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
FairOver: GREENHORN CREEK
02-SIS-005-R46.05-YRE, Siskiyou, CA
Built 1970 Load: 32.4 t ADT: 16,600
U.S. HIGHWAY 97
FairOver: SHEEP ROCK CATTLEPASS
02-SIS-097-R14.65, Siskiyou, CA
Built 1976 Load: 32.4 t ADT: 3,250
STATE ROUTE 3
FairOver: KIDDER CREEK
02-SIS-003-27.09, Siskiyou, CA
Built 1956 Load: 32.4 t ADT: 2,825
STATE ROUTE 3
FairOver: KIDDER CREEK
02-SIS-003-31.23, Siskiyou, CA
Built 1956 Load: 32.4 t ADT: 2,825
STATE ROUTE 161
FairOver: OREGON DRAIN
02-SIS-161-3.48, Siskiyou, CA
Built 1946 Load: 32.4 t ADT: 655
U.S. HIGHWAY 97
FairOver: CORP RR
02-SIS-097-0.15-WEED, Siskiyou, CA
Built 1982 Load: 32.4 t ADT: 18,000
U.S. HIGHWAY 97
FairOver: WHITNEY CREEK
02-SIS-097-9.61, Siskiyou, CA
Built 1982 Load: 32.4 t ADT: 5,000
STATE ROUTE 96
FairOver: KOHL CREEK
02-SIS-096-80.05, Siskiyou, CA
Built 1953 Load: 32.4 t ADT: 650
INTERSTATE 5
FairOver: YREKA CREEK
02-SIS-005-R45.61-YRE, Siskiyou, CA
Built 1970 Load: 32.4 t ADT: 16,600
STATE ROUTE 3
FairOver: ETNA CREEK
02-SIS-003-20.44, Siskiyou, CA
Built 1959 Load: 32.4 t ADT: 880
I-5 OFFRMP/KLAMATH
FairOver: WILLIAMS CREEK
02-SIS-005-R58.10L, Siskiyou, CA
Built 1969 Load: 32.4 t ADT: 60
HIGHWAY 96
FairOver: O'NEIL CREEK
02-SIS-096-65.38, Siskiyou, CA
Built 2008 Load: 32.4 t ADT: 600
STATE ROUTE 161
FairOver: LOST RIVER
02-SIS-161-19.18, Siskiyou, CA
Built 2008 Load: 32.4 t ADT: 655
GAZELLE-CALLAHAN R
FairOver: SOUTH FORK WILLOW CREEK
4.6 MI W OLD HY 99, Siskiyou, CA
Built 1973 Load: 32.4 t ADT: 306
HENLEY-HORNBROK RD
FairOver: COTTONWOOD CREEK
0.10 MI E HORNBROOK RD, Siskiyou, CA
Built 1989 Load: 32.4 t ADT: 377
ISLAND ROAD
FairOver: SCOTT RIVER OVERFLOW
0.75 MI W OF E ROAD, Siskiyou, CA
Built 1989 Load: 32.4 t ADT: 35
WALKER ROAD CONN
FairOver: KLAMATH RIVER
0.025 KM S SR 96, Siskiyou, CA
Built 1997 Load: 32.4 t ADT: 125
ISLAND RD
FairOver: SCOTT RIVER OVERFLOW
0.3 MI E SERPA LANE, Siskiyou, CA
Built 1986 Load: 32.4 t ADT: 170
AGER BESWICK ROAD
FairOver: BOGUS CREEK
7.6 MI EAST OF AGER ROAD, Siskiyou, CA
Built 2002 Load: 32.4 t ADT: 100
HORSE CREEK ROAD
FairOver: MIDDLE CREEK
2.5 MI N OF SR 96, Siskiyou, CA
Built 1971 Load: 32.4 t ADT: 21
SCOTT RIVER RD
FairOver: MCGUFFY CREEK
2.7 MI S MILL CRK RD, Siskiyou, CA
Built 1979 Load: 32.4 t ADT: 39
MOFFETT CREEK RD
FairOver: MOFFETT CREEK
2.6 MI EAST SR 3, Siskiyou, CA
Built 1989 Load: 32.4 t ADT: 145
OLD HWY 99
FairOver: WILLOW CREEK
1.0 MI S GAZELLE-CALLAHAN, Siskiyou, CA
Built 1994 Load: 32.4 t ADT: 1,005
DUZEL CREEK RD
FairOver: DUZEL CREEK
0.2 MI SW SCARFACE RD, Siskiyou, CA
Built 1974 Load: 32.4 t ADT: 15
KLAMATH RIVER ROAD
FairOver: VESA CREEK
7 MI NW HUMBUG CR RD, Siskiyou, CA
Built 1974 Load: 32.4 t ADT: 23
COPCO ROAD
FairOver: JENNY CREEK
COPCO ROAD, Siskiyou, CA
