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)

NORMAN ROAD

Good

Over: COLUSA DRAIN

0.5 MI E CLARK AVE, Colusa, CA

Built 2009 Load: 32.4 t ADT: 289

OLD 99W

Good

Over: NOBO DRAW

0.5 MI NORTH OF HAHN RD, Colusa, CA

Built 1946 Load: 32.4 t ADT: 5,274

HILLGATE ROAD

Good

Over: ELK CREEK

0.1 MI W OF JENSEN AVE, Colusa, CA

Built 1972 Load: 32.4 t ADT: 739

LURLINE AVE

Good

Over: COLUSA TROUGH

1.5 MI E OF SAN JOSE RD, Colusa, CA

Built 1986 Load: 32.4 t ADT: 126

LEESVILLE ROAD

Good

Over: N BR FRESHWATER CREEK

2 MI NW OLD WILBUR ROAD, Colusa, CA

Built 2010 Load: 32.4 t ADT: 23

BEAR VALLEY ROAD

Good

Over: BEAR CREEK

1.4 MI N/O OLD WILBUR RD, Colusa, CA

Built 1998 Load: 32.4 t ADT: 41

FOUTS SPRINGS ROAD

Good

Over: MILL CREEK

12.5 MI W/O STONYFORD, Colusa, CA

Built 1997 Load: 32.4 t ADT: 190

SITES-LODOGA ROAD

Good

Over: SQUAW CREEK

1.2 MI N OF LODOGA, Colusa, CA

Built 1998 Load: 32.4 t ADT: 283

SITES-LODOGA ROAD

Good

Over: SQUAW CREEK

1.3 MI N OF LODOGA, Colusa, CA

Built 1998 Load: 32.4 t ADT: 283

DANLEY LATERAL RD

Good

Over: GLENN-COLUSA CANAL

0.3 MI WEST OF DANLEY RD, Colusa, CA

Built 2000 Load: 32.4 t ADT: 77

GIBSON ROAD

Good

Over: FRESHWATER CREEK

0.1 MI N/O FRESHWATER RD, Colusa, CA

Built 2001 Load: 32.4 t ADT: 41

WHITE ROAD

Good

Over: COLUSA DRAIN

3.2 MI WEST OF S.R. 45, Colusa, CA

Built 2002 Load: 32.4 t ADT: 56

BAGLEY ROAD

Good

Over: GLENN-COLUSA CANAL

0.3 MI WEST OF DANLEY RD, Colusa, CA

Built 2003 Load: 32.4 t ADT: 55

OHM ROAD

Good

Over: GLENN-COLUSA CANAL

AT WARE ROAD, Colusa, CA

Built 2004 Load: 32.4 t ADT: 18

DANLEY ROAD

Good

Over: GLENN VALLEY SLOUGH

1.8 MI N FRESHWATER RD., Colusa, CA

Built 2007 Load: 32.4 t ADT: 189

EVANS ROAD

Good

Over: CORTINA CREEK

1.6 MI SOUTH MEYERS RD, Colusa, CA

Built 2012 Load: 32.4 t ADT: 250

WALNUT DRIVE

Good

Over: SPRING CREEK

2.3 MI W OF ZUMWALT RD., Colusa, CA

Built 2010 Load: 32.4 t ADT: 410

MCDERMOTT RD.

Good

Over: TERESA CREEK

0.7 MI N OF DELEVAN RD., Colusa, CA

Built 2010 Load: 32.4 t ADT: 318

E CAMP ROAD

Good

Over: SPRING CREEK

3.4 MI S OF S.R. 20, Colusa, CA

Built 2012 Load: 32.4 t ADT: 307

LENAHAN ROAD

Good

Over: FUNKS CREEK

0.2 MI W OF SUTTON ROAD, Colusa, CA

Built 2015 Load: 32.4 t ADT: 48

COUNTY LINE ROAD

Good

Over: 108 MAIN DRAIN (SYCAMOR)

4 MI EAST OF HWY 5, Colusa, CA

Built 2017 Load: 32.4 t ADT: 200

FIFTH ST (OLD 99W)

