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HomeMy WebLinkAboutADDENDUM NO 1 (2) ADDENDUM NO. 1 TO THE BIDDING DOCUMENTS FOR F. Y. 2008 WEST COMMERCIAL ST. EXTENSION, RIVER ROAD RELOCATION AND STORM WATER PUMP STATION CITY OF WATERLOO CONTRACT NO. 720 WATERLOO, IOWA DATE: July 9, 2008 LETTING DATE&TIME: July 14,2008,4:00 P. M. TO ALL BIDDERS ON THE ABOVE PROJECT: All Bidders submitting a bid on the above contract shall carefully read this Addendum and give it consideration in the preparation of their bid. 1. Delete Bikeway from typical section Jefferson St. (Sheet 3). 2. Revise Alternate Reference near STA 27+00,RT to"ALT. No. 3", (Sheet 19). 3. Revise longitudinal grade for Deere Access Rd.to 3.84%(Sheet 19). 4. Revise form grade/rim elevations per attached revised plan sheet 7. 5. BID FORM Revise description for item 20 to"Removal and Relocation of chain link fence". Fence is to be re-installed from STA 105+12± to STA 109+24±, Left side. Removal is estimated to be 444 L.F.re-installation is estimated to be 373 L.F.,with the balance of chain link fence disposed of on-site. Revise quantity of item 20 to 444 L.F. 6. Additional storm sewer profiles are attached for pipes P15,P2, P1,P8A, P8 and P41. 7. Revise width of door to 42 inches, Sheet P7. 8. Plan sheet S-12. Add the following to item No. 6 of the"Cofferdam dewatering notes" A second basin may be excavated by the Contractor at his cost,if desired. The size of this basin shall not exceed 80' x 80' by 8' deep without prior approval and shall be located as shown on the attached drawing. See attached site plan for location. Basin shall be backfilled and compacted.A minimum of 18"of clean material shall be placed as cover. 9. Spec Section 26 0526-Grounding and Bonding for Electrical Systems A. Provide a ground grid for the building grounding system consisting of a minimum of four ground rods. ADDENDUM NO. 1 F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 1 of 5 JULY 9,2008 RIVER ROAD RELOCATION AND STORMWATER PUMP STATION CONTRACT 720 B. Provide a separate ground grid for the wet well. Provide a minimum of four ground rods and tie to the various building components as listed in the specification and required by code. Solidly bond the two ground grids together using a minimum conductor size of 2/0. 10. Spec Section 26 2701-Utility Service Entrance A. Part 2.03: Provide a 1500 kVA transformer pad and containment per MidAmerican Energy requirements. See Attached details from MidAmerican Energy. Provide transformer pad with Iowa DOT Class C4 concrete. 11. Spec Section 26 9000-Pump Station Controls A. Part 2.04: Delete prepaid cell phone service. B. Part 2.04: Coordinate cellular telephone requirements with city prior to ordering. Provide all appropriate mounting hardware for cellular antenna. 12. Sheet E-2 A. Stub out three 1"conduits for future generator connections. Turn conduits up into building. B. Note that there is a minimum of 10'-0"between the building wall and the transformer pad. See civil drawings for more information. 13. Sheet E-3 A. Electrical Riser Diagram: Secondary conductors from the utility transformer shall be located at least 36"below grade. B. Electrical Riser Diagram: The long-radius sweeps for the conduits for the primary conductors to the utility transformer shall be allowed to be fiberglass,per MidAmerican Energy requirements. C. Stub 4"PVC, Schedule 80 conduit out of transformer, 6' clear of edge of transformer pad. Cap water-tight. 14. Delete Item No. 73-Lighting Poles from the Form of Bid, and Plan Sheets 4 and 6. 15. A. Add Item No. 95-Light Bases-2 each to the Form of Bid and Estimated Quantities, Sheet 4. B. Add the following Bid Reference Note: Construct new light bases in 2 locations at the intersection as shown on Plan Sheet No. 28. Item includes the furnishing and installation of anchor bolts in a size and pattern that matches the existing light pole base plates on River Road. 16.A. Add Item No. 96-Relocation of Street Light-2 Each to the Form of Bid and Estimated Quantities Sheet 4. B. Add the following Bid Reference Note: Relocate 2 existing street lights from the abandoned River Road. Work shall include poles, mastarms,luminaires and all other necessary materials required to provide working lighting system at the intersection shown on Plan Sheet No. 28. ADDENDUM NO. I F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 2 of 5 JULY 9,2008 RIVER ROAD RELOCATION AND STORMWATER PUMP STATION CONTRACT 720 C. Item includes new luminaires,250 watt high pressure sodium vapor and shall provide ANSUIES light distribution pattern type 11,photoelectric control,molded in line fuse connector, new#10 copper stranded THWN wire, multi-voltage ballast for a 120/240 OV single phase circuit.All work shall be in conformance with the city of Waterloo Traffic Operations Standards. 