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
FERRY STREET
PoorOver: ARROYO DEL HAMBRE
AT GREEN ST, Contra Costa, CA
Built 1940 Load: 15.2 t ADT: 3,000
SAUNDERS AVE
PoorOver: SAN ANSELMO CREEK
IN SAN ANSELMO, Marin, CA
Built 1935 Load: 15.2 t ADT: 3,000
CENTER BLVD
PoorOver: SAN ANSELMO CREEK
16M NW OF SAN ANSELMO AVE, Marin, CA
Built 1935 Load: 15.2 t ADT: 12,000
TRIANGLE ROAD
PoorOver: SNOW CREEK
0.1 MI W DARRAH RD, Mariposa, CA
Built 1935 Load: 15.2 t ADT: 360
HOSPITAL ROAD
PoorOver: YREKA CREEK
BEHIND COUNTY HOSPITAL, Siskiyou, CA
Built 1987 Load: 15.2 t ADT: 200
HOWARD ROAD
PoorOver: DELTA-MENDOTA CANAL
1.5 MILES EAST OF I-5, Stanislaus, CA
Built 1947 Load: 15.2 t ADT: 2,810
KELLY RD
PoorOver: MCCARTY CREEK
1.5 MI N/O TOOMES CP RD, Tehama, CA
Built 1958 Load: 15.2 t ADT: 30
STATE ROUTE 33
PoorOver: SAN ANTONIO CREEK
07-VEN-033-7.58, Ventura, CA
Built 1936 Load: 15.2 t ADT: 20,500
IRR COUNTY RD 306
PoorOver: WATSON CREEK
0.3 MI N OF RD #305, Glenn, CA
Built 1930 Load: 15.6 t ADT: 268
SOLEDAD CYN RD
PoorOver: SANTA CLARA RIV BR
0.3MI E/O AGUA DULCE CY, Los Angeles, CA
Built 1936 Load: 15.6 t ADT: 2,550
RD 28 1/2
PoorOver: DRY CREEK
0.9 MI N AVE 21, Madera, CA
Built 1948 Load: 15.6 t ADT: 68
AZALEA AVE
PoorOver: FAIRFAX CREEK
80 FT W OF ARROYO RD, Marin, CA
Built 1930 Load: 15.6 t ADT: 110
NORTH FORK ROAD
PoorOver: LEWIS CREEK
0.1 MI NE SH 198, Monterey, CA
Built 1948 Load: 15.6 t ADT: 200
N. COAST HIGHWAY
PoorOver: SAN LUIS REY RIVER
0.22M S/O HARBOR DR, San Diego, CA
Built 1929 Load: 15.6 t ADT: 12,000
HUASNA RD
PoorOver: HUASNA RIVER
2.55 MI E OF HUASNA, San Luis Obispo, CA
Built 1940 Load: 15.6 t ADT: 401
DE LA VINA ST
PoorOver: MISSION CREEK
0.1 MI N ALAMAR AVE, Santa Barbara, CA
Built 1916 Load: 15.6 t ADT: 11,250
STATE ROUTE 89
PoorOver: LAKE BRITTON
02-SHA-089-29.19, Shasta, CA
Built 1938 Load: 15.6 t ADT: 1,700
MIDDLE CREEK RD
PoorOver: MIDDLE CREEK
0.7 MI E OF IRON MTN RD, Shasta, CA
Built 1925 Load: 15.6 t ADT: 61
HARRY CASH ROAD
PoorOver: LITTLE SHASTA RIVER
0.25 MI S OF BALL MTN RD, Siskiyou, CA
Built 1920 Load: 15.6 t ADT: 353
STUHR ROAD
PoorOver: DELTA-MENDOTA CANAL
100' EAST OF BELL ROAD, Stanislaus, CA
Built 1949 Load: 15.6 t ADT: 2,184
NUESTRO RD
PoorOver: SNAKE RIVER
0.7 MI E OF E BUTTE RD, Sutter, CA
Built 1925 Load: 15.6 t ADT: 325
REEDS CREEK RD
PoorOver: BRUSH CREEK
1.2 MI W WILDER RD, Tehama, CA
Built 1930 Load: 15.6 t ADT: 1,660
STEINER FLAT ROAD
PoorOver: DUTTON CREEK
3.8 MI NW OF SR3 @D.CITY, Trinity, CA
Built 1950 Load: 15.6 t ADT: 100
ITALIAN BAR RD
PoorOver: ROSE CREEK
10.7 MI NE BIG HILL ROAD, Tuolumne, CA
Built 1925 Load: 15.6 t ADT: 20
ROAD 48
PoorOver: WILLOW CREEK
1.0 MI W/O ROAD 'D', Glenn, CA
Built 1935 Load: 15.9 t ADT: 87
ORNGE AV AND HILL
PoorOver: LBC BIKE PATH
