Construction will continue downtown through the summer as crews continue work to replace underground tubes that carry Cache Creek across Jackson.
The project will take “a few different phases,” said Town Engineer Brian Lenz. The first phase, underway, consists of about 700 feet running along Gill Avenue, King Street and Deloney Avenue.
Since earlier this month, workers have been excavating the existing stormwater pipe along Gill, prompting traffic control and delays between Cache Street and Willow Street.
With the Gill Avenue stretch complete, “for a while we’ll be on King Street and generally out of people’s way,” Lenz said.
Then the project will reach Deloney Avenue and continue in the direction of the public bathrooms. To accommodate construction during that phase, Lenz said, the START bus stop will move to the east side of Willow Street.
Lenz estimated the Deloney phase will run through late August or into early September. After that, work will end next spring.
The existing tube, installed in a patchwork manner over many years, runs under private property in a number of spots. The town wants to reroute it to public property above ground, and to replace it with 48-inch-diameter pipe throughout the tunnel.
The contract for this phase, with Western Municipal Construction of Wyoming, cost $838,000, Lenz said.
The town is seeking $2 million on this fall’s specific purpose excise tax ballot to upgrade the Cache Creek tube, with the goal of improving stormwater quality before it flows into Flat Creek.