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
GoodOver: PILOT WASH
11-IMP-008-R90.03, Imperial, CA
Built 1970 Load: 32.4 t ADT: 15,100
STATE ROUTE 98
GoodOver: GREESON WASH
11-IMP-098-25.56, Imperial, CA
Built 1990 Load: 32.4 t ADT: 1,950
STATE ROUTE 86 SB
GoodOver: SURPRISE DITCH
11-IMP-086-53.99, Imperial, CA
Built 1989 Load: 32.4 t ADT: 7,550
STATE ROUTE 111
GoodOver: KUEHN DRAW WASH
11-IMP-111-42.24, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,650
STATE ROUTE 111
GoodOver: BRAWLEY WASH
11-IMP-111-43.01, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: PHIL WASH
11-IMP-111-43.28, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: SALT WASH
11-IMP-111-45.63, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: SKEE WASH
11-IMP-111-45.87, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: POLO WASH
11-IMP-111-46.64, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: LEVEL WASH
11-IMP-111-48.12, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: ZIGZAG WASH
11-IMP-111-48.64, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: ED WASH
11-IMP-111-49.03, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: BEE WASH
11-IMP-111-49.38, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: CLAM WASH
11-IMP-111-49.67, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: SHLITZ WASH
11-IMP-111-50.10, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: RAY WASH
11-IMP-111-50.46, Imperial, CA
Built 1950 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: NEW RIVER
11-IMP-111-26.95, Imperial, CA
Built 1985 Load: 32.4 t ADT: 6,600
INTERSTATE 8 WB
GoodOver: ALL AMER CANAL,SAND HLLS
11-IMP-008-81.69, Imperial, CA
Built 1938 Load: 32.4 t ADT: 7,250
INTERSTATE 8 WB
GoodOver: ALL AMER CANAL,GORDNS WL
11-IMP-008-R73.92, Imperial, CA
Built 1939 Load: 32.4 t ADT: 7,900
INTERSTATE 8
GoodOver: ALAMO RIVER
11-IMP-008-R49.75, Imperial, CA
Built 1971 Load: 32.4 t ADT: 11,400
INTERSTATE 8 EB
GoodOver: MYER CREEK
11-IMP-008-R4.76R, Imperial, CA
Built 1941 Load: 32.4 t ADT: 7,105
INTERSTATE 8 EB
GoodOver: MYER CREEK
11-IMP-008-R4.89R, Imperial, CA
Built 1941 Load: 32.4 t ADT: 7,105
INTERSTATE 8 EB
GoodOver: MYER CREEK
11-IMP-008-R5.31R, Imperial, CA
Built 1941 Load: 32.4 t ADT: 7,105
INTERSTATE 8
GoodOver: ARAZ WASH
11-IMP-008-R91.48, Imperial, CA
Built 1973 Load: 32.4 t ADT: 20,400
STATE ROUTE 78
GoodOver: EAST HIGHLINE CANAL
11-IMP-078-27.28, Imperial, CA
Built 1963 Load: 32.4 t ADT: 1,800
STATE ROUTE 86
GoodOver: NEW RIVER
11-IMP-086-21.57, Imperial, CA
Built 2001 Load: 32.4 t ADT: 13,700
STATE ROUTE 111 SB
GoodOver: ROCKWOOD CANAL
11-IMP-111-R20.58, Imperial, CA
