HomeMy WebLinkAboutMinturn, Inc. - CO #1 - FY18 Bridge & Culvert Repairs, Cont. 950 - 7/2/2018CITY OF WATERLOO, IOWA
CHANGE ORDER No. 1
PROJECT: F.Y. 2018 BRIDGE AND CULVERT REPAIRS
CONTRACT NO. 950 Date Prepared: June25,2018 AMOUNT: $65,900.00 INCREASE
TO: MINTURN. INC. , Contractor
You are hereby ordered to make the following changes from the plans and specifications or perform the
following extra work on your contract dated May 14, 2018.
A.
FV
C.
Description of change to be made or extra work to be done:
1001 PCC Pavement, 11"
1002 Structural Concrete Repair
1003 Donald Street Abutment Concrete Patching
1004 Bishop Avenue Concrete Patching
1005 Ridgeway Avenue Concrete Patching
Reason for ordering change or extra work:
1001 Prior to the start of work on Newell Street, both the City and the Contractor noted the poor
condition of the Newell Street bridge deck, which was not part of this project's repairs and is not
currently planned. Several different deck repair options were discussed, with an asphalt overlay
selected to preserve the deck. This overlay raised the height of the deck approximately 1-1/2".
If no adjustments were made to the approach repairs, the increase in the longitudinal grade into
and off the bridge deck would potentially create vehicular handling concerns.
1002 The original repairs plans for Donald Street denoted a quantity of 9 SF for repairs of the barrier
rail. During removals, it was found that the deterioration far exceeded 9 SF and the planned
concrete repairs necessitated structural concrete repairs to make the barrier rail sound.
1003 The original repair plans for Donald Street denoted a quantity of 2 SF for repairs of the
abutment. During removals, it was found that the needed repairs were roughly 28 SF.
1004 The original repair plans for Bishop Avenue denoted a quantity of 10 SF for concrete repairs to
the culvert structure. During removals, it was found that the needed repairs were roughly 110
SF.
1005 The original repair plans for Ridgway Avenue denoted a quantity of 10 SF for concrete repairs to
the bridge. During removals, it was found that the needed repairs were roughly 30 SF.
Settlement for cost of work to be made as follows:
1001 The Contractor wished to use the Bridge Approach Pavement, As Per Plan price of $250/SY.
Negotiations between the City and the Contractor resulted in the Contractor proposing the PCC
Pavement, 11" item at a cost of $225/SY. The estimated final quantity for this item is 94 SY.
The negotiated price represents a savings of approximately $2,350. The total estimated final
cost for this additional item is $21,150.00.
Change Order No. 1 Contract No. 950 Sheet 1 of 2
1002 The Contractor's unit price for Concrete Repair is $400/SF. The repair area was originally
planned to be 9 SF, for a total cost of $3,600. Upon further investigation, the estimated repair
area is 50 SF, which would have produced a final cost of $20,000 at bid price. Negotiations
between the City and the Contractor resulted in the Contractor proposing Structural Concrete
Repairs at a cost of $5,000/CY. The final estimated barrier rail quantity is 1.5 CY for a cost of
$7,500. This negotiated price represents a savings of $12,500. The total estimated final cost
for this additional item is $7,500.
1003 The Contractor's unit price for Concrete Repairs is $400/SF. The repair area was originally 2
SF for a total cost of $800. Upon further investigation, the final area is roughly 28 SF, which
would have produced a final cost of $11,200 at bid price. Negotiations between the City and the
Contractor resulted in the Contractor proposing Donald Street Abutment Concrete Patching at a
unit cost of $250/SF. With a final patching quantity estimated at 28 SF, this negotiated price
represents a savings of $4,200. The total estimate final cost for this additional item is $7,000.
1004 The Contractor's unit price for Concrete Repairs is $400/SF. The repair area was originally 10
SF for a total cost of $4,000. Upon further investigation, the total repair area is estimated at 110
SF, which would produce a final cost of $44,000 at bid price. Negotiations between the City and
the Contractor resulted in the Contractor proposing Bishop Avenue Concrete Patching at a unit
cost of $200/SF. With a final repair quantity estimated at 110 SF, this negotiated price
represents a savings of $22,000. The total cost for this additional item is $22,000.
1005 The Contractor's unit price for Concrete Repairs is $400/SF. The repair area was originally 10
SF for a total cost of $4,000. Upon further investigation, the total repair area at this site is
estimated at 30 SF, which would produce a final cost of $12,000 at bid price. Negotiations
between the City and the Contractor resulted in the Contractor proposing Ridgeway Avenue
Concrete Patching at a unit cost of $275/SF. With a final repair quantity estimated at 30 SF, this
negotiated price represents a savings of $3,750. The total cost for this additional item is
$8,250.
TOTAL INCREASE $65,900.00
BY: 2 4 MINTURN INC. - `� +
Mayor Date CONTRACTOR
ATTESX&a
T:
City ClerK I Date
BY: Clint Rhoads 7/3/18
Date
TITLE: president
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Change Order No. 1 Contract No. 950 Sheet 2 of 2