Mission Zanja Creek Flood Control Improvements


SCH Number
Lead Agency
City of Redlands
Document Title
Mission Zanja Creek Flood Control Improvements
Document Type
JD - Joint Document
Present Land Use
Flood control channel/Public Right-of-Way/Linear Park

Document Description
The proposed project would include: Removal of the existing culvert inlet, the open, lined channel between the inlet and 9th Street, and the 9th Street bridge; Construction of a new culvert approximately 440 feet long extending from the confluence with Reservoir Canyon Drain to the upstream (east) side of the 9th Street bridge. The new box culvert would be 7.7 feet wide by 7.7-feet high for a 400-foot length from the confluence with Reservoir Canyon Drain to 40 feet downstream (west) of the 9th Street bridge. A 50-foot long transition from a 7.7-foot wide by 7.7 foot high box culvert to a 14-foot wide by 7.7-foot high box culvert would extend the culvert under the 9th Street bridge. A 45-foot open channel concrete apron would be constructed as a new inlet for the culvert, upstream (east) of the 9th Street bridge. This would be an open channel, with vertical walls at the bridge transitioning to a trapezoidal channel; construction of a concrete apron extending 45 feet upstream (east) of the 9th Street bridge; and construction of a new, free-span bridge at 9th Street.

Contact Information
Robert Dalquest
City of Redlands
Lead/Public Agency
35 Cajon Street, Suite 20 P.O. Box 3005
Redlands, CA 92373

Phone : (909) 798-7555


San Bernardino
Cross Streets
9th Street/Redlands Boulevard
Total Acres
State Highways
Burlington, Northern & Santa Fe
Redlands High School/Franklin Elementary
Mission Zanja Creek

Notice of Completion

Review Period Start
Review Period End
Development Type
Other (Flood Control Improvements)
Local Action
Capital Improvement Project
Project Issues
Aesthetics Air Quality Cultural Resources Drainage/Absorption Flood Plain/Flooding Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Noise Public Services Transportation Wetland/Riparian Wildlife
Reviewing Agencies
California Department of Conservation (DOC) California Department of Parks and Recreation California Department of Transportation, District 8 (DOT) California Highway Patrol California Native American Heritage Commission (NAHC) California State Lands Commission (SLC) Department of Fish and Wildlife, Region 6 Department of Water Resources Office of Historic Preservation Resources Agency State Water Resources Control Board, Division of Water Quality California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB)

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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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