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.

211
Total Bridges
37.4%
Good
48.3%
Fair
6.2%
Poor Condition

Condition Distribution

Good
37.4% (79)
Fair
48.3% (102)
Poor
6.2% (13)

All Bridges (211)

STATE ROUTE 45

Fair

Over: HIGH DITCH

03-COL-045-4.05, Colusa, CA

Built 1980 Load: 28.5 t ADT: 1,000

PUTNUM WAY

Fair

Over: SALT CREEK

1 MI N OF HILLGATE RD, Colusa, CA

Built 1967 Load: 28.8 t ADT: 421

HAHN ROAD

Fair

Over: TEHAMA-COLUSA CANAL

1.3 MI W CORTINA SCHOL RD, Colusa, CA

Built 1976 Load: 28.8 t ADT: 122

CORTINA SCHOOL RD

Fair

Over: TEHAMA-COLUSA CANAL

0.8 MI S HAHN RD, Colusa, CA

Built 1976 Load: 28.8 t ADT: 185

HILLGATE ROAD

Fair

Over: TEHAMA-COLUSA CANAL

2.5 MI WEST OF I-5, Colusa, CA

Built 1976 Load: 28.8 t ADT: 645

MAXWELL-SITES RD

Fair

Over: STONE CORRAL CREEK

1.5 MI W MILL ORCHARD RD, Colusa, CA

Built 1957 Load: 29.2 t ADT: 462

LODOGA-STONYFRD RD

Fair

Over: STONY CREEK

IN STONYFORD, Colusa, CA

Built 1958 Load: 29.5 t ADT: 342

HAHN RD

Fair

Over: SOUTH BRANCH SAND CREEK

2.1 MI E OF OLD 99, Colusa, CA

Built 1969 Load: 30.1 t ADT: 1,541

STATE ROUTE 16

Fair

Over: BEAR CREEK

03-COL-016-R4.34, Colusa, CA

Built 1964 Load: 30.8 t ADT: 630

FOUR MILE RD

Fair

Over: HUNTERS CREEK

0.5 MI N OF DELEVAN RD, Colusa, CA

Built 1950 Load: 31.1 t ADT: 18

JENSEN AVE

Fair

Over: TEHAMA-COLUSA CANAL

0.3 MI S OF HILLGATE RD, Colusa, CA

Built 1976 Load: 31.1 t ADT: 124

REDDINGTON AVE

Fair

Over: TEHAMA-COLUSA CANAL

0.4 MI S OF HILLGATE RD, Colusa, CA

Built 1976 Load: 31.1 t ADT: 135

WILDWOOD RD

Fair

Over: TEHAMA-COLUSA CANAL

0.2 MI S OF WAGNER RD, Colusa, CA

Built 1976 Load: 31.1 t ADT: 1,018

DELPHOS ROAD

Fair

Over: LURLINE CREEK

0.5 MI S/O LURLINE AVE, Colusa, CA

Built 1971 Load: 31.4 t ADT: 22

INTERSTATE 5

Fair

Over: PETROLEUM CREEK

03-COL-005-R2.05, Colusa, CA

Built 1967 Load: 31.8 t ADT: 15,000

INTERSTATE 5

Fair

Over: PETROLEUM CREEK

03-COL-005-R2.05, Colusa, CA

Built 1967 Load: 31.8 t ADT: 18,000

INTERSTATE 5 NB

Fair

Over: SALT CREEK

03-COL-005-R7.99, Colusa, CA

Built 1952 Load: 32.1 t ADT: 15,000

DIRKS ROAD

Fair

Over: DIRKS CREEK

1.3 MI S OF GLEN CO LINE, Colusa, CA

Built 1960 Load: 32.1 t ADT: 114

STATE ROUTE 45

Fair

Over: WILKINS SLOUGH

03-COL-045-6.85, Colusa, CA

Built 1992 Load: 32.4 t ADT: 1,000

INTERSTATE 5

Fair

Over: FARM LAND DRAIN

03-COL-005-R1.14, Colusa, CA

Built 1968 Load: 32.4 t ADT: 30,000

STATE ROUTE 20

Fair

Over: BEAR CREEK

03-COL-020-3.28, Colusa, CA

Built 2009 Load: 32.4 t ADT: 5,400

FRESHWATER ROAD

Fair

Over: FRESHWATER CREEK

AT SCHAAD RD, Colusa, CA

Built 1968 Load: 32.4 t ADT: 252

GRIDLEY ROAD

Fair

Over: ANGEL SLOUGH

1.7 MI E BUTLER RD, Colusa, CA

Built 1973 Load: 32.4 t ADT: 541

LODOGA-SITES RD

Fair

Over: STONE CORRAL CREEK

9.6 MI WEST OF I-5, Colusa, CA

Built 1991 Load: 32.4 t ADT: 342

SITES-LODOGA ROAD

Fair

Over: HOWARD CREEK

15 MI WEST OF I-5, Colusa, CA

