analysis provided here and the requirements of the SWIF, it is recommended that the City proceed with the design and construction of these improvements. IMPLEMENTATION SCHEDULE The project is scheduled to begin in the summer of 2018; and construction is anticipated to be completed by late fall of 2019. ._. 60549334/400/404/facpin-022118-Gatewells.doc -13- February 2018 UMW • NNW NNW IMMO %my ... APPENDIX 1 OVERALL LOCATION MAP TYPICAL GATEWELL REPAIR SCHEMATIC %o. Z co M co Niminiiik O , LI H Z -IO w <Ow- � �U �w ,". �-� �� ?N Q Q Z 2 Z �!� I w o a E a � o P CV A. LLI LL J J�' m a O�� , m cv y�Pre r �r N m O O o w 2 'a w H • t. £9 IIMH yt,c 5P 3Atl NtlJOI ,f �� u r `Q' PGA (, J F yqP F' W ix ,P IL/ * O W in a G • G O J Jo o rt OP • • '46b 3AV W . rs H3H�13�d W 472 LiN. Z F- O J Z�'HII7 Jf102108 w _I Z LL Q U Q o mi LLI 7✓ f 0 J O CC d a o O U c x U g w U CC D U) CC- VYV 9I.:1. 7:8'81,OZ/OZ/Z a 6 IaPoW'u6a•100-0-ZO-QE-JId-VEE6tiS091S3Nf1JId-£0\SIJ-aHO-006\t£E6bS09\d ai!d u6pea Ign uol;e;SOJOIW wad pa}uud 2 < a ••::- 66 - vo REMOVE EXISTING STAND, 66 I LIFT AND STEM AND REPLACE , WITH nisW HARDWARE L.-.. -1 ZS . .. 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C ` w 1—' _ — z Z `-l' N m F.Y. 2018 DRN I�1-INCH VERIFY SCALE IF PLAN SHEET IS REDUCED w o a am o T SANITARY GATEWELL REPAIRS ��0� o CITY OF WATERLOO, IOWA Des 0 0 o m A • GATEWELLS 501 ycaoo,moreStreetwa Sufte222 CHK 0 lv 1-2&3A-2 -1497 T 319.232.6631 F 319.232.0271 + °' WWW.AECOM.COM APP PRELIMINARY DRAWINGS REV DESCRIPTION DEN CHK DATE Irma._ Hater loo, lova ..\pltcfg\1,17_pdf.pltcfg, ...\tables\pen\11x17c Ir.tbl Printed from M1cro5tatlon V81 2/20/2018,8:18an AM Demon F,le P2\60549334\900-CRO-GIS\02-SHEETS\60549334-SHT-30-02-C-004-014.Ogn,Model 14 -' ,„% � .,y, . '` `- ,mot .**1.1 +!R ....1. F , ' ,m ^gS a (7 s a T t 23 u. k Mf j ANSBOROUGH AVE c e )r*, k e € H� :r _k W t*"*".."'' 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O o -,, rn 0 at coo o GATEWELLS 501 Sycamore Street,Suite 222 CHK 0 Waterloo,Iowa 50704-1497 1-1 &3A-1 T 319.232.6531 F 319.232.0271 r, COWW .AECOM.COM APP W PRELIMINARY DRAWINGS REV DESCRIPTION DRN CHK DATE ••=momm• 16'••••••ma Nomammimo 11 .••••• Y i APPENDIX 3 GATEWELL AND VALVE WELL PICTURES f 1 1 1 EMI mot PICTURES OF GATEWELL 5A-1 ..4 / 1 Picturebove shows 1 a the relatively new gate stem and stem guides installed in the gatewell in 2014. y� 7 i V y " ,, 1'4C - s l. 4-is f''',34yAl ' /fit:*�, . 4'. �.� +. ..... m rk,� • s,t t,%,. a IP fin. Zy .: ar 4� V Picture 2 above shows the exterior of the gatewell. 3-1 PICTURES OF GATEWELL 5A-2 w 4. tit jy '# 5 ,. kin i ,_1..= �r � Tyr �f. a£ , s Picture 1 above shows the gatewell from the inside. I g , , 44 n 1 Eitaii ,. :40 { # 'i,.e Y i w _ ^/ ¢ .fir '-"�. ` t, . di,` ` , �'9 i r ,c t> icto Picture 2 above shows the gatewell from the outside. 3-2 PICTURES OF GATEWELL 5A-3 " der ° , i¢ s a 4 _ y'' � yx� '�a � b�'f� r k ,w C d , i"$CIA rd ` it • Picture 1 above shows the gatewell from the inside. c-._Th § 1.- `° � Yam- t. f t„�5+` "it Picture 2 above shows the gatewell from the outside. — 3-3 PICTURES OF GATEWELL 5A-4 "ter .,, 0. fro' 4 R 1 3 , Picture 1 above shows the gatewell from the inside. .t # I [ c ,ry 'gym g �,� . lei t y5 k y Picture 2 above shows the gatewell from the outside. 3-4 PICTURES OF VALVE WELL 5C-1 , — n,.. ' s,: a A,xw z 's b^ $;:il,:s a w.? f — A mar% ` l ', .�j its � , s • • la — t : F �r£ t ' ` , k, .- ,....,,,,,,,,,r.,, ,,,,,,' ......,..,, ,....„...._,,,,, . . ` gym, .„ " ,. .....4.. . ,,,,,........, ,.il.„.,.., ,,,,....4,,,T, ,, , ,:..-,,,,,,,. ,..,, .ro ,,,,,Y,,!i,:ig,,, :,, ..„ ..,„„ _ ,..,,,,,,,,,,,-„,,-4,:„: ,,,,,,,, ,,,,, ..„:„...„-,,,, am t rr,,,,:,,,;.,,,,,,,,,., ., -: ,-,:',..p,,,,,,,,„,,..„,,,,.,:,.. ,,. Picture 1 above shows the valve well from the inside r :; = : v v,. d as s � �g&r ' +uMF' £ - R ,A1 : nrrk p '- wfr t .:qry 5" L uEPo C av CCU ..' N" x 4 ' ti Picture 2 above shows the valve well from the outside. — 3-5 PICTURES OF GATEWELL 1-1 x ... �t '. " .if ..thy' ,:t} <c' ,r,,. Cate m x — ,,ta"8,3t - - rt et ` • Via ` x� ,rx s` $ r 1 above shows the re Picture latively new gate stem and stem guides installed in the gatewell in 2004. ,ii,'-; / :ti e e pp x .:,,t��` y •#IFIII L �n 4 i •�r p, .�1�. �,x � Picture 2 above shows the exterior of the gatewell. - 3-6 PICTURES OF GATEWELL 1-2 0,` ¢; d: F � r3; 411 r r Picture 1 above shows the gatewell from the inside. r m t ��.r-' 5 ., _ h tl �7 t '�'- '�s �k r ag a s .1"'''...-4�°" a ..1; 3 ., Picture 2 above shows the gatewell from the outside. 3-7-- PICTURES OF STRUCTURE 1-3 hh 4 [,e=px b f "� ,,,-',-,1,.,,`,;',, } F emu. , ,,, ,,t,,,, , s ..._ . ,,, -iio', .;„1,,,,,,..-- — i Picture 1 above shows the structure from the inside with the Tee. i°'. ,.. .. ' 04Alf,,,,io. A ' tip. ,-,, ..-- , ...c, Picture 2 above shows the structure from the outside. 3-8 ' '‘'L''':!:1'4';":''°;::::\ PICTURES OF GATEWELL 3A-1 ask --� ;. .ate,��. - '� . ... r.. ' P•icture 1 above shows the relatively new gate stem and stem guides installed in the gatewell in 2004. " f. „# S ys. s Y l•!,".„.,r'9'•4'''''''*‘,..4 -* - " .4 * ' sr. 11,s '*'"d I r"..4*i td Picture 2 above shows the exterior of the gatewell. 3-9 PICTURES OF GATEWELL 3A-2 f ,',' a m N — I* �y ii D1141: 1a - 44 Picture 1 above shows the gatewell from the inside. 5 it„-, , ,'..t. __ "-, . , ' ‘1 Nb an i ,.,.'4 - ,.,-, , ,,,,:, 4;:':'7', . r gyp °wr. ro t� `fiT } 4 na_ Picture 2 above shows the gatewell from the outside. 3-10 SELECT PICTURES OF VALVE WELLS 3E1,2,4,5 and 6 40, Picture 1 above shows valve well 3E-2. 111 14, g.. Picture 1 above shows valve well 3E-6. 3-11 PICTURES OF GATEWELL 3E-3 r; ~s � t ttt P.4..4. 1 i"%i1111^"„�11 r' �• 4 �. S 1{ ti .^ - 1 , III • t (j 4 '�w s�+« +ou * ;r a # Picture 1 above shows the gatewell from the inside. s%�e4,,, , . ,. . ; -1:V-iti ' , , lif , rt#'r ' It..i 3 yyq Picture 2 above shows the gatewell from the outside. 3-12 PICTURES OF GATEWELL 3E-7 7: li'' ,_. d § i »' yg? . M 4N .� 1 .. :-:,.::? Y :.:. ,A, 1. x Y�"r p z s '',1,,,'',',",,,,i'!,4khrlettl' i.-, , g5.. a% l x:. 1 sni 1 r `vim, — '°. Picture 1 above shows the gatewell from the inside. 1 fifj 10100..- , r ( Sz i h., 3 (i r Picture 2 above shows the gatewell from the outside. ...... 3-13 PICTURES OF GATEWELL 5F-1 R � " :.'''""-.-","'"---,.-:";:',:;,,,..7',-;,,,,Jil;t:ktitili,:ii*..:if:,931,-,'.,;::::: , ,..,.,,,,,,;,,t, x 4 {�a. la ,y arM' 'r%wi tl3 A Picture 1 above shows the gatewell from the inside. -.--..,-;r:,:IN ,, ,a��. �.�� of ..� fi `fi f� ,rye;„; I y1: , '�'". ' -`.,t, '- — 7:971s . '''' . I T Cx. Y, xN Tio 0. �:,� „Al, xf x"y r a� �, PiCtb're '' t-''� 'ts � �E'+' $�,1t'�r� f §E« Y •t t t 2 above shows the gatewell from the outside. 3-14 PICTURES OF GATEWELL 5F-2 44,0 Picture 1 above shows the gatewell from the inside. 7 . If; c 174. Picture 2 above shows the gatewell from the outside. 3-15 PICTURES OF GATEWELL 5F-3 .. , ' Yne .40 Picture 1 above shows the gatewell from the inside. I m � i ;, Picture 2 above shows the gatewell from the outside. 3-16 PICTURES OF GATEWELL 5F-4 .r . Z I. t- ' 1 r< ' x�'y . „✓, a -Y aa .•, ''s ` „.. ,i Picture 1 above shows the gatewell from the inside. a . ty � M , � y, .r �`� ma`s `;?�' y P - k'M "fie, '.E $: d !e' f e srya• r ...Y. u ) ..1110b,,,• - ,- i — ti .1 'S 2 :. — Picture 2 above shows the gatewell from the outside. — 3-17 PICTURE OF LIFT STATION 5F-5 1 ' 4;4` ,fir X- A t �''�E k 41164111 Picture'1- above shows from the inside. PICTURE OF VALVE WELL the 5F-6gatewell '44../'*..4:1f:4' .": et � ;, r am • s: . `,,4 e r'� � ,../ w., 3 ' ' Est �' a 4 p{ -''tJ4-, v ri'J' a"` A+ 'g.4-, ?