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North Huron Interceptor Sewer Replacement Project

NorthHuronSewerProjectMay2021The City of Westminster is investing $16 million in sewer improvements for current and future customers in the North Huron corridor of the city. This project is funded by the Westminster Economic Development Authority's North Huron Urban Renewal Authority and ratepayer funds are not being used.

Project Overview

New sewer pipe will be installed in W 136th Avenue, N Huron Street, Orchard Pkwy, and 134th Avenue. Sewer mains in this area are aged, difficult to maintain, and are at their design capacity and need to be replaced.


Fall 2020: Sewer main replacement was completed near the St. Anthony North Health campus and transitioned to the city's wastewater treatment facility.

January 2021: Crews began construction of the interceptor sewer in Orchard Pkwy near the wastewater treatment facility and work continues to progress north to West 136th Ave. This work phase is anticipated to be completed in September 2021.

February 2021: Boring operations began at the intersection of West 136th Ave and Orchard Pkwy and traffic was diverted to the north half of 136th Ave to accommodate the work area. Bore work at this location will be completed late June 2021, however traffic will continue to be diverted on 136th Ave while open cut construction occurs along the south half of West 136th Ave. Construction on West 136th Ave is anticipated to continue through September 2021.

June 2021: Additional traffic control is anticipated in the vicinity of West 136th Ave and N Huron St while a bore is conducted in the intersection. Please anticipate additional delays due to restricted traffic flow.

Recent wet weather has caused the construction schedule to be delayed. The schedule above is subject to change and will be updated as new information is received.


Businesses impacted by this work will be notified in advance and disruption to water and sewer service will be minimal. Expect traffic delays during construction and take alternate routes if possible.

The pedestrian trail segment south of Walmart connecting Huron Street to the pedestrian underpass at I-25 will be closed starting in November and extending through September 2021. Portions of the trail have been removed and heavy equipment is operating in this construction area. Pedestrians are asked to stay clear of the trail closure and follow the posted detours.

The city's RV Dump Station at the Big Dry Creek Wastewater Treatment Facility will remain closed through September 2021. Updates for the reopening of the dump station will be provided at the RV Dump Station link as they become available.

Construction Notification

Customers and businesses impacted by water or sewer service will be notified in advance of the work. Commuter traffic will be notified of modifications to traffic flow with message boards, traffic control devices, website updates, and on the city's social media platforms.

The city strives to maintain a high level of service to our water and sewer customers. Thank you for your patience!



For general questions, concerns or comments, please contact the city's Project manager, Andy Walsh, P.E at 303-658-2563or awalsh@cityofwestminster.us.