Good

Over: NORTH BRANCH SAND CREEK

N OF YOLO CO LIN 9.8 MI, Colusa, CA

Built 1951 Load: 33.0 t ADT: 6,687

HAHN ROAD

Good

Over: SALT CREEK

0.3 MI EAST OF OHM RD, Colusa, CA

Built 1968 Load: 33.4 t ADT: 2,071

MILLER ROAD

Good

Over: SALT CREEK

AT HAHN ROAD, Colusa, CA

Built 2003 Load: 34.0 t ADT: 59

INTERSTATE 5

Good

Over: NORTH BRANCH SAND CREEK

03-COL-005-R9.79, Colusa, CA

Built 1967 Load: 34.7 t ADT: 15,000

INTERSTATE 5

Good

Over: NORTH BRANCH SAND CREEK

03-COL-005-R9.79, Colusa, CA

Built 1967 Load: 34.7 t ADT: 15,000

STATE ROUTE 20

Good

Over: SALT CREEK

03-COL-020-20.21, Colusa, CA

Built 1959 Load: 35.0 t ADT: 5,800

TULE ROAD

Good

Over: COLUSA DRAIN

1.2 MI E COLLEGE CITY RD, Colusa, CA

Built 1958 Load: 35.6 t ADT: 524

INTERSTATE 5

Good

Over: CORTINA CREEK

03-COL-005-R12.54, Colusa, CA

Built 1967 Load: 37.3 t ADT: 15,000

HAHN ROAD

Good

Over: NORTH BRANCH SAND CREEK

0.7 MI EAST OF OLD 99 W, Colusa, CA

Built 1968 Load: 37.6 t ADT: 1,651

INTERSTATE 5 SB

Good

Over: FUNKS CREEK

03-COL-005-R30.82, Colusa, CA

Built 1970 Load: 38.2 t ADT: 12,500

INTERSTATE 5

Good

Over: FUNKS CREEK

03-COL-005-R30.82, Colusa, CA

Built 1970 Load: 38.2 t ADT: 12,500

GRIMES-ARBUCKLE RD

Good

Over: COLUSA TROUGH

4 MI E OF OLD RTE 99W, Colusa, CA

Built 1971 Load: 39.9 t ADT: 1,673

INTERSTATE 5

Good

Over: LURLINE CREEK

03-COL-005-R22.32, Colusa, CA

Built 1971 Load: 40.2 t ADT: 12,500

INTERSTATE 5

Good

Over: LURLINE CREEK

03-COL-005-R22.31, Colusa, CA

Built 1971 Load: 40.2 t ADT: 12,500

OLD 99W

Good

Over: FUNKS CREEK

AT LENAHAN RD, Colusa, CA

Built 1927 Load: 40.5 t ADT: 642

FIFTH ST (OLD 99W)

Good

Over: SALT CREEK

0.4 MI S FRESHWATER RD, Colusa, CA

Built 1930 Load: 41.5 t ADT: 3,219

INTERSTATE 5

Good

Over: HUNTERS CREEK

03-COL-005-R32.94, Colusa, CA

Built 1970 Load: 41.8 t ADT: 12,500

INTERSTATE 5

Good

Over: HUNTERS CREEK

03-COL-005-R32.94, Colusa, CA

Built 1970 Load: 41.8 t ADT: 12,500

AUTO TOUR ROUTE

Good

Over: POWELL SLOUGH

W .2 MI ON REFUGE ROAD, Colusa, CA

Built 1991 Load: 44.5 t ADT: 25

SUTTON ROAD

Good

Over: STONE CORRAL CREEK

0.5 MI N OF MAXWELL-SITES, Colusa, CA

Built 1975 Load: 49.2 t ADT: 210

FRESHWATER LATERAL

Good

Over: SALT CREEK

0.5 MI S/O FRESHWATER RD, Colusa, CA

Built 2004 Load: 50.2 t ADT: 85

INTERSTATE 5

Good

Over: FUNK SLOUGH OVERFLOW

03-COL-005-R29.02, Colusa, CA

Built 1971 Load: 55.7 t ADT: 12,500

INTERSTATE 5

Good

Over: FUNK SLOUGH OVERFLOW

03-COL-005-R29.02, Colusa, CA

Built 1971 Load: 55.7 t ADT: 12,500

WILDWOOD ROAD

Good

Over: PETROLEUM CREEK

0.3 MI N YOLO CO LINE, Colusa, CA

Built 1980 Load: 59.9 t ADT: 539

INTERSTATE 5 SB

Good

Over: STONE CORRAL CREEK

03-COL-005-R27.74, Colusa, CA

Built 1971 Load: 63.8 t ADT: 12,500

INTERSTATE 5

Good

Over: SALT CREEK

03-COL-005-R19.25, Colusa, CA

Built 1971 Load: 63.8 t ADT: 15,000

INTERSTATE 5

Good

Over: SALT CREEK

03-COL-005-R19.25, Colusa, CA

Built 1971 Load: 63.8 t ADT: 15,000

LEESVILLE-LODGA RD

Poor

Over: LITTLE INDIAN CREEK

6.1 MI N LEESVILLE ROAD, Colusa, CA

Built 1915 ADT: 37

SYCAMORE SLOUGH RD

Poor

Over: SYCAMORE SLOUGH

0.6 MI N OF SACHREITER RD, Colusa, CA

Built 1915 Load: 9.1 t ADT: 70

Read our methodology - how this data is sourced, computed, and verified.

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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.