CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Change Order #1 to Contract 22-280, Trip Hazard Removal Program, to ASTI Sawing Inc. for an amount not to exceed $112,904.82 and a total award of $179,276.22 and for an additional 162 days
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DEPARTMENT: Transportation, Engineering and Development
SUBMITTED BY: William J. Novack, PE, Director/City Engineer
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
The City Manager awarded Contract 22-280 to ASTI Sawing Inc. on September 30, 2022 with a completion date of December 20, 2022. The purpose of this contract is to remove differentials at sidewalk joints which can be trip hazards. The City identified a group of subdivisions to receive this treatment in advance of upcoming 2023 road resurfacing. Treating the sidewalks prior to the start of the resurfacing program is more cost-effective and will result in a reduction of concrete replacement.
This is the first Change Order to this contract.
DISCUSSION:
This Change Order is requested to provide additional quantity to the awarded contract following completion of Area 1 and Area 3.
In previous years, this contract approach was used on arterial streets. Quantities were estimated using historical cut rates and values from previous programs. This year's program included streets internal to subdivisions.
The cut rate on streets internal to the subdivision were found to be 175% higher than anticipated. The increase is believed to be related to higher incidence of tree roots and other utility components which result in impacts to the sidewalk condition. To complete improvements within all originally identified subdivisions, an additional 5,600 in-ft of cutting is anticipated.
This Change Order also includes the addition of 95th Street from Book Road to Plainfield-Naperville Road. The TED Business Group recently received a complaint for this area regarding differentials along 95th Street. This segment of sidewalk was scheduled for the 2023 Sidewalk S...
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