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
INTERSTATE 8 WB
GoodOver: PEUTZ VALLEY RD
11-SD-008-R26.73, San Diego, CA
Built 1969 Load: 23.7 t ADT: 17,000
MESA GRANDE RD
GoodOver: N FK SANTA YSABEL CREEK
250 FT W/O SR 79, San Diego, CA
Built 1935 Load: 23.7 t ADT: 447
STATE ROUTE 88
GoodOver: MOSHER SLOUGH
10-SJ-088-7.53, San Joaquin, CA
Built 1925 Load: 23.7 t ADT: 15,859
ELLIOT ROAD
GoodOver: MOKELUMNE RIVER
1.0 MI S PELTIER RD, San Joaquin, CA
Built 1955 Load: 23.7 t ADT: 2,513
AIRPORT WAY
GoodOver: NORTH LITTLE JOHNS CREEK
0.15 MI N INDUSTRIAL WAY, San Joaquin, CA
Built 1961 Load: 23.7 t ADT: 13,100
US HIGHWAY 101 NB
GoodOver: PASO ROBLES CREEK
05-SLO-101-49.64, San Luis Obispo, CA
Built 1939 Load: 23.7 t ADT: 31,000
U.S. HIGHWAY 101
GoodOver: GUADALUPE RIVER
04-SCL-101-40.19-SJS, Santa Clara, CA
Built 1937 Load: 23.7 t ADT: 134,000
SAN ANTONIO VLY RD
GoodOver: SAN ANTONIO CREEK
1.8 MI S OF DEL PUERTO RD, Santa Clara, CA
Built 1966 Load: 23.7 t ADT: 50
INTERSTATE 5 NB
GoodOver: CORP RR & SISKIYOU AVE
02-SIS-005-R36.74, Siskiyou, CA
Built 1967 Load: 23.7 t ADT: 7,850
SCOTT RIVER RD
GoodOver: TOMPKINS CREEK
4 MI N KELSEY CREEK RD, Siskiyou, CA
Built 1965 Load: 23.7 t ADT: 39
VACA STATION ROAD
GoodOver: OLD ALAMO CREEK
0.2 MI S OF A ST, Solano, CA
Built 1949 Load: 23.7 t ADT: 352
BRIDGEWOOD DR
GoodOver: RINCON CREEK
0.1 MI N MTCTO BL SNTA R, Sonoma, CA
Built 1962 Load: 23.7 t ADT: 1,500
BROOKWOOD ROAD
GoodOver: SANTA ROSA CREEK
0.6 MI N OF RTE 12, Sonoma, CA
Built 1979 Load: 23.7 t ADT: 11,000
MOON ROAD
GoodOver: TEHAMA-COLUSA CANAL
0.15 MI EAST OF EAST AVE, Tehama, CA
Built 1965 Load: 23.7 t ADT: 410
STATE ROUTE 36
GoodOver: LOWER RATTLESNAKE CREEK
02-TRI-036-20.07, Trinity, CA
Built 1969 Load: 23.7 t ADT: 560
RD 168
GoodOver: N BRANCH TULE RIVER
1.4 MI N OF AVE 168, Tulare, CA
Built 1949 Load: 23.7 t ADT: 375
STATE ROUTE 126
GoodOver: STATE ROUTE 126
07-VEN-126-R34.24, Ventura, CA
Built 1998 Load: 23.7 t ADT: 30,000
ROUTE 980
GoodOver: 29TH STREET
04-ALA-980-1.64-OAK, Alameda, CA
Built 1969 Load: 24.0 t ADT: 57,500
STATE ROUTE 88
GoodOver: JACKSON CREEK
10-AMA-088-3.09, Amador, CA
Built 1940 Load: 24.0 t ADT: 9,200
INTERSTATE 5 NB
GoodOver: ARROYO HONDO
06-FRE-005-33.62, Fresno, CA
Built 1967 Load: 24.0 t ADT: 16,000
E CENTRAL AVE
GoodOver: (WAHTOKE) DIVERSION CHAN
WEST OF PEDERSON AVE, Fresno, CA
Built 1950 Load: 24.0 t ADT: 870
CO RD 302 \ CLARKS
GoodOver: NYE CREEK
0.1 MI S/W OF SH 162, Glenn, CA
Built 1981 Load: 24.0 t ADT: 46
STATE ROUTE 98
GoodOver: NEW RIVER
11-IMP-098-29.71, Imperial, CA
Built 1951 Load: 24.0 t ADT: 4,100
STATE ROUTE 111
GoodOver: CATTAIL WASH
11-IMP-111-44.48, Imperial, CA
Built 1950 Load: 24.0 t ADT: 3,600
STATE ROUTE 111
GoodOver: SIGNAL WASH
11-IMP-111-46.97, Imperial, CA
Built 1950 Load: 24.0 t ADT: 3,600
STATE ROUTE 111
GoodOver: BUTTER WASH