$^i, "� ?, ,,�ti _gam M kr Asti ��T' r 4 P [ jk � J ,lly.° y 4 �. .. *._ "#r. t ., _.r . , # iE, .` 'a ka a6,4a' :i _ Picture 1 above shows the valve well. 3-18 PICTURES OF GATEWELL 5F-7 • Picture 1 above shows the gatewell from the inside. viol se ei! Mir Picture 2 above shows the gatewell from the outside. -- 3-19 PICTURE OF VALVE WELL 3D-1 Ao i " m— - a ,� L Picture 1 above shows the valve location on Vinton St.The valve is marked by the green cross. PICTURES OF GATEWELL 3D-2 Y j al' /11111 li Picture 1 above shows the gatewell from the inside. 3-2o 1 r / y Picture 2 above shows the gatewell from the outside. PICTURES OF GATEWELL 3D-3 +r b h — ,ri Picture 1 above shows the gatewell from the inside. 3-21 /K ' t " ^ ^a.ITT Picture 2 above shows the gatewell from the outside. PICTURES OF GATEWELL 3D-4 z F ,44,11 as $F 3 �,,z„ a m ,➢ ro .gwro,,,,41,z�+.�, ^Y�° gip, s Picture 1 above hows the gatewell from the inside. 3-22 '-‘...''' ..........:4;:i!..1:::,,,k,a::::..' . . - 1: ' - Iiih.. i ,! r ,, s a t sc ;gas ,:,.°,•,i:i-.,•,.: '...',-,,,,,,::::4'•:,1-,'.'•:.'!:,..,,,',',.•!•;-•.',...f,:5•-,...',:;','•-f.:.'„-„,,.',....••••'•'il..'.1...•!•1•:.•':-•,:... ,_• Picture 2 above shows the gatewell from the outside. PICTURES OF GATEWELL 3D-5 r r • -m a r",`: .x"'. .1� �r"y''. ; M .m' • E S Picture 1 above shows the gatewell from the inside. 3-23 • a 4 w � • — Y xy ` n Picture 2 above shows the gatewell from the outside. PICTURE OF GATEWELL 5D-1 wit i. m, f"` • _ f s Y, •ik y 1 r. day ;� -ti* a�'k. :'' _ X M g =`x #e °*� iQ of Ott Z '�� +p"a Y�i"+y`gp 4 �k"G � ri ,�+ p ^t Picture 1 above shows the gatewell from the outside. 3-24 PICTURES OF VALVE WELL 5D-2 LDS . G�, ... "` t t Picture 1 above shows the valve well from the inside. •,.: 4 .may {{ • x_ • ._ ---„-,_ m ''''''•--41;t57,;;.„:-:„3*.,„„;;:•:•'•:.?..1::'•4qi„,•,.'Ir.,.4 „e.!(,,,,,A., •---it;-• : _--..::::,--,:::,,,,,,5,-:-,,:vi';i -',;-."Itio..--',4-:'<-4;:z:•''' -7:<,-. 4',.'..-s"-:---4,*:::7:7!..--17--it.4-„,:i. ' !�� ,. d - • ,� .. .yam, , ',--1,4,..': ,,,: .!,,;''.4'..4,:t1`.4.,,:;720:.;.,t,;:',...". --'• -.. .•..:*: .:----"--- ..7.. ',.,'"1-‘..... 4N4P-01*.7.44-e-iii.- —_ d ,fit ' s e`9�+ 4 -� �{,' v'`4'se' - v = s,�s Picture 2 above shows the valve well from the outside. 3-25 PICTURES OF VALVE WELL 5D-3 f — a 4 ,; ce L E: g fib Fr IsT" 1'. " pt, hrn ' , 9' 'fitK Y: ,a�;, aye"` µ� Mom:. w fi i,,+ ��•' {n it yi*,., .."' ^ ' fit_ Picture 1 above shows the valve well from the inside. 09 '�, .,+�,'. om+/`,. t ..',1.wke k`SN, -r r 3.3 a Picture 2 above shows the valve well from the outside. 3-26 PICTURE OF GATEWELL 3C-1 it 7 - a s Picture 1 above shows the gatewell from the inside. PICTURE OF GATEWELL 3C-3 i Picture 1 above shows the valve well from the inside. 3-27 ' �� : , ' - r 5t,. k , * a 4. t Picture 2 above shows the valve well from the outside. PICTURES OF GATEWELL 3C-4 '— •'` . Picture 1 above shows the valve well from the inside. 3-28 k ,III-' 1111101.* 'n _ Z fir'"} I , .- '`3 #y ..„,,,t,! , - a a„r' r' j , > ,-s �g . iii t,. A� � y a ' � k '' ; "' r-.. Vit ; if a tax ta"x u' r ' 4' Y+r °cam% . '#� — Picture 2 above shows the valve well from the outside. PICTURES OF GATEWELL 3C-5 „1,,,, .;;;;,0, „47.,,,,,,,i0.4r. .,,,,t,rei,;::';:i'.:"::1,' 44. Picture 1 above shows the valve well from the inside. 3-29 • t t u 1 .. — Picture 2 above shows the valve well from the outside. 3-30 APPENDIX 4 IMPROVEMENTS BETWEEN 6TH STREET AND 11T" STREET 1 1 Imo • lam .. ... ham -'11.... r' k . 2 g 3 ,m m m m m£ �' . • 2 2 X X X X • � "° igI (°. 7 3 �� O�S 03 OZO�zOZOZOz w 7TH/ r N..,..\ ST �,,,,,,,t- .r :� �� . .�� 41 Z 3 r�'"" �— Th, aom aoaum aom ao 0oco co w cow I U J 3` F n .„,„: - W W W W W W N N N N N W = ' Z - Cr' -t W W O� N O Ul 9° OWo V I I A _t - 01 m CJl (O(O A N -"1/ / t i I J m* m , m� m 1..14/4:1,4!.41.1 (1) i i i i , � \ �_ 3 ° 0 ` ,; O2 --c- OF Ow Oln5 CD CD ' , cm cm ao c r r lig , -- -„ < 3 = � �,..` � ' m coo 1 CD 2 wwww co.W ww c°Daw �w� - CO - - _ OOOO OO O-+ NN -.+ Y.., y �' O / -SO.,----____en- y , �` •0-'N V A CJ� tD 0 0IV N(O N OU100 00 CO 00 ODAOD , sy =sy ' ' x Si `� Zf/)ZZ V)fn ZfA Zfn In(AZ ' ++... 7 , I cs II ", ( )Z. $ " • ' � W 0D ivx-omm-1 O z z Ozz-n > O m x TH V 8 o00m CO sT z DDZO F 2 N z-��m O jg A '---L N # =-SDK Z O I ,. _ co y `3+ tb co co U) Cl) U) U) U) C N Cl)C '' r 1 ,,,. r. i z .: 2 2 2 2 2 2 2 2 2 2 KMMKKKKKK III0 ` q Ate ., Oo co 0o V rn=°0-P.WONp K O O O O .' I € t , �` r' 3ti` y C C C C C FIT 3. if C. cm m c m m c m '. .` • • - „, `" � ' m co m w m o0 00 0o co CO CO cn r ^`` .>s- tF`' - O CO W Cr..) CO CO CO A W W W N `' '`r o 0 0 o cNo rn o 0 0 0 i au . -' cs4 C� '. I e x iP 5 t a .i ,4 AZ,""£ :" -,,s _ ....... ., ....„ ,,,.,, s„,,,...„ „,„ , ,, , _ s e , ...,,, ,4-„, , --,- -_,-,,,,,,, , -- ... 7„,,,,,,„_,,,„:„:„:,,,,,..„,,: -,,,,-_.::,..„.:,,,, -., „,,. , . ,„:„.„.„..,H sT e „... i, _ . ,,,,,,. _ _ -,k,:, ..„ ,,..,,,, i 0 „,-, . „ , : ,,,- , if ,, , ., ,, _ .,- „,„ , „ ,....„ ,,,„ , , _ ,,„, 0 littzt s a +' -I--------------- _, vm 2 I, rn I �, Cx co .-„,°L f , ..,,,, •-•9 ,:::-'-!,iii-k$,*•%!,,',.:'?:•:•':;',1-:'''"':'2,k'''el-,:'''-',Z,14'--;','' . ' ' ' ' ' '''', ' '.. iii 7- ' Mk-7, _ ,,,,,.,. *, 0 n &`- t Ate , --,-27-41'''"-‹..4,:',Le 0 , i,-- -,,,-7"-'21- — ,' l 23 i ,.' ' ,,,,l',,,,/ .. F/ .c: ''"' - '''-'1 ?I'7,7A-AVIN--''•4--,.-Y4.It-I4,-I 7.,?,----\-7I-#0',:',---z.-,-,,z''-NtIllt",*.T;,-44.4 OTH ST .t r��o J "may 1 N 7o 0-, .. „ _. �... s {, 'V a-,, @ 1 .{1 X z y_ �/i Cam. m. ' ro ° =,,,,° -- —�0 2G� m m CD— , „ A="' a _ /A 111`i :: O �1 n 67 7 3 p�'�� O -k CD !_ rrirri-ri o a m k Ate' APPENDIX 5 SWIF INFORMATION 01.1) NNW `11••• 11.M. "MI 11=1• IMM Imo Imp Mum ,IMMC IMMO . O --' 40t147 11 DEPARTMENT OF THE ARMY . k.;. -4, 2 U.S.ARMY CORPS OF ENGINEERS A °pit;Ir- to WASHINGTON,D.C.20314-1000 P Q STIEES Of APR 1 0 2017 _ CECW-HS — MEMORANDUM FOR Commander, Mississippi Valley Division SUBJECT: System-Wide Improvement Framework (SWIF) Letter of Intent (LOI) for the — Waterloo and Evansdale Levee Systems, Cedar River Basin, Black Hawk County, IA — 1. References: a. Memorandum, CECW-HS, 29 November 2011, subject: Policy for Development -- and Implementation of System-Wide Improvement Frameworks (SWIFs). b. Memorandum, CECW-HS, 21 March 2014, Interim Policy for Determining Eligibility Status of Flood Risk Management Projects for the Rehabilitation Program Pursuant to Public Law (P.L.) 84-99. — c. Memorandum, CEMVD-PD-SP, 21 Feb 2017, subject as above. d. Memorandum, CEMVR-EM, 9 Jan 2017, subject as above. e. Engineering Construction Bulletin, CECW-CE, No. 2016-8, 22 Feb 2016, Interim Risk Reduction Measures (IRRMs) for Levee Safety. 2. This memorandum approves the LOI submitted by the City of Waterloo, Black Hawk County, IA, to develop a SWIF for Waterloo and Evansdale Levee Systems. References 1.a. and 1.b. define the USACE policy for submitting a LOI and the Interim Public Law (P.L.) 84-99 eligibility criteria respectively. References 1.c., 1.d., and 1.e. meet the policy requirements. 