This is for contract modification No. 2 for the Gwinnett Street Widening Project with Preferred Materials Inc. in the amount of $758,000 due to having to redesign the bridge. The Gwinnett Street Widening project consists of widening the existing two-lane roadway to four lanes. The proposed construction includes the addition of sidewalks and bike lanes on both the east and westbound lanes. The Springfield Canal will also be widened to accommodate stormwater conveyance. The existing culvert is being removed and replaced with a reinforced concrete bridge. The limits of construction extend from west of Stiles Avenue to Interstate 16. 

Bridge plans for the project provided theoretical pile lengths using data from the bridge foundation report. Test piles were driven as per the contract to determine pile lengths. Piles at one location could not be driven to the designed depth due to the unexpected encounter with a layer of impenetrable subsurface material. Because the bridge piles could not be driven to the required length, the bridge had to be redesigned to compensate for shorter pile lengths. The result of the bridge redesign was an increase in quantity for several contact pay items. The cost of constructing the redesigned bridge is $758,000. 

The original contract was approved by City Council on March 12, 2020, in the amount of $13,662,943. Contract modification No 1. was approved by City Council on March 25, 2021, in the amount of $973,739. The new contract amount with the addition of this modification is $15,394,682.

Approval