Weld County approves temporary closure of County Road 17 for Thornton water transmission work

The Weld County Board of County Commissioners on March 5 approved a temporary closure of County Road 17 between County Road 6 and County Road 8 from March 24 through May 23 to allow Thale Construction, on behalf of the City of Thornton, to install a 42-inch water transmission line and reconstruct the road.

"Thale is requesting this closure to begin on March 24 and go through May 23. The reason for the length of this closure is that, they will be performing 6 crossings to install the 42 inches water transmission line for the City of Thornton. They will also be reconstructing the entire mile of road, resurfacing it, as part of their agreement," said Amy Mucchi of Weld County Public Works.

Public Works said the contractor will deploy message boards near the detour, coordinate the closure with an existing detour for the County Road 613 closure to limit confusion, and place topical magnesium chloride on the one mile of gravel within the detour if dust becomes an issue. Staff also said resident notifications will be sent, and the contractor is coordinating with the postmaster on mail deliveries and with the local school district on bus routes.

A motion to approve the temporary closure passed by voice vote. The board recorded the approval as a resolution; the department will oversee implementation and coordination with affected residents and agencies.

Why it matters: The closure will interrupt a local route for roughly two months, requiring detours, mail and school-service coordination, and temporary dust-control measures. Residents in the detour corridor were notified to expect further communications from the contractor and county staff.

The board handled the closure as routine business and approved the resolution by unanimous voice vote.