Cougar Creek Sewer Rehabilitation

The District will be performing proactive maintenance and rehabilitation of the existing sewer line in Cougar Canyon between NW 99th Street and NW 115th Court. Construction is anticipated to begin in Summer 2022.

Current Project Activities

Surveying and field investigation is being conducted along the Cougar Creek corridor in Spring 2021 to support scoping, design and permitting for the rehabilitation project.

Highway 99 Sewer South Replacement Project Map

Tentative Schedule

Tentative Schedule Graphic

Frequently Asked Questions

Click the headings below for more details.

The Cougar Creek Sewer is a 15-inch diameter concrete sewer pipe that serves a large part of the District’s service area within the Cougar Creek East, West and North basins. It’s located along Cougar Creek at the bottom of Cougar Canyon, is more than 10,000 feet long and was originally constructed in 1979.

The sewer pipe is more than 40 years old and showing signs of age. The rehabilitation project will provide necessary repairs to extend the life and ensure the integrity of the existing pipe. This will enable the District to provide reliable sewer service to our customers for many years to come.

In the future, additional improvements may be made in conjunction with Clark County’s long-term creek restoration plan.

The project is anticipated to be advertised for bid in early 2022 with construction complete in Fall 2022.

Rehabilitation of the sewer pipe will extend the life of the existing pipe and ensure that customers have access to safe, reliable, cost-effective sewer services for years to come. The proactive approach delivers greater value to customers and minimizes potential impacts.

The District selected ultra-violet cured-in-place pipe (CIPP) technology as the method of rehabilitation for the pipe. This trenchless solution uses proven technology that is well-suited for work in hard to access and sensitive areas like Cougar Creek. The solution does not require excavation, which will protect the environment and minimize the impact on neighbors, while saving customers money.

To rehabilitate the existing pipe, crews insert a resin impregnated liner inside the existing pipe. The liner is then inflated and exposed to ultraviolet light to “cure” or harden it. This liner forms a solid, permanent surface inside the existing pipe that restores the pipe to like new conditions.

For more information about CIPP technology, click here.

The District selected trenchless technology in order to minimize the environmental impacts of the project. Trenchless technology will reduce the project’s footprint and eliminate the need for excavation in environmentally sensitive areas. It may also reduce the duration of the project.

In addition, the project will be designed and permitted to meet all relevant standards.

This project should have minimal impact on residents and traveling public. However, in some instances, access may be needed from private property along Cougar Creek. In those cases, affected property owners will be directly contacted to obtain permissions and arrange for access.

To keep neighbors up-to-date, we are providing proactive communications throughout the process to keep neighbors informed about upcoming work and project progress.

District does not anticipate any impacts to sewer service. Existing services will remain in operation while the pipe is being rehabilitated.

This project is funded through revenue from sewer rates. This is standard practice for the rehabilitation or replacement of existing assets.