Denman Reach Phase 3

7 Documents in Project


SCH Number
Lead Agency
Petaluma, City of (City of Petaluma)
Document Title
Denman Reach Phase 3
Document Type
MND - Mitigated Negative Declaration
Present Land Use
GP: Business Park, Floodway and/or Floodplain; Z: Planned Community District and Floodway

Document Description
The project includes the acquisition of one to three parcels along the east bank of the Petaluma River within the lower Denman Reach. The proposed project will extend the existing terracing project upstream, northward, increase channel capacity by grading to lower the top-of-bank surface approximately 4 to 6 feet in a zone extending from approximately 75 to as much as 150 feet wide along the river. This project will continue to reconnect the river with its historic floodplain in this area. This will provide flood impact reduction, water quality improvements, and aquatic and terrestrial habitat benefits. Components of the flood terrace excavation will include creation and or restoration of riparian habitat buffer zones, seasonal wetlands, and shallow surface water filtering swales (biowales). In addition to floodplain restoration, the project will include public access.

Contact Information
Pamela Tuft
City of Petaluma, Dept. of Water Resources & Conservation
202 N. McDowell Boulevard
Petaluma, CA 94954

Phone : (707) 778-4514


38°15'59"N 122°40'3"W
Cross Streets
Industrial Avenue and Petaluma Boulevard North
Total Acres
Parcel #
007-412-031, -033, -036
State Highways
Hwy 101
Petaluma Municipal
Petaluma USD
Petaluma River

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Flood Terrace and River Enhancement)
Project Issues
Aesthetic/Visual Biological Resources Drainage/Absorption Flood Plain/Flooding Geologic/Seismic Noise Soil Erosion/Compaction/Grading Water Quality Water Supply Wetland/Riparian Land Use
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Caltrans, Division of Aeronautics Department of Toxic Substances Control Department of Water Resources Office of Historic Preservation Resources Agency California Department of Transportation, District 4

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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