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
QUINCY JUNCTION RD
FairOver: GREENHORN CREEK
2.2 MI N OF S.H. 70, Plumas, CA
Built 1955 Load: 34.7 t ADT: 930
SETZER CAMP RD
FairOver: WOLF CREEK
200 FT S OF SH 89, Plumas, CA
Built 1957 Load: 34.7 t ADT: 100
TANGERINE AVE
FairOver: ELDER CREEK
0.1 MI N OF MACK ROAD, Sacramento, CA
Built 1966 Load: 34.7 t ADT: 4,257
CALIFORNIA ST
FairOver: WILDWOOD CREEK
0.15 MI S AVE 'F', San Bernardino, CA
Built 1960 Load: 34.7 t ADT: 7,171
STATE ROUTE 78
FairOver: SAN FELIPE CREEK
11-SD-078-72.92, San Diego, CA
Built 1948 Load: 34.7 t ADT: 1,850
U.S. HIGHWAY 101
FairOver: ALANA WAY
04-SF-101-0.01-SF, San Francisco, CA
Built 1954 Load: 34.7 t ADT: 199,000
STATE ROUTE 4
FairOver: MIDDLE RIVER
10-SJ-004-4.42, San Joaquin, CA
Built 1915 Load: 34.7 t ADT: 7,200
INTERSTATE 580 WB
FairOver: VALLEY VIEW RD
10-SJ-580-11.30, San Joaquin, CA
Built 1966 Load: 34.7 t ADT: 13,300
HIBBARD ROAD
FairOver: SOUTH PADDY CREEK
0.4 MI N OF ATKINSON, San Joaquin, CA
Built 1964 Load: 34.7 t ADT: 205
LIVE OAK RD
FairOver: BEAR CREEK
0.7 MI E ALPINE RD, San Joaquin, CA
Built 1963 Load: 34.7 t ADT: 431
HARNEY LANE
FairOver: NORTH PADDY CREEK
0.5 MI E OF S.H.88, San Joaquin, CA
Built 1964 Load: 34.7 t ADT: 1,882
HARNEY LANE
FairOver: BEAR CREEK
0.03 MI E OF S.H. 88, San Joaquin, CA
Built 1964 Load: 34.7 t ADT: 1,882
24TH ST
FairOver: UP RR & AMTRAK
0.18 MI E SPRING ST, San Luis Obispo, CA
Built 1959 Load: 34.7 t ADT: 15,682
SALMON RIVER ROAD
FairOver: NORDHEIMER CREEK
4 MI N/O SAWYERS BAR RD, Siskiyou, CA
Built 1967 Load: 34.7 t ADT: 93
S101-WASHINGTON
FairOver: WASHINGTON STREET CREEK
04-SON-101-4.80-PET, Sonoma, CA
Built 1955 Load: 34.7 t ADT: 3,400
STATE ROUTE 12
FairOver: DUTTON AVE
04-SON-012-R15.30, Sonoma, CA
Built 1964 Load: 34.7 t ADT: 36,500
STATE ROUTE 12
FairOver: DUTTON AVE
04-SON-012-R15.30, Sonoma, CA
Built 1964 Load: 34.7 t ADT: 36,500
STATE ROUTE 12
FairOver: BRIGHAM AVE
04-SON-012-R17.10-SRO, Sonoma, CA
Built 1969 Load: 34.7 t ADT: 30,000
STATE ROUTE 12
FairOver: MATANZAS CREEK
04-SON-012-T17.77-SRO, Sonoma, CA
Built 1968 Load: 34.7 t ADT: 40,750
TALBOT AVE
FairOver: SANTA ROSA CREEK
JUST S INTRX WITH 4TH AVE, Sonoma, CA
Built 1953 Load: 34.7 t ADT: 1,000
DEL PUERTO CNYN RD
FairOver: DEL PUERTO CREEK
11.0 MI W/O I- 5, Stanislaus, CA
Built 1959 Load: 34.7 t ADT: 250
ORESTIMBA ROAD
FairOver: CALIFORNIA AQUEDUCT
1.1 MI WEST OF I-5, Stanislaus, CA
Built 1966 Load: 34.7 t ADT: 83
STATE ROUTE 36
FairOver: LONG GULCH
02-TEH-036-23.05, Tehama, CA
Built 1964 Load: 34.7 t ADT: 407
BARHAM AVENUE
FairOver: JEWETT CREEK
0.1 MI S CORNING RD, Tehama, CA
Built 1966 Load: 34.7 t ADT: 148
WOODSON AVENUE
FairOver: BRANNIN CREEK
AT OLIVEWOOD AVE, Tehama, CA
Built 1952 Load: 34.7 t ADT: 194
