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 5 NB
GoodOver: GARZAS CREEK
10-MER-005-32.11, Merced, CA
Built 1967 Load: 37.9 t ADT: 21,500
MOLERA RD
GoodOver: TEMBLADERO SLOUGH
0.8 MI S SR1, Monterey, CA
Built 1959 Load: 37.9 t ADT: 1,700
INTERSTATE 10
GoodOver: MISSION CREEK
08-RIV-010-34.73, Riverside, CA
Built 1955 Load: 37.9 t ADT: 87,000
INTERSTATE 10 WB
GoodOver: PINTO GULCH
08-RIV-010-R82.59, Riverside, CA
Built 1965 Load: 37.9 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: WARM CREEK
08-SBD-010-R23.60-COL, San Bernardino, CA
Built 1970 Load: 37.9 t ADT: 102,000
STATE HIGHWAY 138
GoodOver: BNSF RY, UP RR, AMTRAK
08-SBD-138-14.77, San Bernardino, CA
Built 1983 Load: 37.9 t ADT: 21,500
KADOTA AVENUE
GoodOver: SAN ANTONIO CREEK CHAN
0.2 MI N MISSION BLVD, San Bernardino, CA
Built 1958 Load: 37.9 t ADT: 1,000
STATE ROUTE 76
GoodOver: LA JOLLA AMAGO CREEK
11-SD-076-39.86, San Diego, CA
Built 1939 Load: 37.9 t ADT: 2,050
W52-S5 CONNECTOR
GoodOver: MTDB,BNSF RY,AMTRAK,ROSE
11-SD-052-0.37-SD, San Diego, CA
Built 1966 Load: 37.9 t ADT: 24,600
WEST ANDERSON DR
GoodOver: OLINDA CREEK
0.1 MI S OF SOUTH ST, Shasta, CA
Built 1979 Load: 37.9 t ADT: 800
WALKER ROAD
GoodOver: BARKHOUSE CREEK
1.05 MI E WALKER BR CONN, Siskiyou, CA
Built 1969 Load: 37.9 t ADT: 68
PONDOSA WAY
GoodOver: BEAR CREEK
0.8 MI N SR 89, Siskiyou, CA
Built 1977 Load: 37.9 t ADT: 39
STATE ROUTE 33
GoodOver: DEL PUERTO CREEK
10-STA-033-16.54, Stanislaus, CA
Built 1969 Load: 37.9 t ADT: 3,550
INTERSTATE 5 SB
GoodOver: HALL CREEK
02-TEH-005-R5.98, Tehama, CA
Built 1966 Load: 37.9 t ADT: 12,300
INTERSTATE 5 NB
GoodOver: HALL CREEK
02-TEH-005-R5.98, Tehama, CA
Built 1966 Load: 37.9 t ADT: 12,300
SOUTH AVE
GoodOver: SACRAMENTO RIV OVRFLO #3
2.8 MI W OF SH 99, Tehama, CA
Built 1958 Load: 37.9 t ADT: 6,552
STATE ROUTE 63
GoodOver: COTTONWOOD CREEK OVERFLO
06-TUL-063-17.69, Tulare, CA
Built 1969 Load: 37.9 t ADT: 5,900
ROAD 196
GoodOver: PEOPLES DITCH
1.75 MI N OF SR 198, Tulare, CA
Built 1949 Load: 37.9 t ADT: 1,300
ROAD 142
GoodOver: NORTH BRANCH TULE RIVER
0.65 MI S OF AVE 192, Tulare, CA
Built 1949 Load: 37.9 t ADT: 50
RAMP/CONNECTOR 33
GoodOver: CASITAS VISTA ROAD
07-VEN-033-R5.63, Ventura, CA
Built 1970 Load: 37.9 t ADT: 1,360
INTERSTATE 5
GoodOver: OAT CREEK
03-YOL-005-R21.84, Yolo, CA
Built 1968 Load: 37.9 t ADT: 11,200
SHASTA BALLY ROAD
GoodOver: UPPER BRANDY CREEK
4.7 miles SW of Hwy 299 (, Shasta, CA
Built 1998 Load: 38.1 t ADT: 30
STATE ROUTE 24 WB
GoodOver: COLLEGE AVE & FOREST ST
04-ALA-024-R3.55-OAK, Alameda, CA
Built 1970 Load: 38.2 t ADT: 143,000
STATE ROUTE 4
GoodOver: JACKASS GULCH
10-ALP-004-R7.82, Alpine, CA
Built 1982 Load: 38.2 t ADT: 1,250
MANGROVE AVE
GoodOver: BIG CHICO CREEK
BTW 3RD & VALLOMBROSA AVE, Butte, CA
Built 1958 Load: 38.2 t ADT: 18,700
INTERSTATE 5 SB
GoodOver: FUNKS CREEK
