Inland Empire Brine Line Reach V Rehabilitation and Improvements

In order to protect the local plants, animals and water quality of the Santa Ana River Watershed, local businesses rely on the Inland Empire Brine Line as an effective way to dispose of salty wastewater.

Businesses produce the wastewater through cooling, manufacturing and water treatment processes. The Brine Line removes 500,000 pounds of salt per day from the wastewater so that it’s safe to enter the Pacific Ocean.

TRC provided construction services for two phases of the Brine Line Reach V improvements project, which helped to preserve and maintain the system.

Phase 1 (Temescal Canyon Road)

The project included inspection of approximately 27,000 linear feet of the PVC pipe with installation of approximately 23,000 linear feet of cured-in-place-pipe (CIPP) and construction of 19 maintenance access structures and replacement of fittings and appurtenances.

Use of trenchless technology was desired for this rehabilitation project as Temescal Canyon is a bypass to the I-15 freeway, making accessibility for the public a key component during these construction activities.

A temporary bypass pipeline was constructed to divert brine line flow while CIPP rehabilitation activities were completed to allow for the agency to remain in operation while construction activities were completed.

Phase 2 (Nichols Road)

The project included construction of approximately 5,100 linear feet of new 32-inch-diameter IPS HDPE pipe, construction of four maintenance access structures and associated fittings and appurtenances.