PONDEROSA WAY
FairOver: JUDD CREEK
0.4 MI S PLUM CREEK RD, Tehama, CA
Built 1940 Load: 34.7 t ADT: 154
STATE ROUTE 3
FairOver: TRINITY RIVER
02-TRI-003-74.12, Trinity, CA
Built 1969 Load: 34.7 t ADT: 200
ROAD 196/KAWEAH AV
FairOver: KAWEAH RIVER
2.3 MI N OF SR 198, Tulare, CA
Built 1949 Load: 34.7 t ADT: 1,150
U.S. HIGHWAY 101
FairOver: ARROYO CALLEGUAS
07-VEN-101-12.76-CMRL, Ventura, CA
Built 1987 Load: 34.7 t ADT: 136,000
STATE ROUTE 126
FairOver: PIRU CREEK
07-VEN-126-R28.82, Ventura, CA
Built 1940 Load: 34.7 t ADT: 30,000
TELEGRAPH RD
FairOver: ADAMS BARRANCA
0.8 MI W PECK RD, Ventura, CA
Built 1916 Load: 34.7 t ADT: 4,500
STATE ROUTE 16
FairOver: RUMSEY CANYON
03-YOL-016-6.36, Yolo, CA
Built 1955 Load: 34.7 t ADT: 1,100
HOPYARD ST
FairOver: ARROYO DEL VALLE
SOUTH OF DEL VALLE PKWY, Alameda, CA
Built 1951 Load: 35.0 t ADT: 7,600
WHITMAN ST
FairOver: ORCHARD AVE
ORCHARD AVE, Alameda, CA
Built 1970 Load: 35.0 t ADT: 8,226
INTERSTATE 5 SB
FairOver: SALT CREEK DR
03-COL-005-R7.70, Colusa, CA
Built 1967 Load: 35.0 t ADT: 15,000
INTERSTATE 5 NB
FairOver: SALT CREEK DR
03-COL-005-R7.70, Colusa, CA
Built 1967 Load: 35.0 t ADT: 15,000
SR 160 NB
FairOver: WILBUR AVENUE
04-CC-160-1.50, Contra Costa, CA
Built 1971 Load: 35.0 t ADT: 6,800
GIANT HWY
FairOver: SAN PABLO CREEK
AT PARR BLVD, Contra Costa, CA
Built 1981 Load: 35.0 t ADT: 5,000
BASS AVE
FairOver: CCID MAIN CANAL
1.9 MI N/E OF SR 33, Fresno, CA
Built 1959 Load: 35.0 t ADT: 500
E FLORAL AVE
FairOver: FOWLER SWITCH CANAL
0.7 MI E OF FOWLER AVE, Fresno, CA
Built 1964 Load: 35.0 t ADT: 2,200
BRICELAND THORN RD
FairOver: VANARKEN CREEK
1.0 MI S SHELTER COVE RD, Humboldt, CA
Built 1961 Load: 35.0 t ADT: 420
INTERSTATE 8 EB
FairOver: WESTSIDE MAIN CANAL
11-IMP-008-R25.11, Imperial, CA
Built 1968 Load: 35.0 t ADT: 6,100
ARAZ ROAD (CR S24)
FairOver: ALL AMERICAN CANAL
0.9 MI N/O I-8 EXIT 166, Imperial, CA
Built 1936 Load: 35.0 t ADT: 500
STATE ROUTE 58
FairOver: CALIFORNIA AQUEDUCT
06-KER-058-23.03, Kern, CA
Built 1967 Load: 35.0 t ADT: 1,250
KERN RIVER CYN RD
FairOver: CLEAR CREEK
AT MIRACLE HOT SPRINGS, Kern, CA
Built 1951 Load: 35.0 t ADT: 130
5 1/2 AVE
FairOver: COLE SLOUGH
0.5 MI S OF BOSTON AVE, Kings, CA
Built 1962 Load: 35.0 t ADT: 2,587
10TH AVENUE
FairOver: TULE RIVER
2.5 MI S OF PUEBLO AVE, Kings, CA
Built 1967 Load: 35.0 t ADT: 713
STATE ROUTE 53
FairOver: SEIGLER CREEK
01-LAK-053-0.02, Lake, CA
Built 1952 Load: 35.0 t ADT: 16,500
STATE ROUTE 14
FairOver: 20TH STREET WEST
07-LA-014-R67.48-LAN, Los Angeles, CA
Built 1972 Load: 35.0 t ADT: 22,500
N110-E91 CONNECTOR
FairOver: ACCESS RD
07-LA-110-9.76-LA, Los Angeles, CA
Built 1985 Load: 35.0 t ADT: 34,001
Showing 15,151-15,200 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.