Westminster East Garden Grove Study

3 Documents in Project


SCH Number
Lead Agency
Army Corps of Engineers, United States (United States Army, Army Corps of Engineers)
Document Title
Westminster East Garden Grove Study
Document Type
EIR - Draft EIR
Project Applicant
U.S. Army Corps of Engineers, Chicago District
Present Land Use
Various by City and portion of unincorporated County

Document Description
The project identifies the federal interest in flood risk management within the Westminster watershed. The No Action Alternative along with two Action Alternatives were carried forward for analysis. The Recommended Plan is the Maximum Channel Modifications Plan, which includes implementing the maximum channel modifications in individual reaches of C02 (Bolsa Chica Channel), C04 (Westminster Channel), C05 (East Garden Grove-Wintersburg Channel), and C06 (Ocean View Chanel). The Recommended Plan also includes increasing the span of Warner Avenue Bridge and removing the tide gates on C05 Reach 1 and replacing with an access bridge. Compatible nonstructural measures would be incorporated to lessen the life safety risk associated with flooding in the project area.

Contact Information
Shawna Herleth-King
U.S. Army Corps of Engineers, Chicago District
231 S. LaSalle Street, Suite 1500
Chicago, IL, IL 60604

Phone : (312) 846-5407


Cross Streets
Total Acres
87 square miles
Parcel #
State Highways
SR1 - Pacific Coast Hwy
UPRR, BNSF, Metrolink
Los Alamitos Airfield FAA SL1
Outer Bolsa Bay, Channels CO2, CO4, CO5, CO6

Notice of Completion

Review Period Start
Review Period End
Local Action
FRM Study
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Coastal Zone Drainage/Absorption Economics/Jobs Fiscal Impacts Flood Plain/Flooding Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Air Resources Board California Coastal Commission California Department of Conservation California Department of Forestry and Fire Protection California Department of Parks and Recreation California Department of Resources Recycling and Recovery California Department of Transportation, District 12 California Department of Transportation, Division of Aeronautics California Department of Water Resources California Governor's Office of Emergency Services California Highway Patrol California Native American Heritage Commission California Natural Resources Agency California Public Utilities Commission Department of Toxic Substances Control Office of Historic Preservation State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, South Coast Region 5 California Regional Water Quality Control Board, Santa Ana Region 8 California State Lands Commission


Environmental Document
01 - Summary_Form_for_Document_Submittal   PDF 589 K 03 - Westminster Final Report for CEQA Review_20Dec2019   PDF 14485 K 2017124001 Public Review for California Flood Risk Management Study   PDF 595 K App A - Hydraulics Appendix   PDF 6811 K App B - Civil Engineering Appendix   PDF 49565 K App C - Cost Engineering Appendix   PDF 5614 K App D - Real Estate Plan   PDF 25036 K App E - Economics Appendix   PDF 2999 K App F - HTRW Appendix   PDF 5981 K App G - Geotechnical Engineering Appendix   PDF 64492 K App H - Plan Formulation Appendix   PDF 8048 K App I - General Conformity Analysis   PDF 1894 K App J - Coordination_20DEC19   PDF 13943 K App K - USFWS Coordination Act Report   PDF 8130 K App L - Environmental Considerations_20DEC2019   PDF 42772 K App M - Mitigation Strategy   PDF 2033 K App N - Coastal Consistency Determination   PDF 2046 K App O - Structural Engineering Appendix   PDF 13085 K
Final Document(s)
Westminster CA State Clearinghouse State and Agency   PDF 691 K Westminster Draft Chief Report 17 April 2020   PDF 186 K
02 - Notice of Completion Form Westminster Watershed Study   PDF 421 K
State Comments
2017124001_CDFW_pdf Westminster East GardenGrove Study Draft EIR-EIS   PDF 4179 K 2017124001_RWQCB Comment   PDF 526 K 2017124001_State Lands Commission Comment   PDF 8244 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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