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TRTP Undergrounding
TRTP Hotline Website and Email Card

Southern California Edison (SCE) has resumed work in the TRTP right-of-way. SCE has hired multiple contractors to start the underground construction in multiple locations in order to keep the project on time to meet deadlines to deliver renewable energy. It is anticipated that work will continue through late 2016 / early 2017.

SCE Undergrounding Update Presentation:
Southern California Edison (SCE) presented an update on the undergrounding plans for the Tehachapi Renewable Transmission Project (TRTP) at the Tuesday, September 23 City Council meeting. 

Undergrounding Construction Update Video (September 23, 2014) 

Undergrounding Construction Update PowerPoint

Southern California Edison TRTP 3rd Quarter Newsletter

Construction Update:
November 3 – 9th, 2014

Construction activities as part of Southern California Edison’s (SCE’s) Tehachapi Renewable Transmission Project (TRTP) will include the following: 

  • Surveying and staking throughout the project route
  • Clearing of vegetation and grubbing between Canon Lane and Calle Madrid; and between Lobelia Drive and Pipeline Avenue
  • Installation of chain-link fencing along the edge of the utility right-of-way from Foxwood Road to Morningfield Drive, and Lost Trail Road
  • Implementation of Best Management Practices (BMP’s) and monitoring project site safety, project materials, and environmental compliance in accordance with the project’s Storm Water Pollution Prevention Plan throughout the project route
  • Grading work from the Western Transition Station (WTS) to a location west of Western Hills Golf and Country Club; and between Lost Trail Road and Morningfield Drive
  • Trenching work on Avenida Cabrillo, Calle Madrid, Maplewood Drive, and Foxwood Road - there will be street lane closures at these locations
  • Demolition work at the Eastern Transition Station (ETS), between Pipeline Avenue and the 71 Fwy

Upcoming Work 
Crews will soon begin the demolition work at the eastern transition station, located between Pipeline Avenue and the Chino Valley Fwy (71). There will be periods of night work at this location in order to reduce construction noise impacts to the Montessori School of Chino Hills.

*Please Note: Schedule is tentative and may change depending on weather and other factors.

A water truck will be on the utility right-of-way to help control fugitive dust. If at any time you have concerns, please call SCE at (877) 795-8787. While dust is a part of construction and cannot be completely eliminated, SCE implements measures to minimize impact and to ensure compliance with dust level requirements. A water truck will be used in the utility right-of-way to minimize such dust. 

Horizontal Directional Drilling
Horizontal Directional Drilling (HDD) is a method of installing underground utilities when trenching work is impractical to perform.  The 500 kV underground project in Chino Hills will require two HDD sites along the route.  Southern California has developed an informational brochure that provides additional information.  HDD construction activity is anticipated to begin in November of 2014 and continue through the end of 2015.

Construction hours are:
Chino Hills locations: 7:00 a.m. - 7:00 p.m., Monday – Friday; 8:00 a.m. – 6:00 p.m., Saturday
Chino locations: 7:00 a.m. – 8:00 p.m., Monday – Saturday  
Tips for Minimizing Construction Impacts 
SCE is committed to minimizing any inconvenience and ensuring the safety of both the public and project personnel during this work. In addition to SCE and contractor efforts to minimize the impacts to residents and businesses during construction, here are some simple tips that may help you reduce construction disturbance:

  • Close windows and doors facing the construction area in order to reduce noise and dust
  • Watch for project information updates to ensure you have the most up-to-date information about construction activities taking place in your area.

Stay Informed and Encourage your neighbors to sign up to receive updates, too! 

SCE Town Hall Was Held on October 9, 2013
Southern California Edison held a Town Hall Meeting back on October 9, 2013 regarding the Chino Hills Undergrounding of the Tehachapi Renewable Transmission Project.

If you missed the Town Hall Meeting or attended and have questions about the project, please call the TRTP project hotline at (877) 795-8787 and leave a message with your specific question and your call will be returned.  
TRTP History 

TRTP Chino Hills Undergrounding Project Area
Construction Area Map