3. Temporary rehabilitation eligibility under P.L. 84-99 is granted for a two-year period from the date of this memorandum to provide time for the sponsor to prepare a plan. The temporary rehabilitation eligibility applies to the levee systems identified in reference 1.d., and shown below. Further extension of rehabilitation eligibility beyond the two year SWIF development period will be dependent on approval and implementation of the SWIF. CECW-HS SUBJECT: System-Wide Improvement Framework (SWIF) Letter of Intent (LOI) for the —' Waterloo and Evansdale Levee Systems, Cedar River Basin, Black Hawk County, IA Levee System Name FC System Levee Segment Name FC Segment ID ID Waterloo (NW) 5105920001 Waterloo (NW) 5104500060 Waterloo (SW) 5105920002 Waterloo (SW) 5104500061 Waterloo Treatment Plan 5105920004 Waterloo Treatment Plan 5104500063 _ (South) (South) Waterloo & Evansdale 5105920003 Waterloo (East) 5104500062 (East) Evansdale 5104500064 4. The District Commander is responsible for reviewing the sponsor's progress for development of the SWIF to ensure the SWIF contains all elements required by reference 1.a. and the commitments made in the LOI with particular focus on (1) implementation of IRRM during SWIF development including risk communications with the population at risk, (2) deficiency risk ranking with consideration for reference 1.b. interim eligibility criteria; and (3) development of an IRRM plan as part of the SWIF in accordance with reference 1.e. After the first year, if progress is deemed unsatisfactory, the District Commander will recommend through Mississippi Valley Division (MVD) to the Director of Contingency Operations and Homeland Security either that the levee sponsor is no longer eligible for P.L. 84-99 rehabilitation assistance, or justify why _ continued eligibility is warranted. The Rock Island District Emergency Manager remains responsible for ensuring coordination with the MVD Flood Risk, Levee Safety, and P.L. 84-99 Program Managers, and for ensuring that the levee systems identified in _ paragraph 3. above continue to comply with reference 1.a. 5. The points of contact for this action are Mr. Mike Jordan, P.E. at michael.f.jordan@usace.army.mil (817) 483-8910, and Mr. Willem Helms at willem.ha.helms@usace.army.mil (202) 761-5909. t elqr) ID F. DA E, P.E., PMP, SES Director of Contingency Operations, Homeland Security, and Northwestern Division/Pacific Ocean Division RIT Leader 2 CITY OF WATERLOO IOWA ' CITY HALL • 715 Mulberry Street • Waterloo,IA 50703 (319)291-4301 Fax(319)291-4286 411' %rloo ‘o December 8, 2016 Rodney Delp Chief, Emergency Management Division P.O. Box 2004 Rock Island, IL 61204-2004 RE: City of Waterloo Request for Conditional Extension of P.L.84-99 For Waterloo, IA Dear Mr. Delp: The City of Waterloo, IA hereby requests conditional extension of Public Law(P.L.)84-99, Flood Control &Coastal Emergencies, Rehabilitation and Inspection Program, eligibility while the City of Waterloo, IA develops and implements a system-wide improvement framework(SWIF)for the following systems: Waterloo, IA-LDB Cedar R. (East) Waterloo, IA- RDB Cedar R./ LDB Black Hawk Ck(NW) Waterloo, IA- RDB Cedar R./ Black Hawk Ck (SW) Waterloo, IA-W/W Treatment Plant(South) Evansdale, IA-LDB Cedar R. The attachment outlines actions taken to date and actions planned in the futer to address levee deficiencies identified in the Corps' of Engineers routine inspection, dated October 21 and 22, 2016 for the systems listed above. The attachment further justifies how a system-wide approach will optimize flood risk reduction by correcting deficiencies that are complex to correct. Specifically,the attachment includes the following detailed information: 1) levee system(s) identification; 2) a description of deficiencies with a justification of how the SWIF will improve and optimize overall flood risk reduction; 3) demonstration of funding commitments;4) interim risk -- reduction measures; 5) interagency collaboration; and 6) anticipated permit requirements. The City of Waterloo, IA is committed to restoring the above listed systems to current USACE standards and respectfully requests the Corps of Engineers expedient approval of a conditional extension of P.L. 84-99 for the levee system. Please contact the undersigned with any questions regarding this request or the information included within the attachment. Sincerely, Quentin Hart Mayor, City of Waterloo CITY WEBSITE:www.cityofwaterlooiowa.com WE'RE WORKING FOR YOU! An Equal Opportunity/Affirmative Action Employer SWIF LOI ATTACHMENT WTL, Cedar River Basin, Black Hawk County, Waterloo, Iowa Request for Approval of the System-wide Improvement Framework Letter of Intent(LOI) Prepared by: Jamie Knutson, P.E., Associate Engineer Signed: - f� Date: LL `5�*I/ Mayor, City of Waterloo, Iowa . ,-.. r-et. #e-/Cif/ 1. INTRODUCTION _ The City of Waterloo is requesting approval of the System-wide Improvement Framework (SWIF)Letter of Intent(LOI) for continued rehabilitation eligibility for the following: WTL4 Waterloo, IA -LDB Cedar R. (East) WTL1 Waterloo, IA-RDB Cedar R. /LDB Black Hawk Ck (NW) WTL2 Waterloo, IA -RDB Cedar R. /Black Hawk Ck (SW) WTL3 Waterloo,IA- W/W Treatment Plant(South) EVND Evansdale, IA - LDB Cedar R. under P.L. 84-99 while developing a system-wide improvement framework(SWIF). This attachment describes unacceptable deficiencies in the levee system and/or system-wide issues that will be addressed under the SWIF, and justifies how a system-wide approach will optimize flood risk reduction(i.e.,will correct deficiencies in a manner that provides the largest flood risk reduction in the most efficient and economical manner.) All of the levees listed above are Federal Levees and locally maintained by the City of Waterloo. The"Unacceptable" deficiencies are described below in Paragraph 2,"Description of — Deficiencies and Proposal for Using the SWIF Approach," and have resulted in the levee systems being put on"inactive"status in the USACE P.L. 84-99 Program. As such,the systems listed above are currently ineligible for federal funding for repairs if they are damaged during a — flood event. The City of Waterloo, IA is seeking conditional reinstatement of P.L. 84-99 eligibility by developing and executing a SWIF plan to correct complex deficiencies. Since the most recent routine inspection dated October 21 and 22, 2015,the levee sponsor has made progress toward correcting identified deficiencies, including: Completion of televising all storm and sanitary sewer pipes penetrations within the levee. — Completing two contracts for vegetation removal along Black Hawk Creek. Another contract is under design for more vegetation removal. Started construction on four, storm sewer sluice gate replacements. '— Maps of items for general maintenance, based on the 2015 routine Inspection, have been sent to various City departments for correction by May 1, 2017. General plan information and planning level costs determined for replacing the 43sanitary — gatewells/valvewells that are currently inoperable. Other deficiencies rated"unacceptable" are more complex to correct and involve interagency — collaboration. These deficiencies and/or system-wide issues include improvements to multiple 1 - SWIF LOI ATTACHMENT levee segments, IDNR and USACE review and permitting and the City of Waterloo is seeking to use a SWIF approach to resolve these"unacceptable" items and restore the levee to current USACE operation and maintenance standards. The City of Waterloo is anticipating the replacement of all sanitary sewer sluice gates to take four years. This would include design,permitting and construction. DESCRIPTION