Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
MIDDLE RINCON RD
FairOver: AUSTIN CREEK
0.25 MI N OF SH 12, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 2,200
CLEVELAND AVE
FairOver: PAULINE CREEK
0.3 MI N GUERNEVILLE RD, Sonoma, CA
Built 1963 Load: 24.3 t ADT: 13,000
CALISTOGA ROAD
FairOver: AUSTIN CREEK
N INTRX WITH S.R. 12, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 17,770
PINER ROAD
FairOver: PINER CREEK
IN SANTA ROSA, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 5,900
COFFEY LANE
FairOver: PINER CREEK
0.1 MILES S/O PINER ROAD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 3,100
MARLOW ROAD
FairOver: PINER CREEK
MARLOW ROAD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 2,300
MARLOW RD
FairOver: PAULINE CREEK
MARLOW RD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 12,500
SNYDER LN
FairOver: BRANCH OF FIVE CREEK
1.1 MI N ROHNERT PARK EXP, Sonoma, CA
Built 1965 Load: 24.3 t ADT: 1,500
SNYDER LANE
FairOver: COPELAND CREEK
0.5 MI N E. COTATI AVE, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 3,124
COMMERCE BLVD
FairOver: HINEBAUGH CREEK
0.1 MI N RNPK EXPRESSWAY, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 500
E COTATI AVE
FairOver: FLOOD CONTROL DITCH
0.1 MI NE OLD REDWOOD HWY, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 3,000
GEYSERS RD
FairOver: GIRD CREEK
0.4 MI N OF SR 128, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 500
WATMAUGH ROAD
FairOver: RODGERS CREEK
0.3 MI W ARNOLD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 4,000
RAILROAD AVE
FairOver: DOWDALL CREEK
0.3 MI S/O VERANO, Sonoma, CA
Built 1961 Load: 24.3 t ADT: 524
ST HELENA ROAD
FairOver: VAN BUREN CREEK
1.2 MI W CALISTOGA RD, Sonoma, CA
Built 1952 Load: 24.3 t ADT: 2,100
GILMORE AVENUE
FairOver: GOSSAGE CREEK
0.1 MI N/O DERBY LANE, Sonoma, CA
Built 1972 Load: 24.3 t ADT: 100
SCENIC AVE
FairOver: NO NAME CREEK
0.1 MI W OF S MOORLAND AV, Sonoma, CA
Built 1950 Load: 24.3 t ADT: 615
MECHAM RD
FairOver: STEMPLE CREEK
S OF 9TH ST, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 3,300
PEPPER RD
FairOver: STEMPLE CREEK
4 MI W OF US 101, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 3,500
WALKER RD
FairOver: GOSSAGE CREEK
AT VALLEY FORD ROAD, Sonoma, CA
Built 1967 Load: 24.3 t ADT: 250
RAINSVILLE RD
FairOver: MARIN CREEK
0.5 MI W STONY POINT RD, Sonoma, CA
Built 1950 Load: 24.3 t ADT: 3,200
CASA GRANDE AVE
FairOver: ADOBE CREEK
0.4 MI N ELY RD, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 1,600
CASA GRANDE AVE
FairOver: ADOBE CREEK
0.25 MI S ADOBE RD, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 2,000
E RAILROAD AVE
FairOver: LICHAU CREEK
0.1 MI E PETALUMA HILL RD, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 750
SWEETWATER SPRG RD
FairOver: BRANCH REDWOOD CREEK
1.2 MI NE ARMSTRNG WOOD R, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 140
