Ongoing Work:

Construction is anticipated to start this coming spring.  In preparation for the start of construction, manholes along the project area will be visited to take field measurements in preparation of rehabilitating the pipeline. 

• Work Hours:  8 a.m. – 5 p.m., Monday – Friday

Project Description:

This upcoming project will rehabilitate approximately 4 miles of the regional sewer pipeline that runs along the I-405 freeway in the City of Costa Mesa.

Project elements include the rehabilitation of gravity sewer pipelines using the cured-in-place pipe method, manhole structure rehabilitation, and manhole access improvements. The project also includes the rehabilitation of four sewer pipelines that cross the I-405 freeway.

Construction Schedule: 

Starting spring 2024 and lasting approximately 1.5 years.

Keep Informed:

Continue to follow this page as construction is anticipated to start on the project in the next several months.  Sign up for e-notifications to stay informed about this project by subscribing and selecting the “Costa Mesa Sewer Along the I-405” subscription topic.

Other Information: 

For information about nearby OC San construction work in the City of Costa Mesa, please visit Airway-Airport Loop Sewer Rehabilitation.