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
S ENGLEHART AVE
FairOver: TRAVERS CREEK
0.7 MI S/O MANNING AVE, Fresno, CA
Built 1945 Load: 74.8 t ADT: 485
ANAPOLIS RD
FairOver: WHEATFIELD FK GUALALA RI
1.7 MI E/O SR 1, Sonoma, CA
Built 1974 Load: 74.8 t ADT: 400
HAZEL AVE
FairOver: SAN LORENZO CREEK
JUST NE OF MAIN ST, Alameda, CA
Built 1925 Load: 75.2 t ADT: 2,878
JEFFREY ROAD SBND
FairOver: SAN DIEGO CREEK CHANNEL
0.2 MI S BARRANCA PKWAY, Orange, CA
Built 1980 Load: 75.2 t ADT: 24,600
PREFUMO CANYON RD
FairOver: PREFUMO CANYON CREEK
2.0 MI W LOS OSOS VLLY RD, San Luis Obispo, CA
Built 1974 Load: 75.2 t ADT: 300
SHASTA BLVD
FairOver: JUNIPER GULCH
0.1 MI S OF 68TH AVE, Tehama, CA
Built 1956 Load: 75.2 t ADT: 162
INTERSTATE 15
FairOver: EAST FORK CAJON CREEK
08-SBD-015-R20.67, San Bernardino, CA
Built 1969 Load: 76.1 t ADT: 158,000
REDLANDS AVE
FairOver: TRUCKEE CREEK
0.4 MI S POMONA AVE, Tehama, CA
Built 1958 Load: 76.5 t ADT: 200
SLOUGH RD
FairOver: LOWER PARKS CREEK
4.1 MI S OF LOUIE RD, Siskiyou, CA
Built 1975 Load: 76.8 t ADT: 7
STATE ROUTE 3
FairOver: GRAVES CREEK
02-TRI-003-77.17, Trinity, CA
Built 1971 Load: 77.1 t ADT: 200
CAMP SACRAMENTO RD
FairOver: SOUTH FK AMERICAN RIVER
0.1 MI S/O U.S. 50, El Dorado, CA
Built 1988 Load: 78.1 t ADT: 80
CECILVILLE ROAD
FairOver: SOUTH FORK SALMON RIVER
0.1 MI S/O SALMON RIVER R, Siskiyou, CA
Built 1986 Load: 78.1 t ADT: 116
UPPER BEAR RIV RD
FairOver: BEAR RIVER
6.4 MI S OF MATTOLE ROAD, Humboldt, CA
Built 1960 Load: 78.7 t ADT: 27
OAK ROAD
FairOver: BEAR CREEK
0.05 MI SW OF SR 140, Mariposa, CA
Built 1985 Load: 78.7 t ADT: 130
STATE ROUTE 62
FairOver: COLORADO RIVER
08-SBD-062-142.30, San Bernardino, CA
Built 2015 Load: 79.4 t ADT: 6,200
BARTLETT SPRGS RD
FairOver: KILPEPPER CREEK
12 MI N OF SR 20, Lake, CA
Built 1960 Load: 80.4 t ADT: 103
REFUGIO RD-N101 ON
FairOver: CANADA DEL REFUGIO
05-SB-101-R36.65, Santa Barbara, CA
Built 1974 Load: 80.4 t ADT: 250
MCCABE ROAD
FairOver: DELTA-MENDOTA CANAL
1.0 MI WEST OF I-5, Merced, CA
Built 1949 Load: 80.7 t ADT: 453
INDIAN CREEK ROAD
FairOver: INDIAN CREEK
6.9 MI E REDDING CREEK RD, Trinity, CA
Built 1955 Load: 81.0 t ADT: 20
E FRK RD
FairOver: SUSANA CYN CRK
2.2MI E/O SAN G CYN RD, Los Angeles, CA
Built 1942 Load: 81.3 t ADT: 2,000
JEFFERSON BLVD
FairOver: CENTINELA CREEK
0.2 MI N OF I-405, Los Angeles, CA
Built 1962 Load: 81.3 t ADT: 39,900
INTERSTATE 10
FairOver: SAN GORGONIO OVERFLOW
08-RIV-010-R16.23-BAN, Riverside, CA
Built 1940 Load: 81.6 t ADT: 120,000
Auberry Road
FairOver: Friant-Kern Canal
5 mi S of Millerton Lk, Fresno, CA
Built 1947 Load: 82.0 t ADT: 50
RALPHS RANCH RD.