11-IMP-111-48.25, Imperial, CA
Built 1950 Load: 24.0 t ADT: 3,600
STATE ROUTE 98
GoodOver: ASH MAIN CANAL
11-IMP-098-38.14, Imperial, CA
Built 1939 Load: 24.0 t ADT: 14,295
STATE ROUTE 98
GoodOver: WORMWOOD CANAL
11-IMP-098-22.07, Imperial, CA
Built 1955 Load: 24.0 t ADT: 1,950
KALIN RD
GoodOver: NEW RIVER
0.5 MI S/O RUEGGER RD, Imperial, CA
Built 1940 Load: 24.0 t ADT: 300
INTERSTATE 405
GoodOver: DOMINGUEZ CHANNEL
07-LA-405-9.76-CRSN, Los Angeles, CA
Built 1962 Load: 24.0 t ADT: 237,800
N57-I10 CONNECTOR
GoodOver: SAN JOSE FLD CNTRL CHNNL
07-LA-057-R7.33-POM, Los Angeles, CA
Built 1972 Load: 24.0 t ADT: 30,000
RIVERSIDE DR
GoodOver: BURBANK WESTERN CHAN
0.8MI W/O I-5 FWY, Los Angeles, CA
Built 1940 Load: 24.0 t ADT: 6,592
COUNTY RD 29
GoodOver: CHOWCHILLA RIVER
13 MI E OF CHOWCHILLA, Madera, CA
Built 1975 Load: 24.0 t ADT: 71
TWIN BRIDGE RD
GoodOver: STEMPLE CREEK
0.22 MI N TMLES-PETLUM RD, Marin, CA
Built 1958 Load: 24.0 t ADT: 80
STATE ROUTE 175
GoodOver: RUSSIAN RIVER
01-MEN-175-0.45, Mendocino, CA
Built 1940 Load: 24.0 t ADT: 4,800
SHURTLEFF AVE
GoodOver: TULOCAY CR (CAYETANO CR)
AT WYATT RD, Napa, CA
Built 1925 Load: 24.0 t ADT: 2,836
VIA LIDO
GoodOver: WEST LIDO CHANNEL
0.3 MI. E/O NEWPORT BLVD, Orange, CA
Built 1930 Load: 24.0 t ADT: 12,500
DISNEYLAND FLYOVER
GoodOver: BALL ROAD
AT BALL ROAD, Orange, CA
Built 2000 Load: 24.0 t ADT: 26,000
INTERSTATE 10
GoodOver: MUD DITCH
08-RIV-010-R127.95, Riverside, CA
Built 1966 Load: 24.0 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: MUD DITCH
08-RIV-010-R127.95, Riverside, CA
Built 1966 Load: 24.0 t ADT: 10,700
INTERSTATE 15 SB
GoodOver: INDIAN WASH
08-RIV-015-30.09, Riverside, CA
Built 1980 Load: 24.0 t ADT: 60,500
INTERSTATE 15 NB
GoodOver: YODER WASH
08-RIV-015-9.83-TMCA, Riverside, CA
Built 1977 Load: 24.0 t ADT: 125,000
DESERT LAWN DRIVE
GoodOver: MID FK SAN TIMOTEO CREEK
0.2 MI S/O OAK VALLEY PWY, Riverside, CA
Built 1939 Load: 24.0 t ADT: 50
SBND RIVER ROAD
GoodOver: TEMESCAL CREEK CHANNEL
0.3 MI. NW/O MAIN STREET, Riverside, CA
Built 1971 Load: 24.0 t ADT: 3,000
SCOTT RD
GoodOver: CREVIS CREEK
0.05 MI N LATROBE RD, Sacramento, CA
Built 1979 Load: 24.0 t ADT: 2,459
WATERMAN AVE
GoodOver: UP RR & AMTRAK
.4 MI S/O I-10, San Bernardino, CA
Built 1961 Load: 24.0 t ADT: 31,190
OUTER H'WAY 15 N
GoodOver: FLARE DITCH
1 MI E FORT IRWIN RD, San Bernardino, CA
Built 1929 Load: 24.0 t ADT: 345
OASIS ROAD
GoodOver: CALIFORNIA AQUEDUCT
0.9 MI S OF PALMDALE RD, San Bernardino, CA
Built 1971 Load: 24.0 t ADT: 550
CENTRE CITY PARKWY
GoodOver: ESCONDIDO CREEK
.11M N/O VALLEY PKWY, San Diego, CA
Built 1948 Load: 24.0 t ADT: 39,100
CENTRE CITY PARKWY
GoodOver: ESCONDIDO CREEK
.11M N/O VALLEY PKWY, San Diego, CA
Built 1948 Load: 24.0 t ADT: 15,200
Showing 18,151-18,200 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.