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Board approves $149,380.69 change order for CIPP repair on Chestnut/Walnut sewer main
Summary
The utility board authorized a $149,380.69 change order to Inliner Solutions to install cured-in-place pipe (CIPP) lining after a sinkhole formed on a 24-inch sewer main; staff said the approach was chosen to minimize schedule impacts and avoid additional disruption to a concurrent road project.
The Evansville City Water and Sewer Utility Board approved change order No. 2 in the amount of $149,380.69 to Inliner Solutions for the 2024 annual sewer lining project, Frederick Neighborhood Phase 1, after a sinkhole and longitudinal crack were discovered on a 24-inch sewer main near Chestnut and Walnut.
Mitch (staff) told the board the sinkhole formed around June 17, 2025, on the sewer that runs between Hoddleback and Chestnut along Walnut Street. Staff compared the cost and schedule impacts of open-cut repair versus cured-in-place-pipe (CIPP) lining and concluded that CIPP performed by Inliner Solutions, already mobilized under the existing lining contract, was the most cost-effective and schedule-sensitive option. Using the contractor already on site also avoided greater disruption to the City Engineer’s concurrent road improvements project and met an asphalt-resurfacing deadline of Aug. 11, the staff presentation said.
Mitch described the $149,380.69 figure as an estimate that will be adjusted in a final change order to reflect actual quantities. A motion to approve the change order passed by voice vote.
The board heard that proceeding with this repair now will avoid further disruption to the road work and that the current contract value is not expected to exceed the 20% change-order threshold under existing contract terms.
