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Update on TRTP Construction in Chino Hills and Chino

Update 2/23/2015

During the period February 23 – March 1 construction activities as part of Southern California Edison’s (SCE’s) Tehachapi Renewable Transmission Project (TRTP) will include the following:

Activity Location
Surveying - Throughout the project route
Grading work - South of Eucalyptus Ave (west of Canon Ln)
- South of Garden Ct (east of Lobelia Dr)
- Western Transition Station
Vegetation Bird Net Installation - East of Calle Madrid and west of Chino Hills Parkway
Mainline trenching - South of Garden Court and north of Alder Place
(east and west Lobelia Dr. and Cork Dr.)
(Trenching, including increased truck traffic along adjacent streets)
Trenching at Street Crossings - Maplewood Ave
- Foxwood Rd
- Calle Madrid
- Pipeline Ave
- Lobelia Dr
(There will be street lane closures at these locations)
Vault excavation/installation work - South of Prairieview Cir (west of Lost Trail Dr)
- North of Paseo Del Palacio and south of Calle Bienvenida
(west of Calle Madrid)
- West of Pipeline Ave (south of Yellowstone Cir)
- South of Eucalyptus Ave (west of Canon Ln)
- South of Eucalyptus Ave (west of Avenida Cabrillo)
Vault delivery - South of Prairieview Cir (west of Lost Trail Dr)
- North of Paseo Del Palacio and south of Calle Bienvenida
(west of Calle Madrid)
Horizontal directional drilling (HDD) activities - South of Prairieview Cir (west of Lost Trail Dr)
- South of Garden Ct (west of Cork Dr)
Excavating to verify location and depth of existing utilities (potholing) - Chino Hills Parkway
(There will be temporary lane closures during this work)

This work will take place within the existing utility right-of-way corridor in the cities of Chino and Chino Hills between the west end of Eucalyptus Avenue and the Chino Valley Freeway (71).

Eastern Transition Station

Demolition work at the eastern transition station, located between Pipeline Avenue and the Chino Valley Fwy (71) is underway. 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 give us a call.

Tips for Minimizing Construction Impacts

SCE is committed to minimizing any inconvenience and ensuring public safety during this work. In addition to SCE efforts to minimize the impacts to residents and businesses during construction, here are some simple tips that may help you reduce construction disturbance:

  • Close all windows and doors facing the construction area in order to reduce noise and dust
  • Watch for information updates in the form of mailers, door hangers, etc. to ensure you have the most up-to-date information about construction activities taking place in your area.
  • Cover items such as vehicles and swimming pools

Construction hours are:

Chino Hills locations: 7 a.m. - 7 p.m., Monday – Friday; 8 a.m. – 6 p.m., Saturday

Chino locations: 7 a.m. – 8 p.m., Monday – Saturday

If you have any questions about the scheduled work or other project-related activities, please contact us:

SCE’s 24-hour toll-free line: (877) 795-8787
Email: trtp@sce.com

Questions & Answers

Visual Materials at Project Open House (Oct 2013)


In the News: Chino Hills / Chino Underground Construction




Construction Overview

Constructing the Underground Portion in Chino Hills and Chino

Beginning in early August 2014, SCE and its contractors will begin activities necessary for constructing the Tehachapi project underground in portions of Chino Hills and Chino. Below is a description of the construction activities.

Oct. 2014 Update

What you will see:

  • Clearing of vegetation and any impeding structures within the project area
  • Installation of chain-link fencing along the project area to ensure safety of the public and project personnel during construction
  • Trenching and underground drilling
  • Installation of underground electric transmission wires (500 kilovolt), conduit, vaults and related equipment
  • Installation of two (2) transition stations to enable wires to go from overhead towers to underground conduits at each end of the underground area; each station will be approximately three (3) acres in size, with an 8-foot perimeter wall with some equipment approximately 133-ft in height
  • Installation of two (2) new lattice steel transmission structures, one adjacent to each transition station described above, to feed the overhead wires into the stations
  • Use of large construction equipment, including cranes and drilling equipment
  • Periods of temporary lane closures and traffic control on:
    • Chino Hills Pkwy (between Carbon Canyon Rd and Eucalyptus Ave) and;
    • Pipeline Ave (between Chino Hills Pkwy and Eucalyptus Ave)
Extended periods of lane closures and traffic control
  • Chino Hills Parkway (between Carbon Canyon Road and Eucalyptus Avenue) and;
  • Pipeline Avenue (between Chino Hills Parkway and Eucalyptus Avenue)
Anticipated Construction Period
Approximate dates: Early August 2014 and continuing through 2016
Approximate hours

Chino Hills locations*:
Mon–Fri: 7:00 am–7:00 pm
Sat: 8:00 am–6:00 pm

Chino locations (west of Pipeline Ave)*:
Mon–Sat: 7:00 am–8:00 pm

*Hours are in accordance with city noise ordinance; may include limited 24-hour underground boring as needed

Note: Schedule is tentative and may change depending on weather and other factors, as well as additional regulatory clarification from the CPUC. Construction schedule may change to include extended hours as well as Sunday work.

Tips for Minimizing Construction Impacts

SCE understands that construction may be disruptive to daily activities of residents and area businesses. While dust during construction cannot be completely eliminated, SCE and its contractors are taking steps to minimize potential impacts to residents and businesses. To help minimize dust or noise from these project activities, residents may choose to close windows or doors facing the construction area and cover items such as vehicles and swimming pools.

Thank you for your understanding and cooperation as our project personnel work as safely and quickly as possible to complete these important electric system upgrades.

Contact Us

We’re here to answer your questions. Give us a call, send an e-mail or visit our web site if you have questions about construction related activities. SCE is committed to providing available information to minimize construction impacts to the extent possible.

Project hotline: (877) 795-8787
E-mail: trtp@sce.com
Project web site: www.sce.com/trtp