17. Revise conduit size in Item No. 76 to 2"PVC, Schedule 80. 18. Revise quantity of Item No. 77 to 391 L.F. Conduit from pole to transformer pad (2-4"PVC, Schedule 40) shall be furnished and installed by contractor. 19. A. Add Pay Item No. 100 Selected Backfill Material 13,278 C.Y. Selected backfill material shall be taken from the existing on-site stockpile located near STA13+00. All work shall conform to Iowa D.O.T. Standard Specification 2102.04 except for compaction requirements. Compaction shall meet the following requirements: 1. Maximum compaction shall be determined on an initial,trial section approximately 500 feet long.Nuclear testing equipment will be used. Compaction and testing shall continue on this section until maximum consolidation is achieved. Surface applications of water may be required, as directed by the Engineer.The Engineer may require this procedure to be repeated to redetermine maximum consolidation. 2. All selected backfill material shall be compacted to at least 95 percent of maximum consolidation,and the compaction will be determined using nuclear testing equipment. The final compaction shall be with a steel tired roller. Measurement and payment shall be according to Iowa D.O.T. Standard Specifications 2102.13 and 2102.14. B. Add Pay Item No. 101 Water 1,000 MGa1 Water shall be provided by the Contractor for use in compacting the selected backfill material. Contractor shall be responsible for all costs,fees,meters,backflow preventers and other costs as required and provided by Waterloo Water Works . Water for this item shall be measured and paid only for compacting the selected backfill material. Other water used on this project shall be incidental. Water shall be measured and paid according to Iowa D.O.T. Standard Specifications 2102.13 and 2102.14. 20. Add Item No. 97-Street Lighting Modifications-1 L.S. This work shall include connections, terminations and removals to the existing River Road Street lighting 3PH 480V system as follows: ADDENDUM NO. I F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 3 of 5 JULY 9,2008 RIVER ROAD RELOCATION AND STORMWATER PUMP STATION CONTRACT 720 At John Deere gate No. 16 on River Road connect the lighting circuit from pole No. 674 to pole No. 678, approximately 300 L.F., on the northerly,river side, and connect the lighting circuit on the southerly side from pole No. 677 to pole No. 679, approximately 200 L.F.,which will require 100 L.F. of 2"red interduct,H.D.D.,bored under gate No. 16 P.C.C. drive. Existing records indicate conductors are 2C-1/O aluminum Direct Burial,field verify and match existing size and type. All conductors shall have 30" minimum cover. Backfill shall be placed in 8"maximum lifts and compacted to 98% standard proctor density,ASTM: D-698.Topsoil separation and replacement, site restoration,clean-up;fertilizing, urban seeding and mulching are included. At approximately STA 108+00+/-, River Road, to be field located by the engineer the existing circuits, from Westfield Ave. control panel, shall be terminated and removed from 2 bases in a workmanship like manner. At the existing Westfield Ave. and River Road intersection the existing control panel, salvage to city. Footing, conduits,wire and service drop shall be removed. Suitable backfill shall be placed in 8"maximum lifts and compacted to 95% Standard Proctor Density,ASTM: 698. All work shall be in conformance with the city of Waterloo Traffic Operations and coordinated with MidAmerican performing associated work. 21. Add Item No. 98-Electrical Control Panel Relocation-1 L.S. This work shall include the relocation of the existing light control cabinet approximately 13.5' southerly, for the River Road walkway and parking lot,new cabinet base,removal of old base,new conduits &connections to existing, new wire& connections to the walkway light,reuse of existing parking lot wire,if not damaged, and connections, relocation of the 2 flood lights, service disconnect,meter,conduit,weather head and wire from the existing service pole to the new service pole,to be set by MidAmerican,new conduit,wire and connections from the service disconnect to the control panel, and removal of the existing service pole. All work shall be in conformance with the city of Waterloo Traffic Operations and coordinated with MidAmerican performing other work. Refer to attached Base Detail. 