Built 2008 Load: 32.4 t ADT: 50
INTERSTATE 80 WB
FairOver: LEDGEWOOD CREEK
04-SOL-080-17.02-FRFD, Solano, CA
Built 1961 Load: 32.4 t ADT: 87,500
INTERSTATE 80 WB
FairOver: GIBSON CANYON CREEK
04-SOL-080-31.12-VAC, Solano, CA
Built 1965 Load: 32.4 t ADT: 60,750
STATE ROUTE 12
FairOver: MCCOY CREEK
04-SOL-012-6.28-SUIS, Solano, CA
Built 1988 Load: 32.4 t ADT: 36,000
INTERSTATE 505
FairOver: GIBSON CANYON CREEK
04-SOL-505-R2.70-VAC, Solano, CA
Built 1974 Load: 32.4 t ADT: 33,500
INTERSTATE 80 WB
FairOver: UP RR, BNSF RY, & AMTRAK
04-SOL-080-R43.93, Solano, CA
Built 1974 Load: 32.4 t ADT: 62,500
INTERSTATE 80 EB
FairOver: UP RR, BNSF RY, & AMTRAK
04-SOL-080-R43.93, Solano, CA
Built 1974 Load: 32.4 t ADT: 61,500
N29-E37 CONNECTOR
FairOver: CHABOT CREEK
04-SOL-029-4.78-VAL, Solano, CA
Built 2005 Load: 32.4 t ADT: 7,600
S29-W37 CONNECTOR
FairOver: CHABOT CREEK
04-SOL-029-4.70-VAL, Solano, CA
Built 2005 Load: 32.4 t ADT: 3,300
I-80 AND RAMPS
FairOver: RINDLER CREEK
04-SOL-080-5.50, Solano, CA
Built 1997 Load: 32.4 t ADT: 133,000
STATE ROUTE 12
FairOver: LEDGEWOOD CREEK
04-SOL-012-R3.41-FRFD, Solano, CA
Built 1957 Load: 32.4 t ADT: 39,250
STATE ROUTE 12
FairOver: ROUND HILL CREEK
04-SOL-012-19.07, Solano, CA
Built 2003 Load: 32.4 t ADT: 11,500
STATE ROUTE 113
FairOver: ROUND HILL CREEK
04-SOL-113-0.10, Solano, CA
Built 2003 Load: 32.4 t ADT: 4,500
STATE ROUTE 113
FairOver: ULATIS CREEK
04-SOL-113-11.67, Solano, CA
Built 2001 Load: 32.4 t ADT: 4,900
STATE ROUTE 29
FairOver: CHABOT CREEK
04-SOL-029-4.90-VAL, Solano, CA
Built 1960 Load: 32.4 t ADT: 25,150
EB 80 OFF-RAMP
FairOver: SUISUN CREEK
04-SOL-080-14.55, Solano, CA
Built 2013 Load: 32.4 t ADT: 3,770
LOPES ROAD
FairOver: AMERICAN CANYON CREEK
2.0 MI S OF I-80, Solano, CA
Built 1982 Load: 32.4 t ADT: 6,700
SUISUN VALLEY ROAD
FairOver: SUISUN CREEK
0.35 MI S MORRISON LANE, Solano, CA
Built 2005 Load: 32.4 t ADT: 1,052
CORDELIA RD
FairOver: GREEN VALLEY CREEK
0.5 MI EAST OF I-80, Solano, CA
Built 1988 Load: 32.4 t ADT: 2,540
CORDELIA ROAD
FairOver: LEDGEWOOD CREEK
0.3 MI SW JCT W/PENN AV, Solano, CA
Built 1989 Load: 32.4 t ADT: 3,540
FARREL RD
FairOver: ULATIS CREEK
JUST E ORCHARD AVE, Solano, CA
Built 1988 Load: 32.4 t ADT: 2,119
PLEASANTS VALLEY R
FairOver: PLEASANTS CREEK
1.9 MI S OF PUTAH CR RD, Solano, CA
Built 2004 Load: 32.4 t ADT: 817
GULF DR
FairOver: UNION AVE DIVERSION CHAN
BTWN ASH RD & SEQUOIA DR, Solano, CA
Built 1991 Load: 32.4 t ADT: 1,800
DOVER AVE
FairOver: UNION AVE DIVERSION CHAN
0.1 MI N CEMENT HILL RD, Solano, CA
Built 1988 Load: 32.4 t ADT: 8,678
AIR BASE PARKWAY
FairOver: LAUREL CREEK
DOVER AVE & CLAY BANK RD, Solano, CA
Built 1988 Load: 32.4 t ADT: 33,441
Showing 14,351-14,400 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.