OF LEVEE SYSTEM DEFICIENCIES AND PROPOSAL FOR USING SWIF • I. Levee System Identification: l.a. The levee system(or systems) covered by this LOI and included in the SWIF is/are listed in Table 1. NLD Levee System Segment Latest Segment Name and ID Name and Date and ( Number ID Number Inspection Type Rating Sponsor Name LIS Name _.j Waterloo,IA- Waterloo,IA- Routine inspection, U City of Waterloo, IA WTLI RDB Cedar R./ RDB Cedar R./ 21-22 October 2015 LDB Black Hawk LDB Black 1 Ck(NW),NLD Hawk Ck(NW) # 5105920001 NLD# 5104500060 Waterloo,IA- Waterloo,IA- Routine inspection, U City of Waterloo, IA WTL2 RDB Cedar R./ RDB Cedar R./ 21-22 October 2015 Black Hawk Ck Black Hawk Ck (SW),NLD# (SW)NLD# 5105920002 5104500061 Waterloo,IA- Waterloo,IA- Routine inspection, U City of Waterloo,IA WTL4 W/W Treatment W/W Treatment 21-22 October 2015 Plant(South), Plant(South) NLD# NLD# 5105920004 5104500063 Waterloo& Waterloo,IA- Routine inspection, U City of Waterloo, IA WTL3 Evansdale,IA- LDB Cedar R. 21-22 October 2015 LDB Cedar R. (East)NLD# 1 (East),NLD# 5104500062 5105920003 Waterloo& Evansdale,IA- Routine inspection, MA City of Evansdale,IA EVAN Evansdale,IA- LDB Cedar R., 21-22 October 2015 LDB Cedar R., NLD# NLD# 5104500064 5105920003 TABLE 1 --List of Levee Systems and Segments included in this SWIF LOI request. J J2 SWIF LOI ATTACHMENT ": �. kt *..„ y * — Fe ;, �` `;g„ s ::,' eat # s . 1 < ^pis : :-", ,,... :: `' .", ..'r C `�'Y,,� r 3 �- ;i. n J,ak,$ ,,ti a m t r �� ,y as — t_ ' x `. ° `may e,,4s ' f. c* t' ,. w 7i � , '-. moo, rkI '"-•x Yi rce' �a s :r It i ,r. 4' y` Y /'' AA � 44 } � � °�'+�.r' v�yy �'p$'4 afu�' � ."k{�f riY�13',?*�I)i 4 4 if,Ar tt, r. '4. 't 4 , : I,. .: 11 tf,,,ro£ :,„0, , il*., ? ,, „ , *, 1I. .• .. „ , jk 5-,- .. ' .c K �r 7 Overall map of Waterloo levee system. 1.b. WTL1 RDB Cedar River,LDB Black Hawk Creek. Flood risk management works for WTL1 include about 2.3 miles of clay levee along the Cedar River and about 2.6 miles of clay levee along Black Hawk Creek. The upstream tie to high ground along the Cedar River is at Rainbow Drive. The upstream tie along Black Hawk Creek is near Huntington Road and the westerly city limits. The existing levee along Black Hawk Creek was raised and strengthened. Closure structures were installed at Westfield Avenue and Fletcher Avenue. Interior drainage includes a ponding area and numerous pump stations. The Forrester Ave pump station has a 12,500 g.p.m. capacity. At other locations where storm sewers intersect the levee,they were extended through the levee and sluice gates were installed for positive closure. Where sanitary sewers intersect the levee, sluice gates were installed for backflow.prevention. Sandbag closures _ were also constructed at various locations in this unit. Construction was completed on this section in 1982. The City has constructed the following pump stations to reduce interior ponding after the 2008 flood: The Cattle Congress pump station has a 12,600 g.p.m. capacity and is not _, part of the system for PL-84-99 repairs. The Black Hawk Road pump station has a capacity of 2,200 g.p.m. and is not part of the system for P1-84-99 repairs. The pump station at the intersection of Fletcher Avenue and University Avenue has a capacity of 12,000 g.p.m. and is not part of the system for PL 84-99 repairs. The pump station at the intersection of Downing Avenue and Black Hawk Road has a capacity of 2,000 g.p.m. and is not part of the system for PL 84-99 repairs. The pump station at the intersection of Westfield Avenue and Duryea Street has a capacity of 36,000 g.p.m. and is not part of the system for PL 84-99 repairs. The Ansborough 3 SWIF LOI ATTACHMENT Avenue pump Station has a capacity of 33,000 g.p.m. and is not part of the system for PL-84-99 repairs. The Solar/Lunar pump station has a capacity of 1,000 g.p.m.. and is not part of the system for PL-84-99 repairs. „_I The leveed area includes 812acres of land that includes residential, commercial and agriculture infrastructure, including a John Deere foundry and numerous businesses to support John Deere and afire station and several sanitary sewer pump stations. The population at risk(PAR) is _J 2,269. A map of this system is shown below. iL. , � te r* . , , ' . "7;ca csc4,1. E a �-; i.:0 a ,.'r a w.)414." � o- } • ,:.ems v. .,,•. x w .., • <' �. tr ' �'*t WATERLOQ;lA; 'x : 1. s' RDB.CEDAR R/LDB 4 ` tl . , , y ., t 4t.f.-'t _ .-. • . BLACK HAWK CK(NW) `, t k , " N r ;md, -- , '` System-�5105924001 t r, "1 ,Segment 5104500060 t3 < p ITTY w ' 444 v ,,-.�fit-li4,I 'th 44, y*� ' � „_., 1 ,r.14_,,,Iirti„ , „.„,, , .., .,..„,,,,..-.. 1 , ,; ..7 ...., ,,.,.,,, ,,,, i _ ,, : ?be; - 4, .,..4.7„ . w',mil. - -,,7.' 4 tf fir,,,' .,,,,,4 a �l.� - P. 04 °,w, Maw cA.rt,xUlt*.tx itk%- ,,, , A s a, w;rr;, 1 . . , x�a "." x .. WTL2 RDB Black Hawk Creek,RDB Cedar River. Flood risk management works for WTL2 include about 2.5 miles of earthen levees along the Black Hawk Creek, about 2.4 miles of earthen levees along the Cedar River and about 1 mile of flood walls. The tie to high ground along Black Hawk Creek is at the Sergeant Road Trail embankment upstream from Movilla Street. The downstream tie to high ground is west of the railroad tracks at the intersection of Sheffield Avenue and Easton Avenue. Interior drainage includes numerous pump stations and ponding areas. The existing pump station at the foot of West Sixth Street was enlarged to 103,000 g.p.m.. A new pump station at West 15th Street has a 9,900 g.p.m. capacity. The Hawthorne Avenue pump station has a capacity of 27,000 g.p.m.. At other locations where , storm sewers intersect the levee, they were extended through the levee and sluice gates were installed for positive closure. Where sanitary sewers intersect the levee, sluice gates were installed for backflow prevention. Sandbag closures were also constructed at various locations in ," this unit. Construction was completed on this section in 1982. The City has constructed the 4 SWIF LOI ATTACHMENT following pump stations to reduce interior ponding after the 2008 flood: Commercial Street and River Road with a capacity of 69,000 g.p.m.. The Commercial Street pump station replaced the Miles Street pump station and is not part of the system for PL 84-99 repairs. The Hollywood Area pump Station has a capacity of 25,000 and is not part of the system for PL-84-99 repairs. The Fletcher Avenue pump Station has a capacity 14,000 g.p.m.. The Westfield Avenue at John Deere pump Station has a capacity of 300 g.p.m. and is not part of the system for PL-84-99 repairs. The leveed area includes 900 acres of land that includes residential, commercial and agriculture Rom infrastructure, including a John Deere foundry and numerous businesses to support John Deere, banks a concrete plant and fire stations, City Hall, County Courthouse, county jail and several sanitary sewer pump stations. The population at risk(PAR) is 1,399. A map of this system is shown below. .� fig' r Y7 .+ '' _. • Aye, ,�L* r. I ,� � e � 6p �, . tin t^" ; .,,. . - '.. ROB CEDAR R'd a ,/BLACK HAWK CK(SW) .z" . 1,e, System 5105920002 Segment-510450006i ,*„ k gy 1 - „' ea ,, y +* " 144.4 tyi ' 41 ' lf, x s Vtirr AN‘ ,g .. ^ �,� ._` # i ' .