Pacific Gas and Electric Company Submits Second Monthly Construction Report for Rock Creek-Cresta Hydroelectric Project

Strategic Insights -

Pacific Gas and Electric Company has submitted a second monthly construction report to the Federal Energy Regulatory Commission, detailing the progress made on the drum gate cofferdams for the Cresta and Rock Creek Dam as part of the Rock Creek-Cresta Hydroelectric Project. The report, which covers the month of June 2025, outlines the construction activities undertaken and serves as a requirement mandated by FERC in a letter dated February 8, 2024. The project, with FERC No. 1962, is expected to be completed by January 15, 2026, with the final construction report, including as-built drawings, to be submitted to FERC within the 90-day period following project completion.

Key Takeaways:

  • Pacific Gas and Electric Company has submitted a second monthly construction report to the Federal Energy Regulatory Commission, detailing the progress on the drum gate cofferdams for the Cresta and Rock Creek Dam as part of the Rock Creek-Cresta Hydroelectric Project.
  • The report covers the month of June 2025 and outlines the construction activities undertaken, which will continue throughout the month of July 2025.
  • The project, which is a part of FERC No. 1962, was authorized by FERC in a letter dated February 8, 2024.
  • The final construction report, including as-built drawings, is required to be submitted to FERC within 90 days of project completion, by January 15, 2026.
  • Chris Tomes, dam safety engineer for PG&E, can be contacted at (818) 584-9944 for technical questions, and Andrew Garcia, license coordinator for PG&E, can be contacted at (530) 228-8990 for general questions.
  • The project involves construction activities at Rock Creek and Cresta Din, with specific NATDAM numbers CA00329 and CA00330, respectively.

Statistics:

  • The project has a FERC authorization number of 1962-CA.
  • The project involves two dams: Cresta Dam (NATDAM No. CA00329) and Rock Creek Dam (NATDAM No. CA00330).
  • The final construction report, including as-built drawings, is required to be submitted to FERC by January 15, 2026.
  • Pacific Gas and Electric Company will continue construction work on the drum gate cofferdams through the month of July 2025.

Sources:

  • Pacific Gas and Electric Company. (July 31, 2025). Letter to Frank L. Blackett, P.E., Regional Engineer Federal Energy Regulatory Commission.
  • Federal Energy Regulatory Commission. (February 8, 2024). Letter to Pacific Gas and Electric Company.