22. Add Item No. 99-Removal of Concrete Grade Beams 46 C.Y. Item includes removal and disposal of concrete grade beams(including reinforcing steel) within 60' of proposed roadway centerlines. Removal shall extend from the existing surface to 4' below the designed finish grade. All materials which are removed shall be disposed of on-site. 23. Plan Sheets-Add the following to Bid Reference Notes 7-13, 14-16, 17-22 and 99: Items include on-site disposal. All on-site disposal shall be broken to a maximum size of 1 cubic foot and disposed of on-site with a minimum of 18"cover of clean material. Disposal shall be outside of paved areas, a minimum of 2 feet back of curb. All protruding steel shall be cut to within 1 inch of encasing concrete. ADDENDUM NO. 1 F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 4 of 5 JULY 9,2008 RIVER ROAD RELOCATION AND STORMWATER PUMP STATION CONTRACT 720 24. Plan Sheets,4 and 6-Add the following Bid Item and Bid Reference Note: Add Item No. 102-Removal of Pavement,P.C.C., Off-site Disposal 6503 S.Y. Item includes removal, hauling and disposal to an off-site disposal area approved in advance by the City and Engineer. All protruding steel shall be cut to within 1 inch of encasing concrete. 25. Item No. 11-Removal of Pavement,A.C.C.-Areas measured for removal include full- depth A.C.C.or A.C.C. overlay on P.C.C. Removal shall be full-depth, including incidental P.C.C. and reinforcing steel. All protruding steel shall be cut to within 1 inch of encasing concrete. 26. Item No. 10-Revise quantity to 12,777 S.Y. 27. Plan Sheets 17, 18, 19-Driveway Pavement thickness should be 7". 28. Replace previous Form of Bid with attached Form of Bid. 29. Items 59 and 359-All joints,longitudinal and transverse,are to be sealed. 30. A. Delete Item No. 83-"Portland Cement Concrete Pavement Samples"from the Form of Bid, the Estimated Project Quantities on Sheet 4, and the Bid Reference Notes on Sheet 6. B. Items 59 and 359-"Pavement,P.C.C.,9-inch thick, IDOT Class C"-Add the following to the Bid Reference Notes on Sheet 6:The thickness index percent payment shall be 100%maximum. 31. Add Item No. 103-Sanitary M.H. Casting and Seal-4 Each. Each Sanitary M.H. shall be supplied with a new casting frame&lid,Neenah 1643 self-sealing manhole cover with "Sanitary"lettering, or approved equal, and an internal chimney seal shall be installer. Any revisions to any of the Contract Documents made by this Addendum shall be considered as the same revision to any and all related areas of the Contract Documents not specifically called out in this Addendum. The bidder shall acknowledge receipt of this Addendum by inserting the number and date in the spaces provided in the Form of Bid or Proposal, Item 9,Page 9 of 10. Thomas J. onan,P. E. Wayne C1 assen Engineering and Surveying, Inc. ADDENDUM NO. 1 F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 5 of 5 JULY 9,2008 RIVER ROAD RELOCATION AND STORM WATER PUMP STATION CONTRACT 720 ADDENDUM NO.2 TO THE BIDDING DOCUMENTS FOR F. Y. 2008 WEST COMMERCIAL ST. EXTENSION, RIVER ROAD RELOCATION AND STORM WATER PUMP STATION CITY OF WATERLOO CONTRACT NO. 720 WATERLOO, IOWA DATE: July 10, 2008 LE 1"1 ING DATE &TIME: July 14, 2008, 4:00 P. M. TO ALL BIDDERS ON THE ABOVE PROJECT: All Bidders submitting a bid on the above contract shall carefully read this Addendum and give it consideration in the preparation of their bid. 1. Form of Bid-Replace Page 2 of 10 with the attached Page 2 of 10,this updates Item No. 20 Description and Quantity. Any revisions to any of the Contract Documents made by this Addendum shall be considered as the same revision to any and all related areas of the Contract Documents not specifically called out in this Addendum. The bidder shall acknowledge receipt of this Addendum by inserting the number and date in the spaces provided in the Form of Bid or Proposal, Item 9, Page 9 of 10. 7-7 c anti— -� Thomas J. nan, . E. Wayne Claassen Engineering and Surveying, Inc. ADDENDUM NO.2 F.Y.2008 WEST COMMERCIAL ST.EXTENSION Page 1 of 1 DULY 10,2008 RIVER ROAD RELOCATION AND STORMWATER PUMP STATION CONTRACT 720