Visit our interactive project update website to learn more about the North System Renewal Project and the East Phase construction. Stay informed about upcoming construction impacts and activities, and submit a question or comment to the project team. Continue to visit the website throughout the project for timely construction updates and project information.
Improving the safety and reliability of our aging system
Denver Water’s North System brings snowmelt from the mountains through reservoirs, pipelines and a treatment plant to produce clean, great-tasting drinking water. Denver Water is upgrading and modernizing the northern portion of our water system. We are building a new water treatment plant, installing a new pipeline and redeveloping our Moffat Treatment Plant. When finished, the system will be more resilient and adaptable to changing demands for water now and into the future.
Traffic Impacts
Beginning Wednesday, June 9, Denver Water’s contractor Garney Construction begin activity to replace a portion of the Northwater Pipeline. The work will require a full road closure at 26th Avenue and Benthaven. The closure will be in place 24-hours a day, seven days a week, lasting approximately three weeks. Traffic control measures and flaggers will be in place to guide motorists around the work zone. Motorists should use caution when driving in the impacted areas and follow detour signs accordingly.
Road Closure Advisory
The following road closures and traffic control are currently in place or upcoming (click on the links below to see detour maps):
- West Applewood Knolls Drive between Taft Court and Simms Street (May through August 2021).
- Benthaven Drive (June through August 2021).
Denver Water’s contractor, Garney Construction, will make every effort to complete this project within the stated timeframe. However, delays due to unexpected events and weather may happen. Working hours will be 7 a.m. to 7 p.m., Monday through Saturday.
Access to homes and businesses will be maintained during construction. Residents and businesses will continue to have access to mail and package delivery, emergency services and trash pick-up.
Traffic control measures and flaggers will be in place to guide motorists around the work zone. Motorists should use caution when driving in the impacted areas.
System Project Map
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By the numbers
80
8.5
3
Why it's important
Denver Water’s North System was constructed in the 1930s, when the surrounding area was mostly farmland. Now, 80 years later, the North System is reaching the end of its lifespan.
The North System’s pipelines and valves need to be replaced. The new treatment plant will feature updated technology, and the existing Moffat Treatment Plant will be repurposed into a distribution site.
Project components
Northwater Treatment Plant
We are building a new, state-of-the-art water treatment plant next to Ralston Reservoir, north of Golden in Jefferson County. The Northwater Treatment Plant will be capable of treating up to 75 million gallons of water a day and will be equipped with disinfection technology that will provide more flexibility to react to changes in water quality.
Northwater Pipeline
We are installing a 66-inch diameter pipeline, replacing one of the two existing pipeline, running 8.5 miles between Ralston Reservoir and the Moffat Treatment Plant. The new pipeline will transport treated water from the new Northwater Treatment Plant to the Moffat Facility for distribution.
Moffat Treatment Plant
The Moffat Treatment Plant will continue to treat water although at a reduced capacity. Water treated at the Northwater Treatment Plant will be sent to the Moffat facility, via the Northwater Pipeline, where it will be stored and distributed to customers.
How it affects our customers
These improvements will help maintain reliable, safe drinking water and avoid service failures that could adversely impact neighbors.
Being a good neighbor: Denver Water is committed to maintaining safe worksites and mitigating noise, dust, traffic and other construction impacts on our neighbors. We aim to reduce delays and inconvenience and communicate well in advance so commuters, residents and neighbors can plan accordingly.
Anticipated timeline*
*Construction started October 2017. As with any construction project, the schedule is dependent on a number of factors. It will be updated as construction progresses.