* �y4 ° s , t;a"- - + «" T:'�rwiiiaoa. ru 44,4 � ' , a.. WTL3 Waterloo Sewage Treatment Plant Levee. The Waterloo sewage treatment plant is located in the Cedar River flood plain on the right descending bank of the Cedar River, downstream of the City. A ring levee was provided around this facility with the access roads b.. ramped over the levee. The effluent pumps have a capacity of 48,000 g.p.m.. Construction was completed on this section in 1982. The leveed area contains the sanitary sewer treatment plant for the City of Waterloo. The population at risk(PAR) is 12,just the plant personel. A map of this system is shown below. 5 SWIF LOI ATTACHMENT ,: .�.r ( � r s �ate, # � „,. �A P *� ::, � 1 a, �Se z" -*1 % a+ i 6 ,,,,� sue' �/ 4, ' " < '' -' A n' " 1 � �' w ', .4\ ON WATERLOO.LareS0 ''EATMEUT'PLAUI'(S.'of'i System•5105924004 � } j Segment-519,45600063 jY " * , s ,.r ' d WTL4 LDB Cedar River. Flood risk management works for WTL4 include about 5 miles of — earthen levees and about 1 mile of flood walls. The upstream tie to high ground for WTL4 is north of Broadway Street and east of WCF&N Drive. The project ties into the Evansdale Section 205 project at the downstream city limit on the left descending bank of the Cedar River. Waterloo and Evansdale represent a continuous urbanized development on the Cedar River. The project provides a continuous line of protection for both cities with the city limits dividing the projects. This is the least costly and best arrangement for the two cities. Closure structures are -.4 at four locations: at Park Avenue; 6th Street Railroad Bridge;Eleventh Street and Eighteenth Street. Interior drainage improvements in WTL4 include ponding areas and pump stations. At the mouth of Virden Creek, a pump station was built that has a 135,000 g.p.m. capacity. The '"" original pump station at the foot of Seventh Street was enlarged to 70,000 g.p.m. capacity. The t E 1st Street pump station has a capacity of 3,300 g.p.m.. The capacity of the E 9th Street Station is 12,000 g.p.m.. Construction was completed on this section in 1982. The City has constructed the following pump stations to reduce interior ponding after the 2008 flood: The Vinton Street pump Station has a capacity of 4,000 g.p.m. and is not part of the system for PL-84-99 repairs. The Blowers Creek pump Station has a capacity of 156,000 and is not part of the system for PL- - 84-99 repairs. The Cedar Bend pump Station has a capacity of 58,000 g.p.m. and is not part of the system for PL-84-99 repairs. 6 SWIF LOI ATTACHMENT — The leveed area includes 3,485 acres of land that includes residential, commercial and agriculture infrastructure, including numerous businesses to support John Deere, banks, railroad switching hub and fire stations, City Hall, County Courthouse, county jail, Mid- American Energy offices, electrical sub-stations, several schools and several sanitary sewer pump stations. The population at risk(PAR) is 15,212. A map of this system is shown below. t } A ' w .A 9 d +.r4-� RR' yy.3 ``""'' zA "vr } is f r.v�nr "s3 r ; , ' ems' ' € 1 '' { ' Y (+ k S +sM 4 RKY 'T H3 '$ f WATERLOO 8 EVAI/SDALE IA- z � � • f "' LDS t;EDAR`RtVER(East) -.4 : q ,,, : ;System 5105924403 -:.. r r ' '- ` r , o , , Waterloo,lirED&'Ceda River{East} ;, + 'n � ;` ti Segment 6144500062.,' , .0 :. �, ' , � � ! �F � -.411Nio -'"tip,'+ ,x la $S'd k 'i' v44.. 1 p :i +•,:,. a+ �, w ter , , .: ..`*+ l ,'`1, w,. ,04 i r:4 a *s ,.,,, t 1 k , • # •F N*, ,", WATERL04�EVANSDALE ra r s .z".r .e. s"�,�LDB4CEDAR�RfVER(East ..; ,_ .,s,.,„ f s s ». : ` ' , : :. .System-5,!105920003 - Evansdate IA-LDB Cedar River Segment- — * , ,. 5104504064 awl i..4<E 4 , ... ± \pip7} $'E , ` t,;,* t F .,# tPzif. , .ii, „ �,4s;*`' t ' '..t, 1 Y :, '.. A- a..., ,-, + a „ $L , i f . •• ��,, 6 7 SWIF LOI ATTACHMENT 2. Description of Deficiencies and Proposal for Using the SWIF Approach c! Unacceptable Items listed for each Waterloo Levee Segment(USACE 2016 PI Report) — Item WTL1 WTL2 WTL3 WTL4 Rank Notes Levee Embankment City Attorney currently Ecroachments M M M A 5 removing encroachments. Levee Embankment Closure Structures A A A A ..,i Levee Embankment Slope Working to repair minor Stability M M A A 4 erosion. Levee Embankment Erosion A A A A Public Works currently Levee Embankment excavating and repairing Animal Control M M M M 7 burrows. Levee Embankment Since inspection all pipes have Culverts/Discharge Pipes U U U U 1 been visually inspected. City Attorney currently Floodwall Encroachments A M N/A M 6 removing encroachments. Floodwall Closure Sturctures A A N/A A Floodwall Tilting/Sliding City Engineer monitoring or Settlement A A N/A M 8 movement. Floodwall Foundation of Concrete Structures A A N/A A Interior Drainage Since inspection all pipes have Culverts/Discharge Pipes U U U U 1 been visually inspected. Interior Drainage Currently working through Sluice/Slide Gates U U U U 2 SWIF process. Interior Drainage Flap Currently clearing through City Gates U M A A 3 maintenance departments. Pump Stations Intake and Working to paint discharge Discharge Lines M M A A 9 piping. Pump Stations - Sluice/Slide Gates A A A A Pump Stations Flap Gates A A A A j Notes: A=Acceptable;M=Minimally Acceptable;U=Unacceptable;N/A=Not Applicable 1 Interior drainage Sluice/Slide gates on the sanitary sewer system are in inoperable. This will require removing and replacing all of the sluice/slide gates inside of the existing gatewell structures. There are also gate valves on the sanitary sewer system that will require excavation 8 ... SWIF LOI ATTACHMENT through the levee, removal of the gate valve, installation of a new gatewell structure and sluice gate. There are 43 sanitary gatewells and gate valves throughout all segments of the system. Since some of these gates will need to be replaced on large sanitary sewer interceptors that feed into the treatment plant, precautions will need to be taken to allow for bypass pumping of raw sewage around the structures. The City of Waterloo has preliminarily divided the system into three areas for the purposes of the sluice gate/gate valve replacements. — Group 1 would comprise all of the RDB Cedar River/LDB Black Hawk Creek(#5105920001), the RDB of Black Hawk Creek(#510592002) and the northern one-half of the LDB Cedar River (#5105920003). This group was determined to be the quickest to develop as they are all just sluice gate replacements and are mainly smaller sewer lines. Group 2 would comprise the southern one-half of the LDB Cedar River (#510592003) and all of the Wastewater Treatment Plant (#510592004). This group will take a little longer to develop as it includes larger diameter sewers as well as the incoming sewer lines into the treatment plant. There is some preliminary thoughts that the gates may be able to be rehabilitated rather than replaced. This decision will be made during the design phase for this group. Group 3 would compromise the RDB Cedar River (#510592002). This group includes the sanitary gate valves that will require excavation into the levee and construction of a gatewell structure and installation of sluice gates as well as the replacement of other sluice gates in the group. This group will require the most permitting and coordination with USACE and will take the longest to get to construction. The City of Waterloo is planning to have the design of Group 2 and Group 3 to be ongoing with the construction of the previous group in order to compress the timeframe to complete all of the repairs. Currently there are no endangered species concerns and the City of Waterloo will follow NEPA policy. The City of Waterloo levee system