SWEETWTR SPRNGS RD
FairOver: PORTER CREEK
7.7 MI W ARMSTRONG RD, Sonoma, CA
Built 1968 Load: 24.3 t ADT: 140
ADOBE CANYON ROAD
FairOver: HILLSIDE
1.1 MI NW/O SR 12, Sonoma, CA
Built 1965 Load: 24.3 t ADT: 650
DUTCHER CREEK RD
FairOver: DUTCHER CREEK
0.1 MI N DRY CREEK RD, Sonoma, CA
Built 1957 Load: 24.3 t ADT: 900
SKAGGS SPRINGS RD
FairOver: WARM SPRINGS CREEK
10.9 MI W JCT RCKPLE RD, Sonoma, CA
Built 1978 Load: 24.3 t ADT: 400
LLANO ROAD
FairOver: ROSELAND CR FLD CNTL CHN
2.4 MI N JCT WITH SR 116, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 3,000
GROVE RD
FairOver: CARRIGER CREEK
1.7 MI W JCT ARNOLD RD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 1,850
HYDE ROAD
FairOver: ARROYO SECO
0.4 MI S JCT NAPA RD, Sonoma, CA
Built 1965 Load: 24.3 t ADT: 400
REDWOOD ROAD
FairOver: HINEBAUGH CREEK
0.3 MI N ROHNERT PK EXPWY, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 4,000
BETHARDS DRIVE
FairOver: MATANZAS CREEK
BET TECHEVAH & YULUPA AV, Sonoma, CA
Built 1966 Load: 24.3 t ADT: 6,000
APACHE STREET
FairOver: PAULIN CREEK
0.1 MI N OF STEELE LANE, Sonoma, CA
Built 1964 Load: 24.3 t ADT: 2,000
CHANATE ROAD
FairOver: PAULIN CREEK
NEAR MENDOCINO AVENUE, Sonoma, CA
Built 1965 Load: 24.3 t ADT: 17,942
MADISON STREET
FairOver: WASHINGTON CREEK
NORTH OF HOLLY LANE, Sonoma, CA
Built 1970 Load: 24.3 t ADT: 300
HARNEY DRIVE
FairOver: SONOMA CREEK
SONOMA STATE INSTITUTION, Sonoma, CA
Built 1935 Load: 24.3 t ADT: 250
DEL PUERTO CYN RD
FairOver: DEL PUERTO CREEK
6.3 MI W INTERSTATE RTE 5, Stanislaus, CA
Built 1959 Load: 24.3 t ADT: 250
BRIGGSMORE AVE WB
FairOver: M.I.D. LATERAL #3
0.2 MI W/O OAKDALE RD, Stanislaus, CA
Built 1969 Load: 24.3 t ADT: 38,223
SUNRISE AVENUE
FairOver: M.I.D. LATERAL #4
0.5 MI N/O LUCERNE AVENUE, Stanislaus, CA
Built 1967 Load: 24.3 t ADT: 7,493
WELLSFORD ROAD
FairOver: M.I.D. MAIN CANAL
0.4 MI N PARKER ROAD, Stanislaus, CA
Built 1928 Load: 24.3 t ADT: 1,750
PETE MILLER ROAD
FairOver: CALIFORNIA AQUEDUCT
2.6 MI WEST OF EASTIN RD, Stanislaus, CA
Built 1966 Load: 24.3 t ADT: 106
ALDRICH ROAD
FairOver: T.I.D. CERES MAIN CANAL
0.8 MI N/O FOX ROAD, Stanislaus, CA
Built 1967 Load: 24.3 t ADT: 250
PLEASANT GROVE RD
FairOver: AUBURN RAVINE
2 MI N OF HOWSLEY RD, Sutter, CA
Built 1938 Load: 24.3 t ADT: 2,136
PLEASANT GROVE RD
FairOver: COON CREEK
12.1 MI N/O RIEGO RD, Sutter, CA
Built 1937 Load: 24.3 t ADT: 1,487
PLEASANT GROVE RD
FairOver: YANKEE SLOUGH
16.1 MI N/O RIEGO RD, Sutter, CA
Built 1938 Load: 24.3 t ADT: 1,180
CATLETT RD
FairOver: EASTSIDE DRAINAGE CANAL
PACIFIC AVE, Sutter, CA
Built 1935 Load: 24.3 t ADT: 718
PACIFIC AVENUE
FairOver: EASTSIDE DRAINAGE CANAL
1/2 MI S CATLETT RD, Sutter, CA
Built 1935 Load: 24.3 t ADT: 269
PLACER RD
FairOver: YANKEE SLOUGH
0.8 MI S/O BEAR RIVER RD, Sutter, CA
Built 1950 Load: 24.3 t ADT: 90
Showing 10,551-10,600 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.