Colusa County, CA
211 public highway bridges
Colusa County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Colusa County, California contains 211 public highway bridges. Roughly 37.4% are rated “Good,” 48.3% “Fair,” and 6.2% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (211)
DENNIS DR
PoorOver: SALT CREEK
0.1 MI W LODOGA-STONYFORD, Colusa, CA
MAXWELL-SITES RD
PoorOver: STONE CORRAL CREEK
8.8 MI W/O I-5, Colusa, CA
HANKINS ROAD
PoorOver: SPRING CREEK
0.8 MI NW FROM WALNUT DR, Colusa, CA
LA GRANDE RD
PoorOver: GLENN-COLUSA CANAL
0.3 MI WEST DANLEY RD, Colusa, CA
SYCAMORE SLOUGH RD
PoorOver: SYCAMORE SLOUGH
4.3 MI NE SACHREITER RD, Colusa, CA
BRIM ROAD
PoorOver: BEAR CREEK
0.1 MI W BEAR VALLEY ROAD, Colusa, CA
COLLEGE CITY RD
PoorOver: CLARKS DITCH
WHITE ROAD, Colusa, CA
OLD 99W
PoorOver: STONE CORRAL CREEK
0.6 MI N MXWL-SITES RD, Colusa, CA
FOUR MILE RD
PoorOver: LOGAN CREEK
0.7 MI N OF DELEVAN RD, Colusa, CA
COUNTY LINE RD
PoorOver: RD 108 10P CANAL
4.6 MI EAST OF I-5, Colusa, CA
LONE STAR ROAD
PoorOver: CORTINA CREEK
0.7 MI SOUTH OF MEYERS RD, Colusa, CA
Read our methodology - how this data is sourced, computed, and verified.
Related
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.