is currently accredited per Chapter 44, 65.10 of the Code of — Federal Regulations. The City of Waterloo has participated in the National Flood Insurance Program since 1984 and continues to this day. FEMA has been informed of the City of Waterloo levee system receiving an unacceptable rating based on the 2015 USACE routine inspection. The most recent routine continuing eligibility inspection report dated October 21 and 22, 2015 rated the Waterloo, IA -LDB Cedar R. (East), Waterloo, IA -RDB Cedar R. /LDB Black Hawk — Ck(NW), Waterloo, IA - RDB Cedar R. /Black Hawk Ck(SW), Waterloo, IA - W/W Treatment Plant(South) as unacceptable. The primary factor driving the unacceptable rating is that all of the sanitary slide/sluice gates and gate valves are inoperable. -- 9 r-. SWIF LOI ATTACHMENT Given the complexity of the deficiency including location, access to structures, number of ow. structures, bypass pumping of raw sewage and associated corrective actions, such efforts would be best completed through a SWIF process. The levee sponsor will take a"fix the worst deficiency first"prioritized approach with the overall goal of correcting all outstanding deficiencies. Longer term system improvements will be undertaken with the goal of correcting more complex deficiencies. The SWIF will outline deficiencies to be corrected and other proposed system improvements; and will include interim risk reduction measures for unacceptable deficiencies that will be implemented until those deficiencies are corrected. 3.Demonstration of Funding Commitment for SWIF Development and Implementation: The City of Waterloo will secure all funding necessary for the sanitary sewer sluice gate/valve gate replacements. The rough estimated cost for just the replacement of the sanitary sewer sluice gate/valve gate replacements is$3,500,000 and is available from the State of Iowa Revolving Loan Fund. In Appendix A you will find fact sheets related to the State of Iowa Revolving Loan Fund. The State Revolving Loan Fund will only be used on the replacement of the sanitary sewer sluice gate/valve gate replacements. Most maintenance items are handled in-house by various departments. For example Leisure Services mows the levees and removes downed trees. Waste Management inspects and maintains the sluice gates and storm water pump stations. Public Works fills in animal burrows and repairs rutting. All of the maintenance work completed by these departments are included in their individual department budgets and are not budgeted separately. The Engineering Department receives$25,000 per year in general obligation bonds to spray the riprap along the levee system. This allows for approximately one-half of the system to be sprayed each year. In addition the Engineering Department has received approximately $300,000 each year in general obligation bonds from 2013-2016 to remove vegetation along the toe of the levees. It is anticipated that amount of funding will continue for the next 3 years to complete the removals on the entire system. The Engineering Department has received on average$315,000 each year in general obligation bonds from 2012-2016 to replace leaking storm sewer sluice gates, operators and gatewell structure tops. It is anticipated that amount of funding will continue for the next four years to complete the repairs on the entire system. Corrective actions that have been completed or initiated since the last USACE inspection include items at a total estimated cost of$3,225,000.00: Completion of televising of all storm and sanitary sewer pipes penetrations within the levee. Completing three contracts for vegetation removal. Another contract is under design for more vegetation removal. Completed repair and replacement of 20 storm sewer sluice gates, operators and gatewell structure tops. Started construction on four storm sewer sluice gate replacements. Mal Reconstruction of the Blowers Creek Cunette. Removal of two railroad bridges and four railroad swing gates across Black Hawk Creek. 10 SWIF LOI ATTACHMENT Maps of items for general maintenance, based on the 2015 routine Inspection, have been sent to various City departments for correction by May 1, 2017. Some of the items yet to be completed at an estimated cost of$300,00 are as follows:Several encroachment items are in the process of being surveyed and working with our legal department to have them removed. Miscellaneous repairs for painting, riprap replacement and concrete repairs. 4. Interim Risk Reduction Measures: The City of Waterloo is prepared for flood fighting as shown by the recent September 2016 flood event that was the second highest flood on record. There was no damage to the levees from this flood. After the highest recorded flood in 2008, the Corps of Engineers repaired riprap damage to the levee system at a cost of$300,000. The only time that these sanitary sewer sluicegates and valves would need to be closed is if there was a break in the sanitary sewer lines that cross the Cedar River and Black Hawk Creek This would allow river water to back up into the sanitary sewer system. During high water events, City personnel are continuously monitoring the levees and the associated storm and sanitary sewer systems. The risk associated with a sanitary main break requiring the sanitary gatewells and valvewells to be closed is very low. The City of Waterloo will implement interim risk reduction measures (IRRM) immediately upon acceptance of this LOI and continue these measures, as necessary, throughout the development of the SWIF and completion of the rectification work. Such measures will include: Maintaining sandbags and sand supply for filling and installation into upstream manholes to act as a plug. Maintaining an adequate number of portable pumps and hoses to be deployed if bypass pumping is needed. The City of Waterloo also has a policy in place that if there is a call for service about a sanitary sewer backup at a property, the City will automatically televise the sanitary sewer main and check downstream manholes to determine if there is an issue with the .. sanitary sewer main or it is an issue with the property owner's sanitary sewer service. After normal business hours, an emergency call man will be brought in to review the situation and determine the course of action. — In addition to the above physical measures to be deployed, the Engineering Department has already conducted a meeting to the full city council and general public to discuss the sanitary sewer gatewells, the approximate costs and time frame to complete repairs. This public meeting was re-broadcast on the City of Waterloo cable channel and is available on Youtube.corn and the City of Waterloo website for viewing. After the public meeting the Waterloo Courier newspaper — ran a story on this issue. Once the SWIF is approved, the City of Waterloo will provide a press release to the public — detailing how a sanitary sewer gatewell affects homeowners, not just during a flood but any time of year. This press release will he included on the City of Waterloo website during the duration of the repairs. The City of Waterloo will also provide educational materials and links from — FEMA.gov, IowaFloodCenter.org, 1owaEMA.com, Floodsmart.gov and BeReadylowa.gov on its 11 SWIF LOI ATTACHMENT website. The City will also provide a link to the flood insurance rate maps through the FEMA Map Service Center. The City will also provide a link to Alert Iowa. Alert Iowa r (http.