0.5MI S/O WILLOW ST, Los Angeles, CA
Built 1932 Load: 15.9 t ADT: 17,663
BRYANT AVE
PoorOver: COLONY MAIN CANAL
0.05 MI S/O VALERIA AVE, Merced, CA
Built 1940 Load: 15.9 t ADT: 200
98TH AVE
PoorOver: SAN LEANDRO CREEK
0.3 MI W OF I 880, Alameda, CA
Built 1939 Load: 16.2 t ADT: 7,991
BELL ROAD
PoorOver: BIG INDIAN CREEK
0.15 MI E/O SH 49, Amador, CA
Built 1925 Load: 16.2 t ADT: 26
NEAL RD
PoorOver: NANCE CANYON
0.5 MI E OROVLE CHICO HWY, Butte, CA
Built 1920 Load: 16.2 t ADT: 400
LA GRANDE RD
PoorOver: GLENN-COLUSA CANAL
0.3 MI WEST DANLEY RD, Colusa, CA
Built 1940 Load: 16.2 t ADT: 42
GREEN VALLEY ROAD
PoorOver: MOUND SPRINGS CREEK
0.8 MI W MISSOURI FLAT R, El Dorado, CA
Built 1935 Load: 16.2 t ADT: 4,351
N GOLDEN STATE BL
PoorOver: HERNDON CANAL
0.05 MI SE OF BARSTOW, Fresno, CA
Built 1925 Load: 16.2 t ADT: 9,815
COUNTY ROAD 303
PoorOver: CLARK'S VALLEY CREEK
5.0 MI S RD 302, Glenn, CA
Built 1935 Load: 16.2 t ADT: 27
COUNTY ROAD 306
PoorOver: BRANCH STONY CREEK
9.98 MI N CO LINE, Glenn, CA
Built 1930 Load: 16.2 t ADT: 235
ANZA ROAD
PoorOver: ALL AMERICAN CANAL
1.65 MI W/O SR-111, Imperial, CA
Built 1936 Load: 16.2 t ADT: 800
BELL ACCESS RD
PoorOver: OAK CREEK
0.1 MI EOF BELL ACCESS RD, Inyo, CA
Built 1940 Load: 16.2 t ADT: 50
STATE ROUTE 1
PoorOver: REDWOOD CREEK
04-MRN-001-6.02, Marin, CA
Built 1926 Load: 16.2 t ADT: 3,900
ARROYA AVENUE
PoorOver: WEST DELTA CANAL
0.9 MI N OF SR 152, Merced, CA
Built 1930 Load: 16.2 t ADT: 40
MAIN CAMP FIRE RD
PoorOver: BIG SUR RIVER
PFEIFFER BIG SUR ST PARK, Monterey, CA
Built 2009 Load: 16.2 t ADT: 100
ROCK CREEK RD
PoorOver: ROCK CREEK
1 MI E OF RECTOR RD, Nevada, CA
Built 1920 Load: 16.2 t ADT: 80
MAIN ST
PoorOver: PILARCITOS CREEK
0.25 MI S/O SR 92, San Mateo, CA
Built 1900 Load: 16.2 t ADT: 2,350
GEYSERS ROAD
PoorOver: CAMACHO CREEK
24 MI N OF SR 128, Sonoma, CA
Built 1974 Load: 16.2 t ADT: 60
W. STANISLAUS ROAD
PoorOver: W STANISLAUS I.D. LAT 4
200' W HAMILTON RD, Stanislaus, CA
Built 1930 Load: 16.2 t ADT: 119
MONTE VISTA AVENUE
PoorOver: T.I.D. CERES MAIN CANAL
0.3 MI W FAITH HOME ROAD, Stanislaus, CA
Built 1914 Load: 16.2 t ADT: 473
LANGWORTH ROAD
PoorOver: M.I.D. MAIN CANAL
3 MI N MILNES RD, Stanislaus, CA
Built 1925 Load: 16.2 t ADT: 1,873
LARKIN RD
PoorOver: S BRNCH SUTTER-BUTTE CNL
0.2 MI N OF ENCINAL RD, Sutter, CA
Built 1925 Load: 16.2 t ADT: 1,159
NUESTRO ROAD
PoorOver: SUTTER CO EXTENSION CNL
0.8 MI E OF E BUTTE RD, Sutter, CA
Built 1940 Load: 16.2 t ADT: 325
3RD ST (CORNING)
PoorOver: THEMPER DITCH
0.5 MI N SOLANO RD, Tehama, CA
Built 1915 Load: 16.2 t ADT: 4,152
CORNING ROAD
PoorOver: SOUTH FORK JEWETT CREEK
1.3 MI W/D I-5, Tehama, CA
Built 1938 Load: 16.2 t ADT: 2,500
Showing 25,951-26,000 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |