Southern California Edison Submits Monthly Construction Report for Big Creek Dam No. 1 LLOV Replacement Project

Strategic Insights -

The Southern California Edison Company has submitted a monthly construction report to the Federal Energy Regulatory Commission (FERC) regarding the Low-Level Outlet Valve (LLOV) Replacement Project for Big Creek Dam No. 1. The report, dated October 28, 2025, provides an update on the construction progress for the month of September 2025. The report has been reviewed and approved by the Dam & Public Safety Department at Southern California Edison. The company has submitted the report in accordance with a letter from FERC dated August 16, 2024, which requested that Southern California Edison submit monthly construction reports.

Key Takeaways:

  • The report is the third monthly construction report submitted by Southern California Edison to FERC for the LLOV Replacement Project for Big Creek Dam No. 1.
  • The project is part of the Big Creek No. 1 and No. 2 Hydroelectric Project (FERC No. 2175).
  • The report covers the construction work activities completed during the month of September 2025.
  • The report has been reviewed and approved by the Dam & Public Safety Department at Southern California Edison.
  • The company appreciates FERC's continued support of its efforts at the Big Creek Dam No. 1 facility.
  • The report includes an enclosure, the Dam 1 LLOV September 2025 Monthly Construction Report (CUI//CEII).
  • The document has been filed electronically with the Federal Energy Regulatory Commission on October 28, 2025.

Statistics:

  • The report is the third monthly construction report submitted to FERC.
  • The project is part of the Big Creek No. 1 and No. 2 Hydroelectric Project (FERC No. 2175).
  • The report covers the construction work activities completed during the month of September 2025.
  • The report includes an enclosure, the Dam 1 LLOV September 2025 Monthly Construction Report (CUI//CEII).
  • The document has been filed electronically with the Federal Energy Regulatory Commission on October 28, 2025.
  • The FERC project number is 2175.
  • The document ID is 21B3E540-50F6-4084-B07D-BBCAC58FE220.

Sources:

  • August 16, 2024, Letter from Mr. Frank L. Blackett, P.E., Regional Engineer, Federal Energy Regulatory Commission to Mr. Wayne P. Allen, Principal Manager, Southern California Edison, titled, "Huntington Lake No. 1 Dam Low-Level Outlet Valve Replacement Project Response to Request for Work Authorization Comments".
  • October 28, 2025, Document submitted by Southern California Edison to the Federal Energy Regulatory Commission, titled, "Dam 1 LLOV September 2025 Monthly Construction Report (CUI//CEII)".
  • https://elibrary.ferc.gov