CR 99-48 Approve Change Over- South Park Pond Maintenance
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February 24, 1999 Council Report 98-048
Approve Change Order - South Park Pond Maintenance
Proposed Action. Staff recommends adoption of the following motion: Move that
Council approve South Park Pond Maintenance contract chanQe order for an amount
not to exceed $14.220.
Overview.
This construction contract is for the removal of excess sediment deposits by dredging in
the South park pond Gust east of the 9-Mile Cove development). The contract was bid
and awarded to the low bidder, Risto Construction, at a cost of $23,496.00. There were
six bidders with the second low bid being $38,416.60. The contractor began work on
February 11th and has completed the dredging portion of the contract. The original
contract specified an estimated 1,800 cubic yards of sediment removal. The city's
consultant, RCM & Associates, determined after contract award that the actual quantity
of removal will be closer to 3,000 cubic yards. The error was caused by not extending
the limits of excavation near enough to the pond banks. The actual quantity of material
removed will be determined by comparing before and after surveys.
. Primary Issues to consider.
. Project budget
The estimated budget for this project was $80,000. With this change order, the actual
project cost will be $49,191 ( $37,716 - construction + $11,475 - engineering &
construction services).
. Staff recommendation
Rosti Construction bid a relatively low unit price for excavation, $11.85/cubic yard,
almost 50% below the next low bidder. The additional construction cost is simply an
extension of this same unit price for the additional cubic yards of excavation. It is in the
city's best interest to complete all necessary excavation under this contract -
recommend approval.
Supportino Information.
. Project locati~~
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. Steven J. Stadler, Public Works Director
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[ DATE .,
FILE NO
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