Sierra Nevad​​a region

Major initiatives are the large projects that SN is currently involved in. As new projects are added, and existing ones completed, you will find current information and updates in this area.

Environmental impact​​ statement—EIS

• ​Wildfire Risk Reduction, Reliability, and Asset Protection (WRAP) Project​​

• Colusa-Sutter (CoSu) transmission line project

• San Luis transmission project

• Sacramento area voltage support

• Trinity PUD interconnection project
  

• Alternative intake project transmission line and interconnection

• Delta-Mendota Canal/California aqueduct intertie (PDF - 17MB)

• Sutter power project

Environmental ass​essment—EA

• Beale-WAPA Interconnection Project (BWIP)

• San Joaquin Valley right-of-way maintenance project

• North area right-of-way maintenance project

• Sacramento Va​lley right-of-way maintenance project

Categorical ​​exclusions—CX 

2023

• Trinity-Off-ROW-Tree-Removal-CX-2023​ (390KB)​
  

• Cottonwood-Substation-Section-G-Property Acquisition-CX-2023 (1890KB)​
  

• Olinda-Tracy 3 Landing Zones for Towers 92-1 and 17​4-2 and 164-4 (193KB)
  

2​022

• Captain Jack Olind​a Landing Zone for Tower 497 Repair​ (177KB)
  

• Path 1​5 2022 Access Road Repairs (183KB)
  

• Malin-Ro​und Mountain Tower 71-8 Spacer Replacement Landing Zone​ (176KB)
  

• Captain Jack O​linda Spacer Replacement Helicopter Landing Zones (2,529KB)
  

• Olin​da Tracy Tower 166-1 Landing Zone  (327KB)
  

• Washoe Project Rate Adjustment​ (329 KB)
  

• Hurley Tracy Insulator Replacement Landing Zones (320 KB)

2​​021​

• Trinity Public Utility District ​Fiber Sharing (2MB)
  

• Path 15 2021 Access Road​ Repairs (329KB)

• COTP Mt. O​so Communication ​Site Repairs​ (321KB)

• Airport-C​ottonwood 230-kV Tower 9/4 Off-ROW Tree Removal (2MB)
  

• Trinity-Weaverville and Trinity-Carr Off-ROW Tree Removal​ (3MB)

• Captain Jack-Olinda 500-kV​ Tower 479 Off ROW Tree Removal (2MB)

• ​Captain Jack-Olinda 459 Spacer Replacement Landing Zone (PDF 2MB)
  

• Airport-Cottonw​ood 230-kV Tower 14/1 Off ROW Tree Removal​ (PDF 2MB)

• Carr-Keswic​k Tower 4/4 Replacement Project (PDF 224KB)​
  

• CAR KE 23​0-kV Off ROW Weed Control CX-2021  (PDF 2MB)
  

• Friant ​Tap and Columbia Mowry 12-kV Lines Vegetation Management (PDF MB)
  

• COTP Microwave Rad​io Antenna Installation at RAH and OSO​​ (PDF 2MB)
  

• Folsom Ros​eville Off-ROW 2/2 Hazard Tree Removal (2 MB)
  

• ​Lawrence Liv​ermore to 424 ROW Vegetation Removal (PDF 2.46MB)
  

• Byron-Bethany 69-kV ROW Vegetation Removal​ (PDF 2.44 MB)

202​​​0

• 2020 Path 15 500-kV Transmission Line Access Road Erosion Repair (PDF 336 KB)
  

• Carr-Keswick Tower 4/4 Replacement Projec​t (PDF 81 KB) 

• Rate Adjustment and Sales of Surplus Energy Products, 2021-2024​ (PDF 73 KB)​
  

• Tree Trimming for CVP#3 Comprehensive Specification 200101 (PDF 2 KB)​​
  

• Trinity Off-ROW Hazard Tree Removal (PDF 2 KB)​
  

• Open Access Transmission Tariff (OATT) Revision 20-01​​ (PDF 70 KB)
  

20​​​​19

• Trinity off-ROW tree removal (PDF 214 KB)

• Path 15 Access Road Repairs​ (PDF 210 KB)​

• Sierra Nevada Exploration of Energy Imbalance Market​ (PDF 1 MB)

