WENATCHEE — The city of Wenatchee has made a change order for its Pershing and Poplar Streets sewer extension project due to trenching problems, raising the total project cost more than $1 million.
The project will add 2,300 feet of new piping to extend sewer service to 51 properties on Pershing and Poplar and Mulberry Streets for property owners who want to switch from septic systems.
The change order with Matia Contractors, Inc. is $112, 667, which brings the project cost to $1,048,449. The Wenatchee City Council approved the update at its meeting Thursday.
Crews have dug 13-foot deep trenches in both Poplar and Pershing Streets. Poplar Street is around 5-7 feet wide and Pershing is 10-15 feet wide. The soil holding up the walls in the trenches are not holding up as expected, said city project engineer Ryan Harmon.
As crews dig deeper, the walls of the trenches have gotten wider as the sand and cobble soils have not been able to hold up, said Harmon. To overcome this obstacle and for the safety of the workers, more excavation is needed to secure those walls, Harmon said. The new change order sets the requirements for the roadway rebuild and will result in new pavement.
Construction took a break in November for winter conditions and will resume this week and should finish mid-April.
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