FairOver: UNNAMED WASH
0.1MI W/O I-5 FWY, Los Angeles, CA
Built 1970 Load: 84.2 t ADT: 1,530
RIVER BLVD
FairOver: MADRONE MILL CREEK
0.3 MI N BOHEMIAN HWY, Sonoma, CA
Built 1974 Load: 84.2 t ADT: 900
MOOR PARK ST
FairOver: WEST BRANCH TUJUNGA WASH
RADFORD AVE & GENTRY AV, Los Angeles, CA
Built 1951 Load: 86.2 t ADT: 25,300
PLEASANT VALLEY RD
FairOver: REVOLON SLOUGH
0.3 MI S OF 5TH ST, Ventura, CA
Built 1979 Load: 87.8 t ADT: 11,800
FISH LAKE ROAD
FairOver: E. FORK SALMON RIVER
CALLAHAN, Siskiyou, CA
Built 1966 Load: 90.8 t ADT: 15
WRIGHTS LAKE ROAD
FairOver: BOULDER CREEK
SCOTT BAR, Siskiyou, CA
Built 1967 Load: 90.8 t ADT: 50
MESMER AVE
FairOver: CENTINELA CREEK
500FT N/O JEFFERSON BLVD, Los Angeles, CA
Built 1962 Load: 92.7 t ADT: 3,000
STATE ROUTE 85
FairOver: STEVENS CREEK
04-SCL-085-R20.96-MVW, Santa Clara, CA
Built 1965 Load: 94.3 t ADT: 115,000
INTERSTATE 5
FairOver: UP RR SPUR
03-SAC-005-22.25-SAC, Sacramento, CA
Built 1970 Load: 96.2 t ADT: 138,000
BIG CUT RD
FairOver: WEBER CREEK
1.2 MI N/O PLEASANT V RD, El Dorado, CA
Built 1922 Load: 96.6 t ADT: 857
EDISON HIGHWAY
FairOver: EAST SIDE CANAL
EAST OF WEBSTER ST, Kern, CA
Built 1955 Load: 97.2 t ADT: 6,900
SOCRATES MINE RD
FairOver: GUNNING CREEK
1.9 MI W/O STATE RTE 175, Lake, CA
Built 1981 Load: 97.2 t ADT: 546
INTERSTATE 15
FairOver: ORO GRANDE WASH
08-SBD-015-39.04-VCTV, San Bernardino, CA
Built 1954 Load: 97.2 t ADT: 100,000
SAND HILL RD
FairOver: BEAR GULCH CREEK
SOUTH WHISKEY HILL RD, San Mateo, CA
Built 1950 Load: 97.2 t ADT: 7,137
STATE ROUTE 4
FairOver: EBMUD SERVICE ROAD
04-CC-004-R14.45-CND, Contra Costa, CA
Built 1978 Load: 99.8 t ADT: 62,000
COLUMBIA WAY
FairOver: UNNAMED WASH
200FT E/O SIERRA HWY, Los Angeles, CA
Built 1950 Load: 99.8 t ADT: 18,616
NORDOFF ST
FairOver: BROWN CANYON WASH
0.3 MI E/O CANOGA AVE, Los Angeles, CA
Built 1971 Load: 99.8 t ADT: 25,975
PARTHENIA ST
FairOver: BROWNS CANYON WASH
0.48 KM E/O CANOGA AVE, Los Angeles, CA
Built 1972 Load: 99.8 t ADT: 8,727
SAN DIMAS AVE
FairOver: WALNUT CRK
0.5MI E/O I-210 FWY, Los Angeles, CA
Built 1979 Load: 99.8 t ADT: 7,519
ALISO CN RD N/XING
FairOver: ALISO CYN CRK
1.4MI W/O ANGELES FOR HWY, Los Angeles, CA
Built 1978 Load: 99.8 t ADT: 1,273
TUMBLEWEED RD
FairOver: CRUTHERS CRK
0.3MI E/O LONGVIEW RD, Los Angeles, CA
Built 1956 Load: 99.8 t ADT: 459
KANAN DUME RD
FairOver: NEWTON CYN
4.4MI N/O SR-1 HWY, Los Angeles, CA
Built 1960 Load: 99.8 t ADT: 12,669
LANCASTER RD
FairOver: UNNAMED WASH
AT 190TH ST W, Los Angeles, CA
Built 1976 Load: 99.8 t ADT: 408
INTERSTATE 15
FairOver: BNSF RY & UP RR
08-SBD-015-R22.67, San Bernardino, CA
Built 1969 Load: 99.8 t ADT: 158,000
ANAPOLIS RD
FairOver: SOUTH FORK GUALALA RIVER
1.5 MI E/O SR 1, Sonoma, CA
Built 1974 Load: 99.8 t ADT: 400
AMADOR VALLEY BLVD
FairOver: ALAMO CREEK
W OF DOUGHTERTY RD, Alameda, CA
Built 1965 Load: 99.9 t ADT: 12,680
INTERSTATE 80
FairOver: WILDCAT CREEK
04-CC-080-3.99-SPB, Contra Costa, CA
Built 1956 Load: 99.9 t ADT: 179,000
Showing 16,951-17,000 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.