•//www.homelandaeeurrty.Iowa,gov/about_IISEMD/alertjowa,htrrrl) is a website where the public can sign up for message/voice alerts for specific emergencies and it also allows the public to provide information for special needs people residing at that specific address. The special needs information is then provided to Black Hawk County Emergency Management which can be provided to cities for use in evacuations. The City of Waterloo has already conducted a public hearing with the full City Council to apprise them of the issues with the sanitary sewer gatewells and valvewells. This public hearing was conducted on June 13, 2016. Minutes of the meeting and video of the meeting are available on the City of Waterloo website. An IRRM plan will be prepared per the USACE ECB 2016-8 dated February 2016. 5.Interagency Collaboration: The SWIF will be developed in consultation with the Iowa Department of Natural Resources and USACE. This interagency collaboration will continue as SWIF measures are implemented. During this time,progress on SWIF milestones will be monitored and evaluated by USACE. Routine continuing eligibility inspections of the levee system will also be jointly undertaken by USACE and the City of Waterloo during the SWIF development and implementation timeline. USACE and the City of Waterloo will coordinate inspections during SWIF development and implementation to ensure milestones are being met. The City of Waterloo will also work with the City of Evansdale as our levee system runs from one city to the other. See attached letter of support from the City of Evansdale. 6. Anticipated State and Federal Permit,Analysis, and Consultation Requirements: The City of Waterloo is responsible for continued operation, maintenance,repair and rehabilitation needs on following: WTL1 Waterloo,IA-RDB Cedar R./LDB Black Hawk Ck(NW) WTL2 Waterloo,IA -RDB Cedar R. /Black Hawk Ck(SW) WTL3 Waterloo,IA-W/W Treatment Plant(South) WTL4 Waterloo,IA-LDB Cedar R. (East) _ Special permitting may be required by the City of Waterloo to perform these activities to ensure operational adequacy of the levee systems. In general,rectification work will involve: The replacement of sluice/slide gates in sanitary gatewell structures and removal of gate valves and replacement with gatewell structures on sanitary sewers. 12 SWIF LOI ATTACHMENT The following environmental permits are anticipated for the project: A possible 401/404 Clean Water Act permit., an Iowa Department of Natural Resources Sovereign Lands permit, NPDES Stormwater Permit, City of Waterloo floodplain permit and a USACE 408 permit. CONCLUSION Given the anticipated scope of necessary work, the City of Waterloo respectfully requests that the levee system (s) listed in Table 1 above retain(s) "active"status in the P.L. 84-99 Program while the SWIF plan is developed. The City of Waterloo ask(s)that this initial request be granted for 2 years, to allow adequate time to develop a successful SWIF plan. — Attached is a letter of support from the City of Evansdale, IA (EVND)for the City of Waterloo's submission of a Letter of Intent for a System-Wide Improvement Framework for the segments listed in Table 1. 13 SWIF LOI ATTACHMENT Appendix A— SRF Funding Information lj About SRF The State Revolving Fund(SRF)is the best choice to finance the design and construction of Iowa water and wastewater infrastructure. The Clean Water SRF funds wastewater treatment,sewer rehabilitation,and stormwater quality improvements, as well as non-point source projects. The Drinking Water SRF funds water treatment plants or improvements to existing facilities,water line extensions to existing unserved properties,water storage facilities,wells and source water protection efforts. The Department of Natural Resources(DNR)and the Iowa Finance Authority(IFA)jointly administer the SRF. The DNR administers the environmental and permitting aspects to get projects ready for financing.This includes engineering and design approval and construction permits.DNR staff assists applicants through the environmental review process.IFA manages the financing side of the programs.IFA staff works with applicants on loan approvals and disbursements. Eligibility Clean Water Loan Program Publicly owned wastewater treatment works,including those owned by cities,counties,sanitary districts,and utility management organizations are eligible. For non-point source projects,both public and private entities are eligible,including farmers.landowners. watershed organizations,landfills and rural homeowners. Drinking Water Loan Program Public and private community water systems whether they are for profit or not for profit,nontransient noncommunity public water supplies if they are either publicly owned or are not for profit and transient noncommunity systems if they are owned by government entities are eligible. Types of Loans Construction Loans SRF has the lowest cost funds compared to other financing options with interest rate of 1.75%for loans of up to 20 years. The extended loan term is up to 30 years,based on the average life of the project components, for all Clean Water SRF loans.Communities considered disadvantaged under DNR rules can receive 1.75%on loans from 20-30 years. Other extended term loans will be at 2.75%.For Drinking Water SRF loans.only disadvantaged communities(based on Community Development Block Grant criteria)can qualify for extended terms and the interest rate is 1.75%. There is a 0.5%origination fee and a 0.25%annual servicing fee on outstanding principal. Planning&Design(P80)Loans P&D Loans are offered at 0%interest for up to three years to cover engineering and project development costs.P&D loans can be rolled into an SRF construction loan,or paid off with other permanent financing. Source Water Protection Loans These loans are offered at a 0%interest rate and can help public water supplies acquire land and conservation easements from willing sellers,or fund source water protection practices in their wellhead or source water protection areas. Non-point Source Loans Low-interest loans are available to public and private borrowers to address stormwater management, inadequate septic systems,landfill closure,lake restoration.soil erosion control,brownfield cleanup,manure management and much more. 14 SWIF LOT ATTACHMENT Intended Use Plans(IUPs) The Intended Use Plans(IUPs)for the Clean Water SRF and the Drinking Wafer SRF outline the amounts of funding available and the planned uses(including project priority lists).The IUPs are published quarterly with an opportunity for input by stakeholders and program users before approval by the Iowa Environmental Protection Commission, SRF Forms SRF Operating Procedures The State Revolving Fund.Investing in Iowa's Water Iowa Finance Authority:600.432.7230 I Iowa Department of Natural Resources:515.725.049S 15 j SWIF LOI ATTACHMENT Planning&Design Loans For Wastewater,Storm Water& Drinking Water Infrastructure Planning&Design Loans • Financial assistance for communities that are in the planning and design phase of a proposed water pollution control or drinking water project. • 0%interest for up to 3 years • NO initiation fee SRF • NO servicing fee• NO minimum loan amount STATE REVOLVING • NO maximum loan amount • Eligible costs include the following: Engineering fees,archaeological surveys,environmental studies, and fees related to