Current Work: 

LOCATION: Intersection of Baker St. and Airway Ave.

• What: Excavation and pipeline replacement work
• When:  Continuing the next several weeks and should be completed by mid to late July
• Work Hours: Night work from 8 p.m. – 6 a.m., Monday – Friday
• What to Expect: 
  • Traffic control with reduced lanes with one way traffic at a time.
  • Flaggers will be onsite to assist with directing traffic.
  • Increase in activity and noise levels
  • Please drive with caution

LOCATION: Airway Ave. and Airport Loop Dr.

• What:  Pipeline rehabilitation by lining the pipe using the cured-in-place pipe (CIPP)  method. This work will occur in phased segments.
• When:  Ongoing and continuing the next several weeks with the next segments.
• Work Hours:  CIPP activities will require 24/7 continuous work
• What to Expect:
  • Odors caused by the styrene in the curing process may be noticealbe in the immediate area but are temporary.
  • Traffic control in work areas
  • Increase in activity and noise levels

As part of the CIPP process, OC San project contractors will be running water hoses into the local manholes near the construction site to discharge water from the project. Hoses will also be connected to fire hydrants for water. Some parking spaces may be coned off to route the hoses.

LOCATION:  3194 & 3199 Airport Loop Drive

• What: Cul-de-sac closure
• When: Current and lasting several months
• Impacts:
  • No driving access to the end of the cul-de-sac
  • Detours through the business complex may be necessary but access to businesses will always be available.

*All dates and times are subject to change due to operational factors or inclement weather.

About Cured-in-Place Pipe (CIPP)

A pre-measured liner is delivered in a refrigerated truck and inserted through a tall tower approximately 15 – 20 ft high into the existing pipeline through the recently excavated access pits.  After the liner has been inserted, it is filled with water heated to a certain temperature and cured for approximately 36 hours. When fully cured, the liner now acts as the new pipeline. Once the CIPP operation begins, it cannot be stopped until completed, thus requiring the 24/7 continuous work. Crews will be onsite for monitoring throughout the entire process.

Project Description

This project will rehabilitate two parallel regional sewer pipelines, along a 1-mile stretch on Airway Avenue and Airport Loop Drive in the City of Costa Mesa, near the John Wayne Airport. The rehabilitation of the two pipelines must occur one at a time and will take place in separate phases.

Project elements also include improvements at the Main Street Pump Station.  See map below (blue line).

Construction Schedule

Other Information

For information about a nearby project in the City of Costa Mesa, please visit Costa Mesa Sewer Rehabilitation along I-405 Projec.t