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
MEYERS ROAD
FairOver: DRY CREEK
0.3 MI E DESCHUTES RD, Shasta, CA
Built 1960 Load: 56.7 t ADT: 200
ANDERSON GRADE RD
FairOver: YREKA CREEK
0.1 MI E OF SR 263, Siskiyou, CA
Built 1971 Load: 56.7 t ADT: 90
EXCELSIOR AVE
FairOver: FRESNO SLOUGH
.1 MI W/O GRANTLAND AVE, Fresno, CA
Built 1970 Load: 57.0 t ADT: 90
MATTOLE ROAD
FairOver: BEAR RIVER
SOUTH OF PRESCOTT ROAD, Humboldt, CA
Built 1974 Load: 57.0 t ADT: 231
STATE ROUTE 120
FairOver: HILLSIDE
09-MNO-120-R3.71, Mono, CA
Built 1966 Load: 57.0 t ADT: 5,320
ROCKLIN RD
FairOver: SECRET RAVINE
0.3 MI E OF I-80, Placer, CA
Built 1983 Load: 57.0 t ADT: 5,700
STATE ROUTE 86 NB
FairOver: ANITA DITCH
08-RIV-086-0.84, Riverside, CA
Built 1979 Load: 57.0 t ADT: 15,300
INTERSTATE 10 WB
FairOver: ARZC RR & MAIN STREET
08-RIV-010-R152.43-BLY, Riverside, CA
Built 1972 Load: 57.0 t ADT: 26,000
ISLAND ROAD
FairOver: SCOTT RIVER OVERFLOW
0.5 MI E HOLZHAUSER LANE, Siskiyou, CA
Built 1977 Load: 57.0 t ADT: 158
REEDS CREEK RD
FairOver: MIDDLE FORK REEDS CREEK
6.6 MI E PETTYJOHN RD, Tehama, CA
Built 1951 Load: 57.0 t ADT: 1,660
STATE ROUTE 118
FairOver: MEJICO CREEK
07-VEN-118-14.53, Ventura, CA
Built 1978 Load: 57.0 t ADT: 22,000
WEST SIDE ROAD
FairOver: SOUTH FORK KINGS RIVER
KINGS CANYON HWY. MP 28.8, Fresno, CA
Built 2013 Load: 57.1 t ADT: 300
STATE HIGHWAY 41
FairOver: SOUTH FORK MERCED RIVER
0.1 mile south from Range, Mariposa, CA
Built 2007 Load: 57.1 t ADT: 2,403
DISNEY PARKING ROA
FairOver: EAST FORK KAWEAH RIVER
24 MI. EAST OF JCT. HWY., Tulare, CA
Built 2013 Load: 57.1 t ADT: 20
ELKHORN GRADE
FairOver: STINSON CANAL
0.55 MI N OF CERINI AVE, Fresno, CA
Built 1925 Load: 57.3 t ADT: 50
ROAD 67
FairOver: ANGEL SLOUGH
0.2 MI E OF CO RD Z, Glenn, CA
Built 1972 Load: 57.3 t ADT: 91
KEYSTONE RD
FairOver: ALAMO RIVER
1.5 MI E/O MCCONNELL RD, Imperial, CA
Built 1979 Load: 57.3 t ADT: 922
U.S. HIGHWAY 101
FairOver: FALLBROOK AVE
07-LA-101-26.45-LA, Los Angeles, CA
Built 1957 Load: 57.3 t ADT: 202,000
26TH ST
FairOver: ATLANTIC BOULEVARD
0.2MI E/O BANDINI BLVD, Los Angeles, CA
Built 2008 Load: 57.3 t ADT: 24,960
HOPE COURT
FairOver: PINYON CREEK
EAST OF BADGER LANE, Nevada, CA
Built 2004 Load: 57.3 t ADT: 1,000
INTERSTATE 10 EB
FairOver: DILLON ROAD
08-RIV-010-R58.89-COA, Riverside, CA
Built 1972 Load: 57.3 t ADT: 11,250
INTERSTATE 8 WB
FairOver: LA POSTA CR, LA POSTA RD
11-SD-008-R56.83L, San Diego, CA
Built 1974 Load: 57.3 t ADT: 8,350
DRAIS RD
FairOver: NORTH BRANCH CHANNEL A
0.4 MI S COPPEROPOLIS RD, San Joaquin, CA
Built 1976 Load: 57.3 t ADT: 314
PESCADERO RD
FairOver: PESCADERO CREEK
3 MI E BUTANO CUTT-OFF, San Mateo, CA
Built 1937 Load: 57.3 t ADT: 620
BEACH PARK BLVD
FairOver: FOSTER CITY LAGOON
0.1 MI E EDGEWATER BLVD, San Mateo, CA
Built 1975 Load: 57.3 t ADT: 9,750
