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
GENERALS HIGHWAY (
FairOver: HALSTEAD MEADOW
3.6 MILES WEST OF LODGEPO, Tulare, CA
Built 2012 Load: 43.5 t ADT: 662
MORAGA BLVD
FairOver: LAS TRAMPAS CREEK
WEST OF CAROL LANE, Contra Costa, CA
Built 1970 Load: 43.7 t ADT: 1,590
CENTERVILLE ROAD
FairOver: FLEENER CREEK
2.3 MI WEST OF POOLE RD, Humboldt, CA
Built 1952 Load: 43.7 t ADT: 444
INTERSTATE 210
FairOver: PACOIMA WASH
07-LA-210-R5.14-LA, Los Angeles, CA
Built 1975 Load: 43.7 t ADT: 121,000
VALLEY BLVD
FairOver: PUENTE CRK
0.4MI E/O SUNSET AVE, Los Angeles, CA
Built 1956 Load: 43.7 t ADT: 37,871
ROSECRANS AVE
FairOver: COMPTON CRK
0.3MI W/O WILMINGTON AVE, Los Angeles, CA
Built 1938 Load: 43.7 t ADT: 36,146
LARK ELLEN AVE
FairOver: LITTLE DALTON WASH
0.4MI N/O ARROW HWY, Los Angeles, CA
Built 1961 Load: 43.7 t ADT: 5,717
LEMON AVE
FairOver: SAWPIT WASH
250FT E/O MOUNTAIN AVE, Los Angeles, CA
Built 1964 Load: 43.7 t ADT: 3,529
WESTRIDGE RD
FairOver: ARROYO CANYON
210 M W/O MANDVLE CYN RD, Los Angeles, CA
Built 1928 Load: 43.7 t ADT: 4,000
FAIRWAY DR
FairOver: SAN JOSE CRK
0.6MI N/O SR-60 FWY, Los Angeles, CA
Built 1983 Load: 43.7 t ADT: 12,647
STATE ROUTE 140
FairOver: MERCED RIVER
10-MPA-140-42.10, Mariposa, CA
Built 2008 Load: 43.7 t ADT: 1,400
BEAR VALLEY ROAD
FairOver: BURNS CREEK
2.2 MI NE HORNITOS RD, Mariposa, CA
Built 1961 Load: 43.7 t ADT: 190
INTERSTATE 5 SB
FairOver: ORTIGALITA CREEK
10-MER-005-8.89, Merced, CA
Built 1971 Load: 43.7 t ADT: 15,500
INTERSTATE 5 NB
FairOver: ORTIGALITA CREEK
10-MER-005-8.89, Merced, CA
Built 1971 Load: 43.7 t ADT: 20,750
INTERSTATE 5 SB
FairOver: BEAVER SLOUGH
10-SJ-005-45.87, San Joaquin, CA
Built 1979 Load: 43.7 t ADT: 25,000
STATE ROUTE 227
FairOver: EAST CORRAL DE PIEDRA CR
05-SLO-227-7.10, San Luis Obispo, CA
Built 1978 Load: 43.7 t ADT: 5,650
COX AVE
FairOver: SARATOGA CREEK
NEAR SARATOGA AVE, Santa Clara, CA
Built 1963 Load: 43.7 t ADT: 10,469
DEER CR AVE
FairOver: SALT CREEK
0.2 MI W I-5, Shasta, CA
Built 1960 Load: 43.7 t ADT: 100
WESTSIDE ROAD
FairOver: SQUAW CREEK
5.2 MI W SHASTA DAM, Shasta, CA
Built 1954 Load: 43.7 t ADT: 50
INTERSTATE 5 NB
FairOver: UP RR & AMTRAK
02-SIS-005-R9.20, Siskiyou, CA
Built 1964 Load: 43.7 t ADT: 20,000
STATE ROUTE 3
FairOver: WILDCAT CREEK
02-SIS-003-9.75, Siskiyou, CA
Built 1958 Load: 43.7 t ADT: 925
INTERSTATE 80 WB
FairOver: ULATIS CREEK
04-SOL-080-R26.61-VAC, Solano, CA
Built 1952 Load: 43.7 t ADT: 70,500
SANTA ROSA AVE
FairOver: HILLSIDE
1/4 MI E OLD MONTE RIO RD, Sonoma, CA
Built 1990 Load: 43.7 t ADT: 100
FORT ROSS RD.