project plan preparation and submission. • Loans will be rolled into a SRF construction loan OR may be repaid upon permanent financing. • The project planning and design costs must be directly related to the proposed wastewater,storm water or drinking water project. Water pollution control projects: • Construction of treatment plants or improvements to existing facilities • Sewer line extensions to existing unsewered properties • Combined sewer overflow corrections • Infiltration/inflow projects • Storm water projects that have an environmental benefit Drinking water projects: • Construction of treatment plants or improvements to existing facilities • Water line extensions to existing unserved properties • Water storage facilities • Wells Eligible Entities: • Cities,towns,counties,regional sewer/water districts,conservancy districts and water authorities eligible for SRF loans. • Private and not-for-profit facilities eligible for Drinking Water SRF loans. Application forms are available at www.iowasrf.com. For more information,contact: Lori Beary 515-725.4965 800-432-7230 lori.beary@iowa.gov Tracy Scebold 515-725-4922 800-432-7230 tracv.sceboldfliowa.kov Iowa Finance Authority 2015 Grand Avenue Des Moines,IA 50312 515.725.4900 800.432.7230 515.725.4901(fax) 16 SWIF LOI ATTACHMENT Drinking Water Eligible Projects and Project-Related Costs • Projects that address present Safe Drinking Water Act health standards that have been exceeded or to prevent future violations. • Projects to replace aging infrastructure; • Rehabilitate or develop sources(excluding reservoirs,darns clam rehabilitation and water rights)to replace contaminated sources; • Install or upgrade treatment facilities if the project will improve the quality of drinking water • install or upgrade storage facilities,including finished reservoirs,to prevent microbiological ., contaminants from entering the water system,and • Install or replace transmission and distribution pipes to prevent contamination caused by leaks or breaks or to improve water pressure to safe levels. • Projects to restructure and consolidate water supplies to rectify a contamination problem or to assist systems unable to maintain SDWA compliance for financial or managerial reasons. • Land acquisition if it is integral to the project(i.e.,needed to meet or maintain compliance and further public health protection such as land needed to locate eligible treatment or distribution facilities),and acquisition must be from a willing seller. Examples of Ineligible Projects and Project-Related Costs • Dams or the rehabilitation of dams • Water rights • Reservoirs,except for finished water reservoirs and those reservoirs that are part of the treatment process and are located on the property where the treatment facility is located • Monitoring fees • Operation and maintenance costs • Projects needed mainly for fire protection • Projects for systems that lack adequate technical,managerial and financial capacity,unless assistance will ensure compliance • Projects for systems in significant noncompliance,unless funding will ensure compliance • Projects primarily intended to serve future growth (Source: US EPA Drinking Water State Revolving Fund Program Guidelines: Part Ill) Wastewater Eligible Projects and Project-Related Costs the acquisition,construction,rehabilitation,equipping, improvement or extension of any works and facilities used for the collection,treatment and disposal of sewage and industrial waste in a sanitary manner.(IAC 567—Ch.90.2) These would include: • Treatment plant improvements and upgrades • Sewer line extensions to existing unsewered communities • Combined sewer overflow corrections • Infiltration/inflow projects Examples of Ineligible Projects and Project-Related Costs • Service lines and in-house plumbing • Operation and maintenance costs • Vehicles and tools 17 SWIF LOI ATTACHMENT SRF sjtiTF -. . .. rs Clean Water Loan Program IO/!d'tCtaan\>tiaterStet()RovodvirrgFund(CW5€2F)fsthebastcheapto Program Resources fimott publicly owned wastewater treatment,mwer rvhabl€tr an, replacement,and construction,end storm'weer ctratityirrpravements. Since 19d9,the CWSRF hot provided lraory than$1.4 billion in financing 'few the wastcrrater coristrecltnn nnrnus and assistance(cr orator potation control. olhaf program rCSWfcns Step.bb.Step--.roc s Q crvtow • A Reject Initiation meeting Is rear-ire('before the planning process hepirvs. Click hero to obtain art krucordra tesiform. Intended Use Plan • After a facility plant Is submitted,an IUP application must be Information submitted to request Inclusion on the CWSRF IUP, •Applicants must follow the wastewater construction permlttinp process to he eligible to apply ks bw CWSRF. • Projects must ha on art approved IUP to bo eligible for funding,The IUP Application Is not an eppttcabert for a loan Vol'Itic I tec 1 d Use • once the protract Is listed on an epprared IUP),Ills ellg'ble to apply Plans for an SR F loafs. —--- • The IUP schedule and consrnntifan io n apptslcaldon Is evegieble hero. Intended Use Plan Testimonial TTta CWSRF Intended Use Plan(IUF)outlines ew funding available and the plarrod usos,inrludng project priority lists.Tho IUP is put shed quarterly with an opportunity for input by stakeholders and program users before arc—Koval by the Iowa Fnvwonmental Protection Commission, Program Guidance • The wastewater construction manual is n Map-by-slop guide to the process of planning and perrritting awastewater project and Includes lestruckrre for pardclpating In the CWSRF program The SRF provided the Masi rates Project Ranking ava sble for the City of Shcna> oott Tho CWSRF prefect scoring systavn criteria consider the use classification to fnnrlce improvements to it* of the receiving vectors,water quay of the receiving waters,groundwater t/rttsle VVtater Treatment Facility, protectko,project type,prolect use and a tiebreaker.Piracy CWSRF project is scored and ranked,The CWSRF Is currently able to farad all Marcia 1rlcKay,City Ciork/Treasurcr projects. Shenandoah Program Contacts Patti Cele-Finnegan Irma Department al Nsturfil Resources SRF Program Coordinator 515.725-0490 Tracy Srv}xild ' Iowa Finance Authority SRF Program Manager &OD-432-723D Tho State Revolving Fund:trrvesting In Iowa's Vret-er Iowa rinanco Authority:WM32 723o j hone Department of Natural Resources:615.725.0490 18 SWIF LOI ATTACHMENT Appendix B—Letter of Support CITY or. CITY OF EVA SDALaE, IOWA eittg 12311.EVANS ROAD+EVANSDALE,IA 30707+(310)232.0003+FAX(310)232.17100 E AY..E DOUG MARS Mayor May 10,2016 CDT COUNCIL MEMBERS: Mr.Jamie Knutson,P,E, KENNYiovruS Waterloo Flood Engineer Ward City Of Waterloo Engineering Dept. ROtt ratcitots 715 Mulberry Street Waal a Waterloo,IA 50703 STEVE SEMI Ward; Subject:SWIF Letter of Intent to US Army Corps of Engineers litr City of tMCK DEWATER Waterloo Portion of the Waterloo,IA—Evansdale,IA Local Flood Want 4 Control System on the Cedar River GENE WALKER The City ofEvansdalc,Iowa,hereby supports the submission of Letters of Intent Ar-tarye by the City of Waterloo,Iowa,to prepare System-Wide Improvement Frameworks for levee segment W FL4 Waterloo,IA—LDI3 Cedar River(East)in support of continued rehabilitation eligibility for segment WIL4 Waterloo,IA-- LDB Cedar River(East)and segment EVND Evansdale,IA -LD13 Cedar River. j Sincerely, 4 Doug Faas,Mayor City of livansdalu,Iowa Imo CITY WEaSITEO EVANSDALE.GoVOFFIDE.COM 19