STATE ROUTE 299
FairOver: FALL RIVER
02-SHA-299-91.39, Shasta, CA
Built 1933 Load: 57.3 t ADT: 3,250
ISLAND ROAD
FairOver: SCOTT RIVER OVERFLOW
0.2 MI W OF EASTSIDE RD, Siskiyou, CA
Built 1977 Load: 57.3 t ADT: 161
INTERSTATE 580
FairOver: 14TH AVENUE
04-ALA-580-R42.07-OAK, Alameda, CA
Built 1963 Load: 57.7 t ADT: 182,000
SKYWAY AVENUE
FairOver: LTL CHICO-BUTTE CR DV CH
0.4 MI NW HUMBUG ROAD, Butte, CA
Built 1978 Load: 57.7 t ADT: 11,000
N FRIANT ROAD SB
FairOver: LITTLE DRY CREEK
1.0 MI NORTH OF WILLOW AV, Fresno, CA
Built 1973 Load: 57.7 t ADT: 9,200
MARQUARDT AVE
FairOver: COYOTE CR
0.2MI S/O 183RD ST, Los Angeles, CA
Built 1965 Load: 57.7 t ADT: 15,963
CANYON RD
FairOver: BERRY CREEK
0.2 MI E JCT WITH E RD, Mendocino, CA
Built 1966 Load: 57.7 t ADT: 501
W380-N101 CONNECTR
FairOver: NORTH CHANNEL
04-SM-380-6.48-SBR, San Mateo, CA
Built 1976 Load: 57.7 t ADT: 1,700
STATE ROUTE 99 SB
FairOver: UP RR
10-STA-099-R6.41-TUR, Stanislaus, CA
Built 1973 Load: 57.7 t ADT: 36,500
LAS POSAS RD
FairOver: CAMARILLO HILLS DRAIN
0.2 MI S OF US 101, Ventura, CA
Built 1975 Load: 57.7 t ADT: 27,000
INTERSTATE 80
FairOver: REFINERY ACCESS RD
04-CC-080-11.69, Contra Costa, CA
Built 1958 Load: 58.0 t ADT: 115,000
N5-N110 CONNECTOR
FairOver: AVENUE 26
07-LA-005-20.32-LA, Los Angeles, CA
Built 1962 Load: 58.0 t ADT: 16,830
SAN FERNANDO RD
FairOver: PACOIMA WASH
0.5 MI NW PAXTON ST, Los Angeles, CA
Built 1925 Load: 58.0 t ADT: 15,000
SNELLING ROAD
FairOver: MAIN CANAL
2.8 MI S/O SR 59, Merced, CA
Built 1981 Load: 58.0 t ADT: 1,451
E AMERICAN AVE
FairOver: ALTA EAST BRANCH CANAL
0.1 MI E OF CRAWFORD AVE, Fresno, CA
Built 1980 Load: 58.3 t ADT: 1,100
STATE ROUTE 165
FairOver: CALIFORNIA AQUEDUCT
10-MER-165-1.08, Merced, CA
Built 1966 Load: 58.3 t ADT: 1,800
BLOSSOM ROAD
FairOver: BEAVER SLOUGH
1 MI N OF PELTIER, San Joaquin, CA
Built 1980 Load: 58.3 t ADT: 251
ISLAND ROAD
FairOver: SCOTT RIVER OVERFLOW
0.1 MI W OF ISLAND RD, Siskiyou, CA
Built 1977 Load: 58.3 t ADT: 86
TABLE MOUNTAIN BLV
FairOver: THERMALITO POWER CANAL
0.8 MI NW NELSON AVE, Butte, CA
Built 1965 Load: 58.6 t ADT: 3,312
DIAMOND MTN RD
FairOver: LIGHTS CREEK
4.9 MI NE GRNVLE-BECK RD, Plumas, CA
Built 1956 Load: 58.6 t ADT: 70
ESTRELLA ROAD
FairOver: ESTRELLA RIVER
AT ESTRELLA RD, San Luis Obispo, CA
Built 1978 Load: 58.6 t ADT: 249
N FAIRFAX AVE
FairOver: CCID MAIN CANAL
0.7 MI S OF S.R. 33, Fresno, CA
Built 1976 Load: 59.0 t ADT: 200
SYLAR LANE
FairOver: COLE CREEK
0.2 MI E/O STATE STREET, Lake, CA
Built 1965 Load: 59.0 t ADT: 250
CAVITT STALLMAN RD
FairOver: MINERS RAVINE
0.4 MI N OLIVE RANCH RD, Placer, CA
Built 1979 Load: 59.0 t ADT: 4,239
STATE ROUTE 111 NB
FairOver: BLAISDELL CANYON
08-RIV-111-58.08, Riverside, CA
Built 1948 Load: 59.0 t ADT: 9,500
Showing 16,751-16,800 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.