Modjeska Canyon Road Bridge Replacement


SCH Number
Lead Agency
Orange County
Document Title
Modjeska Canyon Road Bridge Replacement
Document Type
MND - Mitigated Negative Declaration
Present Land Use
The land use designations at and near the Project site are Rural Residential and Suburban Residential as defined by the Orange County General Plan.
Document Description
Orange County Public Works, in cooperation with the California Department of Transportation (Caltrans), is proposing to replace the Modjeska Bridge (Bridge No. 55C-0172) over Santiago Creek. The Modjeska Bridge is located in Modjeska Canyon near the Cleveland National Forest. The existing bridge is a single span and crosses over Santiago Creek. The Project will replace the existing substandard steel bridge; a portion of the construction funding is provided by the Highway Bridge Program (HBP). The proposed replacement structure is a 65’-2” long and 43’-10” wide single span prestressed, precast concrete I girder bridge. The bridge will be raised approximately one foot to increase hydraulic conveyance. Tall abutment walls, similar to the existing condition, will be set on spread footing foundations. Tall wing walls will be required at all corners. The replacement bridge will have 12-foot-wide lanes and will include 8-foot minimum width shoulders. Bridge barriers will be deck mounted concrete barrier Type 836.

Contact Information

Sam Tieu
Agency Name
Orange County Public Works
Job Title
PE | Civil Engineer
Contact Types
Lead/Public Agency


Cross Streets
Markuson Road and Modjeska Canyon Road

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 12 (DOT), California Department of Water Resources (DWR), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
State Reviewing Agency Comments
California Department of Fish and Wildlife, South Coast Region 5 (CDFW)
Development Types
Transportation:Other (Bridge Replacement)
Local Actions
Bridge Replacement
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Energy, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Wildfire
Local Review Period Start
Local Review Period End


Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from state reviewing agencies]

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