• Keswick Substation New Access Road Project (PDF 67 KB)

• Off-ROW hazard tree removal: Folsom-Nimbus (PDF 2 MB)

• Streaming HD Video, Orthophotography, Still Photography, and LiDAR Project (PDF 76 KB)

• Access road erosion repair along the Path 15 500-kV transmission line (PDF 717 MB)

• Pleasant Valley Substation Pole Replacement and Switch Installation Project (PDF 4 MB)

201​​8

• Malin-Round Mountain off right-of-way tree removal (PDF 2 MB)

• Osprey nest platform installation at New Melones Lake (PDF 744 KB)

• Spring Creek-Keswick Fiber Optic Cable install (PDF 625 KB)

• Keswick Substation video monitoring install (PDF 565 KB)

• Livermore Substation Sanitary Facility upgrades CX​ (PDF 2 MB)

• Carr Substation Security Upgrades Project CX​ (PDF 2MB)

• Hazard Tree Removal: Round Mountain-Cottonwood and Keswick-Olinda Transmission Lines (PDF 388 KB)

20​​17

• Folsom Lake Dam Substation Security Upgrades Project  (PDF 3 MB)

• Path 15 2017 Access Road Erosion Repair CX (PDF 3 MB)

• New Melones Substation Security Upgrades (Card Reader) Project (PDF 602 KB)

• Westlands Pump Installation Project CX (PDF 937 KB) 

20​​16

• Trinity-Weaverville Off-ROW Tree Removal​

• Grapevine Pass Access Road Project CX  (PDF 16 KB)

• Trinity-Weaverville Off-ROW Tree Removal  (PDF 2.90 MB)

• DOE Environmental Review for Long-Term Power Purchase (2018-2022) CX  (PDF 2 MB)

• Natomas Community Gardens Access Road CX  (PDF 4 MB)

• Western Sierra Nevada Power Marketing Program 2025 (PDF 767 KB)

• Grapevine Pass Communications Project (PDF 2 MB)

• Keswick-Airport Towers 3/2 and 3/3 Access Roads (PDF 3 MB)

• 2016 Access Road Erosion Repair Along the Path 500 kV T-Line (PDF 2 MB)

201​​​5

• Contra Costa soil testing and equipment upgrades CX (PDF 5 MB)

• Bear Spring Microwave Site Firebreak Clearing (PDF 4 MB)

• Elverta Washrack, Paving, and Drainage Repair Categorical Exclusion (PDF  4 MB)

• Malin-Round Mountain Emergency Off-ROW Tree Removal (PDF 4 MB)

2​​014

• 2014 access road erosion repair along the path 15 500 kV transmission line (PDF 6 MB)

• COTP river crossing tower painting project CX (PDF 4 MB)

2​​013

• Cottonwood-Roseville OPGW project CX (PDF 6787 KB)

201​2

• Path 15 access road maintenance-2012 (PDF 3.2 MB)

2011​​​

• Off ROW hazard trees-Trinity-Weaverville 60kV (PDF 725K B)

• Maxwell-O'Banion OPGW (PDF 3.3 MB)

• EMF remodel (PDF 2.37 MB)

• Red Bluff pumping plant 60 kV interconnection project (PDF  585 KB)

• Roseville Elverta (RSC-ELV) OPGW replacement project (Word 63 KB)

20​​10

• Eastshore Trail construction CX (PDF 1.15 MB)

• Laurel and Rose CX (PDF 453 KB)

• Rock Slough pole replacement (PDF 2.17 MG)

• Vegetation management-CX100501 (PDF 200 KB)

• Vegetation management-CX100502 (PDF 186 KB)

• Culvert cleanout-CX100503 (PDF 156 KB)

• Tracy double breaker double bus project (PDF 266 KB)

• Trinity line cat building-CX101101 (PDF 266 KB)

• Off ROW hazard trees-phase 1 (PDF 242 KB)​

• CV​P ​COTP ACI path 15 rate CX (PDF 242 KB)

For additional information on any of the projects listed above please contact Tish Saare at 916-847-3608​​. ​