FairOver: HILLSIDE
0.65MI W OF KING RIDGE RD, Sonoma, CA
Built 1999 Load: 43.7 t ADT: 200
STATE ROUTE 36
FairOver: NORTH FORK DEER CREEK
02-TEH-036-R98.92, Tehama, CA
Built 1966 Load: 43.7 t ADT: 1,100
SB 23- SB 101
FairOver: THOUSAND OAKS BLVD
07-VEN-023-R3.56-THOK, Ventura, CA
Built 1970 Load: 43.7 t ADT: 24,500
GOLD STRIKE ROAD
FairOver: NORTH FORK CALAVERAS RIV
0.4 MI SW OF SR 49, Calaveras, CA
Built 1951 Load: 44.1 t ADT: 887
STATE ROUTE 211
FairOver: SALT RIVER OVERFLOW
01-HUM-211-R74.64, Humboldt, CA
Built 1964 Load: 44.1 t ADT: 5,700
INTERSTATE 8 WB
FairOver: MYER CREEK
11-IMP-008-R9.19L, Imperial, CA
Built 1978 Load: 44.1 t ADT: 7,105
GRANITE RD
FairOver: POSO CREEK
0.8 MI S OF S.H. 155, Kern, CA
Built 1979 Load: 44.1 t ADT: 280
STATE ROUTE 20
FairOver: CLOVER CREEK
01-LAK-020-8.89, Lake, CA
Built 1975 Load: 44.1 t ADT: 8,000
ROUTE 5
FairOver: PENROSE STREET
07-LA-005-34.28-LA, Los Angeles, CA
Built 1961 Load: 44.1 t ADT: 187,358
STATE ROUTE 71
FairOver: SAN JOSE FC CHNL
07-LA-071-R1.04-POM, Los Angeles, CA
Built 1972 Load: 44.1 t ADT: 63,100
MISSION RD
FairOver: ALHAMBRA WASH
0.5MI E/O CHAPEL AVE, Los Angeles, CA
Built 1938 Load: 44.1 t ADT: 22,260
106TH ST E
FairOver: CALIFORNIA AQUEDUCT
0.3MI N/O SR-138 HWY, Los Angeles, CA
Built 1968 Load: 44.1 t ADT: 306
U.S. HIGHWAY 395
FairOver: NORTH FORK PIT RIVER
02-MOD-395-21.88-ALT, Modoc, CA
Built 1971 Load: 44.1 t ADT: 2,000
WESTMINSTER AVE
FairOver: BOLSA CHICA CHANNEL
100' W BOLSA CHICA RD, Orange, CA
Built 1959 Load: 44.1 t ADT: 22,250
38TH STREET
FairOver: RIVO ALTO
0.1 MI. NE/O BALBOA BLVD., Orange, CA
Built 1973 Load: 44.1 t ADT: 3,200
INTERSTATE 40
FairOver: "S" STREET CHANNEL
08-SBD-040-R141.47-NED, San Bernardino, CA
Built 1973 Load: 44.1 t ADT: 7,350
E ST
FairOver: SANTA ANA RIVER
0.8 MI S ORANGE SHOW RD, San Bernardino, CA
Built 1977 Load: 44.1 t ADT: 14,958
BENITO STREET
FairOver: SAN ANTONIO CREEK CHAN
0.3 MI E OF LA CO LINE, San Bernardino, CA
Built 1958 Load: 44.1 t ADT: 2,300
STATE ROUTE 166
FairOver: CUYAMA RIVER
05-SLO-166-22.86, San Luis Obispo, CA
Built 1959 Load: 44.1 t ADT: 2,600
BITTERWATER ROAD
FairOver: CHOLAME CREEK
WEST OF SH 46, San Luis Obispo, CA
Built 1979 Load: 44.1 t ADT: 112
SAN TOMAS EXPWY
FairOver: UP RR & CALTRAIN
0.2 MI NORTH OF MONROE ST, Santa Clara, CA
Built 1967 Load: 44.1 t ADT: 65,780
O'DAY ROAD
FairOver: SWEENEY CREEK
ADJ TO I-80, Solano, CA
Built 1963 Load: 44.1 t ADT: 98
SONOMA MTN RD
FairOver: HILLSIDE
1.27 MI S/O BENNETT V RD, Sonoma, CA
Built 2011 Load: 44.1 t ADT: 600
BROWNS MOUNTAIN RD
FairOver: TRINITY RIVER
0.3 MI W LEWISTON RD, Trinity, CA
Built 1983 Load: 44.1 t ADT: 200
STATE ROUTE 120
FairOver: MOCCASIN CREEK
10-TUO-120-R24.09, Tuolumne, CA
Built 1971 Load: 44.1 t ADT: 4,400
US HIGHWAY 101 NB
FairOver: UP RR, AMTRAK, & LEMON
07-VEN-101-27.25-VEN, Ventura, CA
Built 1961 Load: 44.1 t ADT: 64,500
BIGGS EAST HIGHWAY
FairOver: SUTTER-BUTTE CANAL
0.9 MI E/O RTE 99, Butte, CA
Built 1956 Load: 44.4 t ADT: 1,060
Showing 16,201-16,250 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.