CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Change Order #1 to Contract 18-178, Royal Saint George Water Main replacement, to Copenhaver Construction for an additional 180 days
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DEPARTMENT: Water Utilities
SUBMITTED BY: Mark Curran, Interim Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
In September 2018, the City Council awarded Contract 18-178 to Copenhaver Construction (Copenhaver) in the amount of $475,386.78 for the replacement of 900 feet of 10-inch watermain on Royal St. George between Cress Creek Park and Flossmoor Court. This segment of watermain experienced a number of breaks disrupting utility service to the area. Replacing the watermain will provide long lasting service and restore reliability. The substantial completion date for the work was November 16, 2018.
DISCUSSION:
A notice to proceed was issued to Copenhaver on October 1, 2018 to begin work. Following the notice to proceed, Copenhaver approached City staff to request a change in the construction method used to install the new watermain. In an effort to value engineer the project, Copenhaver proposed to install the watermain by a directional drilling method. The method would be done in lieu of the open-cut method specified in the contract. By directionally drilling the watermain, there would be less surface disturbance to restore, less impact to residents and an overall net savings to the City.
Knowing subsurface conditions in the area, staff was cautious of directional drilling; however, with the contractor's assurances and anticipated savings to the project, staff tentatively agreed to the proposal. Mobilization to begin work was delayed while the contractor coordinated the change in method, including ordering materials and scheduling the directional drilling contractor.
Work officially commenced on October 24, 2018. However, after the excavation work began, Copenhaver and its directional boring subcontractor determined the directional dril...
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