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Morena Northern Pipelines and Tunnels

Satellite view of Morena Northern Pipeline Alignment and Tunnels
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The Morena Northern Pipelines and Tunnels project will connect to the Morena Pipelines Middle Alignment to the south and the North City Water Reclamation Plant to the north.

This project includes portions of two 10.5-mile pipelines: one 48-inch wastewater pipeline, which will carry wastewater north to the North City facilities for purification, and one 30-inch brine line that will carry the biproduct from water purification south to the Point Loma Wastewater Treatment Plant. This project begins on Genesee Avenue and Appleton Street and continues on Genesee Avenue, Nobel Drive, Towne Centre Drive and Executive Drive. Tunneling will be completed at Genesee Avenue and State Route 52 (San Clemente Creek), at Genesee Avenue and Rose Creek Canyon, and under Interstate 805.

Satellite view of Morena Northern Pipeline Alignment and Tunnels

Construction Schedule

Project Started: June 2021

Anticipated Completion: 2024

Construction for this project will primarily take place on weekdays on weekdays at night from 7 p.m. to 5 a.m., except on Nobel Drive when construction will occur from 7 a.m. to 4 p.m. Tunneling work will be 24/7 with adherence to noise requirements.

What to Expect During Construction

  • Major intersections, such as Governor and Genesee; Genesee and Nobel; and Towne Centre Drive and La Jolla Village Drive, will be completed in stages so the intersections can remain open
  • One lane of southbound traffic will be maintained on Genesee
  • Access and terrain maintained for Rose Canyon trail
  • One-way westbound traffic will be maintained on Nobel Drive during construction hours
  • One lane in each direction will be maintained on Towne Centre Drive
  • Access to Excalibur Way will be maintained throughout construction
  • West of Judicial Drive, work will be on the westbound side of Executive Drive
  • East of Judicial Drive, work will be on the eastbound side of Executive Drive

Informational Materials

Background Information

Construction Notices

Community Presentations