03-COL-005-R30.82, Colusa, CA
Built 1970 Load: 38.2 t ADT: 12,500
INTERSTATE 5
GoodOver: FUNKS CREEK
03-COL-005-R30.82, Colusa, CA
Built 1970 Load: 38.2 t ADT: 12,500
TAYLOR BLVD
GoodOver: CONTRA COSTA CANAL
0.8 MI W CONTRA COSTA BLV, Contra Costa, CA
Built 1961 Load: 38.2 t ADT: 12,300
U.S. HIGHWAY 101
GoodOver: WILSON CREEK
01-DN-101-12.64, Del Norte, CA
Built 1957 Load: 38.2 t ADT: 4,700
SOUTH FORK ROAD
GoodOver: BOULDER CREEK
9.2 MI SE JCT US 199, Del Norte, CA
Built 2009 Load: 38.2 t ADT: 344
INTERSTATE 5 SB
GoodOver: DOMENGINE UC
06-FRE-005-22.85, Fresno, CA
Built 1968 Load: 38.2 t ADT: 16,500
W JAYNE AVE
GoodOver: ZAPATO CHINO CREEK
1.6 MI WEST OF I-5, Fresno, CA
Built 1970 Load: 38.2 t ADT: 4,400
COUNTY ROAD 'D'
GoodOver: S FK WILLOW CREEK
2.2 MI N S.H. 162, Glenn, CA
Built 1967 Load: 38.2 t ADT: 491
JACKSON RANCH RD
GoodOver: LISCOMB SLOUGH
0.25 MI S FOSTER AVE, Humboldt, CA
Built 1960 Load: 38.2 t ADT: 327
STATE ROUTE 170
GoodOver: MAGNOLIA BLVD
07-LA-170-R15.37-LA, Los Angeles, CA
Built 1962 Load: 38.2 t ADT: 184,000
W138-S5 & N5-E138
GoodOver: QUAIL LAKE ROAD
07-LA-138-0.24L, Los Angeles, CA
Built 1967 Load: 38.2 t ADT: 4,450
RAMP/CONNECTOR 210
GoodOver: BIG DALTON WASH
07-LA-210-R41.87-GDR, Los Angeles, CA
Built 1969 Load: 38.2 t ADT: 9,500
ROUTE 105 & LRT
GoodOver: COMPTON CREEK
07-LA-105-R8.98-COM, Los Angeles, CA
Built 1988 Load: 38.2 t ADT: 220,000
SOUTH ST
GoodOver: SAN GABRIEL RIV
0.4MI W/O I-605 FWY, Los Angeles, CA
Built 1952 Load: 38.2 t ADT: 55,839
WILLOW ST
GoodOver: SAN GABRIEL RIV
0.5MI W/O I-605 FWY, Los Angeles, CA
Built 1962 Load: 38.2 t ADT: 28,620
SAN FRCSQUTO CN RD
GoodOver: SAN FRANCISQUITO CYN CRK
0.5MI S/O WAT POWER PNS, Los Angeles, CA
Built 1944 Load: 38.2 t ADT: 4,458
GLENOAKS BLVD
GoodOver: TUJUNGA WASH
0.19 MI N OF TRUESDALE, Los Angeles, CA
Built 1953 Load: 38.2 t ADT: 22,125
OAK CYN RD
GoodOver: WALNUT CRK
0.1MI S/O COVINA HILLS RD, Los Angeles, CA
Built 1963 Load: 38.2 t ADT: 101
SIERRA HWY
GoodOver: SOLEMINT OH SPTCO
0.5MI S/O SOLEDAD CYN RD, Los Angeles, CA
Built 1968 Load: 38.2 t ADT: 35,700
ROBINSON CANYON RD
GoodOver: POTRERO CREEK
0.5 MI S OF G16, Monterey, CA
Built 1971 Load: 38.2 t ADT: 3,600
STAGE ROAD
GoodOver: COYOTE CREEK CHANNEL
0.1 MI. NW/O BEACH BLVD., Orange, CA
Built 1960 Load: 38.2 t ADT: 9,000
INTERSTATE 10 WB
GoodOver: SUNNY GULCH
08-RIV-010-R66.18, Riverside, CA
Built 1964 Load: 38.2 t ADT: 11,250
EMERALD VISTA DR
GoodOver: DEADMAN GULCH N BRANCH
50 FT S OF WINN DR, Sacramento, CA
Built 1986 Load: 38.2 t ADT: 1,000
STATE ROUTE 25
GoodOver: SAN BENITO RIVER
05-SBT-025-R30.05, San Benito, CA
Built 1955 Load: 38.2 t ADT: 760
SEVENTH ST
GoodOver: SANTA MARIA CREEK
0.2 MI N/O ROUTE 78, San Diego, CA
Built 1955 Load: 38.2 t ADT: 5,600
Showing 24,451-24,500 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 |