Built 1995 Load: 32.4 t ADT: 303

SAN JOSE ROAD

Fair

Over: LURLINE CREEK

0.5 MI N LURLINE RD, Colusa, CA

Built 1972 Load: 32.4 t ADT: 46

FOUR MILE ROAD

Fair

Over: STONE CORRAL CREEK

1.2 MI N MAXWELL RD, Colusa, CA

Built 1988 Load: 32.4 t ADT: 32

SAN JOSE ROAD

Fair

Over: FRESHWATER CREEK

0.6 MI NORTH OF SR 20, Colusa, CA

Built 1960 Load: 32.4 t ADT: 71

WILBUR SPRINGS RD

Fair

Over: SULPHUR CREEK

1 MI W/O BEAR VALLEY ROAD, Colusa, CA

Built 2001 Load: 32.4 t ADT: 20

GIBSON ROAD

Fair

Over: LURLINE CREEK

0.3 MI S/O LURLINE ROAD, Colusa, CA

Built 2001 Load: 32.4 t ADT: 33

FAIRVIEW ROAD

Fair

Over: GLENN-COLUSA CANAL

AT DANLEY ROAD, Colusa, CA

Built 2004 Load: 32.4 t ADT: 324

MCDERMOTT ROAD

Fair

Over: FUNKS CREEK

0.4 MI S LENAHAN RD, Colusa, CA

Built 2006 Load: 32.4 t ADT: 271

OHM RD

Fair

Over: SALT CREEK

0.5 MI SOUTH OF HAHN RD., Colusa, CA

Built 2006 Load: 32.4 t ADT: 105

LONE STAR ROAD

Fair

Over: GLENN-COLUSA CANAL

100 FT SOUTH OF WARE RD, Colusa, CA

Built 1968 Load: 32.7 t ADT: 2,417

LENAHAN ROAD

Fair

Over: FUNKS CREEK

0.2 MI E OF SUTTON ROAD, Colusa, CA

Built 1971 Load: 33.4 t ADT: 40

STATE ROUTE 16

Fair

Over: BEAR CREEK

03-COL-016-R3.35, Colusa, CA

Built 1964 Load: 33.7 t ADT: 630

LEESVILLE ROAD

Fair

Over: FRESHWATER CREEK

1.5 MI NW/O SR 20, Colusa, CA

Built 2000 Load: 34.0 t ADT: 20

INTERSTATE 5 SB

Fair

Over: SALT CREEK DR

03-COL-005-R7.70, Colusa, CA

Built 1967 Load: 35.0 t ADT: 15,000

INTERSTATE 5 NB

Fair

Over: SALT CREEK DR

03-COL-005-R7.70, Colusa, CA

Built 1967 Load: 35.0 t ADT: 15,000

ABEL ROAD

Fair

Over: COLUSA TROUGH

0.7 MI E OF OHM RD, Colusa, CA

Built 1966 Load: 35.3 t ADT: 83

GAIL AVE (OLD 99W)

Fair

Over: SALT CREEK

0.1 MI N OF GRIMES RD, Colusa, CA

Built 1967 Load: 35.6 t ADT: 5,151

INTERSTATE 5 SB

Fair

Over: SALT CREEK

03-COL-005-R7.99, Colusa, CA

Built 1967 Load: 36.0 t ADT: 15,000

EDDY ROAD

Fair

Over: CLARKS DITCH

1.9 MI E OF I-5, Colusa, CA

Built 1976 Load: 36.3 t ADT: 244

LA GRANDE RD

Fair

Over: GLENN VALLEY SLOUGH

1.0 MI W OF DANLEY RD, Colusa, CA

Built 1971 Load: 36.3 t ADT: 35

LODOGA-STONYFRD RD

Fair

Over: INDIAN CREEK

23.3 MI W/O 1-5, Colusa, CA

Built 1976 Load: 37.6 t ADT: 296

TWO MILE ROAD

Fair

Over: PAMELA CREEK

1.6 MI N OF LURLINE AVE, Colusa, CA

Built 1935 Load: 37.6 t ADT: 76

FIFTH ST (OLD 99W)

Fair

Over: ROSINA DRAW

9.9 MI N OF YOLO CO LINE, Colusa, CA

Built 1951 Load: 39.5 t ADT: 6,687

MAXWELL-SITES RD

Fair

Over: GLENN-COLUSA CANAL

0.8 MI W/O MCDERMOTT ROAD, Colusa, CA

Built 1968 Load: 39.5 t ADT: 613

MAXWELL ROAD

Fair

Over: STONE CORRAL CREEK

4.5 MI EAST OF I-5, Colusa, CA

Built 1971 Load: 40.8 t ADT: 2,306

INTERSTATE 5

Fair

Over: FRESHWATER CREEK

03-COL-005-R19.66, Colusa, CA

Built 1971 Load: 41.1 t ADT: 15,000
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

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.