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HomeMy WebLinkAbout05.23.2024 Board Correspondence - FW_ Progress Report submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al.From:Clerk of the Board To:Bennett, Robin; Clerk of the Board; Connelly, Bill; Cook, Holly; Cook, Robin; Durfee, Peter; Jessee, Meegan; Kimmelshue, Tod; Kitts, Melissa; Lee, Lewis; Pickett, Andy; Ritter, Tami; Stephens, Brad J.; Sweeney, Kathleen; Teeter, Doug; Zepeda, Elizabeth; Loeser, Kamie Cc:Nevers, Dawn Subject:Board Correspondence - FW: Progress Report submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al. Date:Thursday, May 23, 2024 8:19:02 AM Please see Board correspondence - -----Original Message----- From: 'FERC eSubscription' <eSubscription@ferc.gov> Sent: Thursday, May 23, 2024 6:36 AM Subject: Progress Report submitted in FERC P-803-000 by Pacific Gas and Electric Company,et al. .ATTENTION: This message originated from outside Butte County. Please exercise judgment before opening attachments, clicking on links, or replying.. On 5/23/2024, the following Filing was submitted to the Federal Energy Regulatory Commission (FERC), Washington D.C.: Filer: Pacific Gas and Electric Company Pacific Gas & Electric Company (as Agent) Docket(s): P-803-000 Lead Applicant: Pacific Gas and Electric Company Filing Type: Progress Report Description: Pacific Gas and Electric Company submits brief final construction report re eroded berm repair project for Hendricks Canal Station 402+03, part of the DeSabla-Centerville Hydroelectric Project under P-803. 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Box 28209 Oakland, CA 94604 May 22, 2024 Via Electronic Submittal (E-File) Frank L. Blackett, P.E., Regional Engineer Federal Energy Regulatory Commission Division of Dam Safety and Inspections 100 First Street, Suite 2300 San Francisco, CA 94105-3084 RE: DeSabla-Centerville Hydroelectric Project, FERC No. 803-CA Hendricks Canal Station 402+03 Eroded Berm Repair – Final Construction Report Dear Frank L. Blackett: This letter presents Pacific Gas and Electric Company’s (PG&E) brief final construction report for the eroded berm repair project for Hendricks Canal , which is part of PG&E ’s DeSabla-Centerville Hydroelectric Project, Federal Energy Regulatory Commission (FERC) No. 803. In a letter dated February 15, 2024 , FERC authorized PG&E to proceed with the project and requested that PG&E file a brief final construction report for the project within 90 days of construction completion. The construction project was completed on February 28, 2024. Enclos ure 1 of this letter provides the final construction report , which includes the completed construction activities and photo documentation . Should you have technical questions concerning this matter, please contact Gavin Rhoads, project engineer for PG&E, at (530) 370-6685. For general questions, please contact Megan Young, senior license coordinator for PG&E, at (530) 335-5602. Sincerely, Kyle Ingvoldsen, P.E. Supervisor, Power Generation Project Engineering Enclosure: 1. Henricks Canal Repair Eroded Berm Final Construction Report, prepared by PG&E and dated May 2024 Document Accession #: 20240523-5046 Filed Date: 05/23/2024 ENCLOSURE 1 Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report HENDRICKS CANAL REPAIR ERODED BERM DeSabla-Centerville Hydroelectric Project, FERC No. 803-CA FINAL CONSTRUCTION REPORT Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report TABLE OF CONTENTS PAGE 1. GENERAL ............................................................................................................ 1 1.1 Background .............................................................................................. 1 1.2 Summary of Construction Chronology .................................................. 1 1.3 Original Structure Findings .................................................................... 1 2. FOUNDATIONS ................................................................................................... 1 3. EMBANKMENTS ................................................................................................. 2 4. CONCRETE WORK ............................................................................................. 2 5. ANCHORS ........................................................................................................... 2 6. INSTRUMENTATION ........................................................................................... 2 APPENDIX A. Photographs Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report 1 1. GENERAL This final construction report (FCR) is regarding Pacific Gas and Electric Company’s (PG&E) project (the project) to repair an eroded section of the berm of Hendricks Canal at approximately Station 402+03 or north 39.892089⁰, west 121.580271⁰ which is part of PG&E’s DeSabla- Centerville Hydroelectric Project, Federal Energy Regulatory Commission (FERC) No. 803 .The purpose of this FCR is to include a summary of pertinent construction information in a concise form. This FCR has been prepared in compliance with the FERC requirements noted in the authorization letter for this project, dated 02/15/2024. 1.1 Background The purpose of this project was to repair the eroded section of the berm of the canal, improving reliability of the canal and removing a possible tripping hazard. Key construction milestones are listed below: • Construction Start: February 28, 2024 • Construction Finish: February 28, 2024 Construction progress photos are in Appendix A. 1.2 Summary of Construction Chronology A summary of the major construction activities is presented below. February 28, 2024 • Mobilized to site. • Removed debris and loose soil from eroded berm area. • Backfill material was excavated from hillside abutting berm. • Backfill placed in 6-inch loose lifts. • Backfill compacted with jumping jack compactor with a minimum of two passes. • Placed waddles and straw for erosion protection. • Demobilize from site. 1.3 Original Structure Findings Not applicable to this construction project. 2. FOUNDATIONS This section is not applicable to this construction project. Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report 2 3. EMBANKMENTS The embankment construction included returning the eroded berm to its original geometry. Native soil was excavated with hand tools from the hillside abutting the berm. The Responsible Engineer was onsite during all construction activities and ensured that backfill and compaction was performed per the FERC-authorized Work Plan. The adhered-to specifications are shown below: • Prior to backfill placement the subgrade was free of debris and loose soils. Backfill was benched to help create good bonding and reduce the likelihood of a slip surface. • The bottom of the excavation was scarified, moisture conditioned and recompacted prior to backfill placement. • The backfill was free of roots, rocks, trash, organics, or other deleterious materials. • Backfill was placed in lifts no greater than 6-inch of uncompacted thickness. The material was moisture conditioned and compacted using jumping jack style compactor with a minimum of two passes. • Each lift of backfill was compacted until firm and unyielding and approved by the onsite engineer prior to placing subsequent lifts. 4. CONCRETE WORK This section is not applicable to this construction project. 5. ANCHORS This section is not applicable to this construction project. 6. INSTRUMENTATION This section is not applicable to this construction project. Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report APPENDIX A PHOTOGRAPHS Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report PHOTO 1: February 28, 2024, Berm Prior to Construction PHOTO 2: February 28, 2024, Berm Cleared of Debris Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report PHOTO 3: February 28, 2024, Crew Backfilling Berm with Native Soil Meeting Specifications PHOTO 4: February 28, 2024, Crew Compacting Backfill Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Hendricks Canal – Repair Eroded Berm, FERC No. 803 May 2024 – Final Construction Report PHOTO 5: February 28, 2024, Construction Complete Document Accession #: 20240523-5046 Filed Date: 05/23/2024 Document Content(s) PGE20240522_803_HC_Eroded_Berm_FCR.pdf ....................................1Document Accession #: 20240523-5046 Filed Date: 05/23/2024