Built 2003 Load: 32.4 t ADT: 17,580
STATE ROUTE 111 NB
GoodOver: ROCKWOOD CANAL
11-IMP-111-R20.58, Imperial, CA
Built 2003 Load: 32.4 t ADT: 17,580
STATE ROUTE 78 WB
GoodOver: NEW RIVER
11-IMP-078-R12.48, Imperial, CA
Built 2012 Load: 32.4 t ADT: 6,100
STATE ROUTE 78 EB
GoodOver: NEW RIVER
11-IMP-078-R12.48, Imperial, CA
Built 2012 Load: 32.4 t ADT: 6,100
STATE ROUTE 78 EB
GoodOver: BRAWLEY OH
11-IMP-078-R13.10, Imperial, CA
Built 2011 Load: 32.4 t ADT: 6,800
STATE ROUTE 78
GoodOver: COACHELLA CANAL (SIPHON)
11-IMP-078-34.16, Imperial, CA
Built 1983 Load: 32.4 t ADT: 1,800
STATE ROUTE 98
GoodOver: EAST HIGHLINE CANAL
11-IMP-098-45.51, Imperial, CA
Built 2006 Load: 32.4 t ADT: 2,850
INTERSTATE 8
GoodOver: EAST COYOTE WASH
11-IMP-008-R20.74, Imperial, CA
Built 1968 Load: 32.4 t ADT: 12,200
STATE ROUTE 111
GoodOver: "Z" DRAIN
11-IMP-111-44.70, Imperial, CA
Built 2012 Load: 32.4 t ADT: 3,600
STATE ROUTE 111
GoodOver: NILAND CREEK
11-IMP-111-45.37, Imperial, CA
Built 2021 Load: 32.4 t ADT: 3,436
SCARONI ROAD
GoodOver: ALL AMERICAN CANAL
0.5 MI N/O SR 98, Imperial, CA
Built 1965 Load: 32.4 t ADT: 1,000
IMPERIAL AVE E
GoodOver: ALL AMERICAN CANAL
0.5 MI N/O OF SR-98, Imperial, CA
Built 1965 Load: 32.4 t ADT: 1,000
EDDINS RD
GoodOver: ALAMO RIVER
3.3 MI W/O SR 111, Imperial, CA
Built 1990 Load: 32.4 t ADT: 1,200
ATEN ROAD
GoodOver: CENTRAL MAIN CANAL
50 FT E/O AUSTIN RD, Imperial, CA
Built 1987 Load: 32.4 t ADT: 1,308
ROSS RD
GoodOver: CENTRAL MAIN CANAL
50 FT E/O AUSTIN RD, Imperial, CA
Built 1990 Load: 32.4 t ADT: 467
W. MAIN ST
GoodOver: CENTRAL MAIN CANAL
50 FT E/O AUSTIN RD, Imperial, CA
Built 1993 Load: 32.4 t ADT: 1,604
BRANDT RD
GoodOver: NEW RIVER
5.7 MI N/O SR 78 EXPWY, Imperial, CA
Built 2002 Load: 32.4 t ADT: 900
US HIGHWAY 395 NB
GoodOver: LOS ANGELES AQUEDUCT
09-INY-395-65.71, Inyo, CA
Built 2010 Load: 32.4 t ADT: 3,200
US HIGHWAY 395 NB
GoodOver: LOS ANGELES AQUEDUCT
09-INY-395-R21.31, Inyo, CA
Built 1984 Load: 32.4 t ADT: 6,400
US HIGHWAY 395
GoodOver: BIG PINE CREEK
09-INY-395-100.20, Inyo, CA
Built 1993 Load: 32.4 t ADT: 13,500
U.S. HIGHWAY 395
GoodOver: LOWER ROCK CREEK
09-INY-395-R127.73-BIS, Inyo, CA
Built 1975 Load: 32.4 t ADT: 15,000
US HIGHWAY 395 NB
GoodOver: LOS ANGELES AQUEDUCT
09-INY-395-R22.08, Inyo, CA
Built 1984 Load: 32.4 t ADT: 6,400
U.S. HIGHWAY 395
GoodOver: BISHOP CRK OVERFLOW CHNL
09-INY-395-119.60-BIS, Inyo, CA
Built 1985 Load: 32.4 t ADT: 21,550
STATE ROUTE 168
GoodOver: BISHOP CREEK OVERFLOW
09-INY-168-14.90-BIS, Inyo, CA
Built 1985 Load: 32.4 t ADT: 8,000
Showing 20,501-20,550 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.