2020 LA River Master Plan

2 Documents in Project


SCH Number
Lead Agency
Los Angeles County Department of Public Works (DPW)
Document Title
2020 LA River Master Plan
Document Type
EIR - Draft EIR

Document Description
The proposed Project builds on the adopted 1996 Master Plan and other regional planning studies since then. The proposed Project is located along a 51-mile-long, 2-mile-wide corridor (i.e., 1 mile on each side) of the LA River in Los Angeles County and spans through 17 cities and unincorporated Los Angeles County areas (18 total jurisdictions). The Project proposes six categories of project improvements, or “kit of parts” (KOP): KOP Category 1: Trails and Access Gateways; KOP Category 2: Channel Modifications; KOP Category 3: Crossings and Platforms; KOP Category 4: Diversions; KOP Category 5: Floodplain Reclamation; and KOP Category 6: Off-Channel Land Assets. Each KOP category includes a recommended collection of design components that can be implemented individually or in any combination. In addition, the 2020 LA River Master Plan includes a series of smaller common elements and Design Guidelines.

Contact Information
Grace Komjakraphan-Tek
Los Angeles County Public Works
Lead/Public Agency
900 South Fremont Avenue, 11th Floor
Alhambra, CA 91803

Phone : (626) 458-4330

Los Angeles County Public Works
Project Applicant


Los Angeles
Los Angeles
Cross Streets
Total Acres
Parcel #
State Highways
I-5, 405, 110, I-10, I-710
Amtrak, BNSF, Metrolink
LAX, Burbank, Long Beach
Pacific Ocean, Los Angeles River

Notice of Completion

Review Period Start
Review Period End
Development Type
Residential Educational (arts and culture facility) Recreational (trails, parks, etc) Water Facilities (flood management )
Local Action
Master Plan
Project Issues
Aesthetics Air Quality Biological Resources Coastal Zone Cultural Resources Cumulative Effects Drainage/Absorption Flood Plain/Flooding Geology/Soils Greenhouse Gas Emissions Growth Inducement Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Schools/Universities Septic System Sewer Capacity Solid Waste Transportation Tribal Cultural Resources Vegetation Wetland/Riparian Wildfire Wildlife Wildfire, energy
Reviewing Agencies
California Air Resources Board (ARB) California Baldwin Hills Conservancy (BHC) California Coastal Commission (CCC) California Department of Conservation (DOC) California Department of Corrections and Rehabilitation (CDCR) California Department of Fish and Wildlife, Marin Region 7 (CDFW) California Department of Forestry and Fire Protection (CAL FIRE) California Department of Housing and Community Development (HCD) California Department of Parks and Recreation California Department of State Parks, Division of Boating and Waterways California Department of Transportation, Division of Aeronautics (DOT) California Department of Transportation, Division of Transportation Planning (DOT) California Department of Water Resources (DWR) California Governor's Office of Emergency Services (OES) California Highway Patrol (CHP) California Native American Heritage Commission (NAHC) California Natural Resources Agency California Public Utilities Commission (CPUC) California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB) California Santa Monica Mountains Conservancy (SMMC) California State Lands Commission (SLC) Department of Toxic Substances Control Office of Historic Preservation San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC) Santa Monica Bay Restoration State Water Resources Control Board, Division of Water Quality California Department of Transportation, District 7 (DOT) California Department of Fish and Wildlife, South Coast Region 5 (CDFW)


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
_Memo   PDF 585 K _Memo 2   PDF 587 K Draft NOA_Updated_clean   PDF 1571 K NOA_May13   PDF 1570 K
Environmental Document
__Front Matter   PDF 13621 K _ExecutiveSummary   PDF 1198 K 3   PDF 6278 K 3   PDF 1316 K 3   PDF 23986 K 3   PDF 3716 K 3   PDF 432 K 3   PDF 11499 K 3   PDF 656 K 3   PDF 13094 K 3   PDF 14613 K 3   PDF 11991 K 3   PDF 11470 K 3   PDF 887 K 3   PDF 15723 K 3   PDF 12912 K 3   PDF 805 K 3   PDF 828 K 3   PDF 48564 K 3   PDF 2327 K 3   PDF 736 K Appendix_A_Notice of Preparation-ScopingComments   PDF 6605 K Appendix_B_LA River Master Plan DesignGuidelines_Vol1   PDF 25465 K Appendix_B_LA River Master Plan DesignGuidelines_Vol2   PDF 8448 K Appendix_B_LA River Master Plan DesignGuidelines_Vol3   PDF 33600 K Appendix_B_LA River Master Plan DesignGuidelines_Vol4   PDF 16957 K Appendix_B_LA River Master Plan DesignGuidelines_Vol5   PDF 9581 K Appendix_B_LA River Master Plan DesignGuidelines_Vol6   PDF 7894 K Appendix_C_AQGHG   PDF 462 K Appendix_D_BiologicalResources   PDF 1096 K Appendix_E_CulturalResources   PDF 309 K Appendix_F_EnergyCalculations   PDF 187 K Appendix_G_NoiseMeasurements   PDF 8164 K Appendix_H_TIA   PDF 5916 K Appendix_I_TribalConsultationLetters   PDF 894 K Ch1_Introduction   PDF 373 K Ch2_ProjectDescription   PDF 15057 K Ch3_CEQAEnvImpactAssess   PDF 326 K Ch4_OtherCEQA   PDF 433 K Ch5_Alternatives   PDF 601 K Ch6_List of Preparers   PDF 173 K Ch7_References   PDF 726 K NOA_012821   PDF 1552 K
NOC_2   PDF 163 K
Notice of Completion [NOC] Transmittal form
NOC_March 8_Signed   PDF 233 K NOC_Updated   PDF 232 K
State Comment Letters [Comments from state reviewing agencies]
2020070128_CDFW Comment   PDF 986 K
State Comments
2020070128_DOT Comment   PDF 187 K

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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