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
MILLERTON ROAD
GoodOver: LITTLE DRY CREEK
1.8 MI E OF AUBERRY RD, Fresno, CA
Built 1925 Load: 27.5 t ADT: 600
STATE ROUTE 96
GoodOver: AIKENS CREEK
01-HUM-096-28.07, Humboldt, CA
Built 1960 Load: 27.5 t ADT: 560
INTERSTATE 10
GoodOver: UP RR
07-LA-010-29.81-EMTE, Los Angeles, CA
Built 1956 Load: 27.5 t ADT: 213,000
STATE ROUTE 14
GoodOver: LOS PINETOS ROAD
07-LA-014-R25.97-SCTA, Los Angeles, CA
Built 1971 Load: 27.5 t ADT: 159,000
CARMENITA RD
GoodOver: COYOTE CR
0.1MI S/O S ST, Los Angeles, CA
Built 1958 Load: 27.5 t ADT: 28,988
7TH ST
GoodOver: EMERALD WASH
0.1MI E/O B ST, Los Angeles, CA
Built 1964 Load: 27.5 t ADT: 51
STATE ROUTE 99 NB
GoodOver: FRANKLIN SLOUGH
10-MER-099-18.06, Merced, CA
Built 1947 Load: 27.5 t ADT: 28,000
INTERSTATE 5 SB
GoodOver: VOLTA ROAD
10-MER-005-13.87, Merced, CA
Built 1971 Load: 27.5 t ADT: 15,500
R STREET
GoodOver: BEAR CREEK
200 FT N OF W 25TH STREET, Merced, CA
Built 1959 Load: 27.5 t ADT: 19,260
CENTERVILLE RD
GoodOver: SOUTH BRANCH PIT RIVER
0.6 MI S OF SH 299, Modoc, CA
Built 1958 Load: 27.5 t ADT: 245
STATE ROUTE 1 SB
GoodOver: TRAFTON RD
05-MON-001-R101.50, Monterey, CA
Built 1967 Load: 27.5 t ADT: 15,250
STATE ROUTE 1 NB
GoodOver: TRAFTON RD
05-MON-001-R101.50, Monterey, CA
Built 1967 Load: 27.5 t ADT: 15,250
STATE ROUTE 1 SB
GoodOver: IRIS CANYON ROAD
05-MON-001-R76.47-MON, Monterey, CA
Built 1968 Load: 27.5 t ADT: 28,000
STATE ROUTE 1 NB
GoodOver: IRIS CANYON ROAD
05-MON-001-R76.47-MON, Monterey, CA
Built 1968 Load: 27.5 t ADT: 28,000
EAGLE LAKE ROAD
GoodOver: SOUTH YUBA RIVER
AT I-80, Nevada, CA
Built 1962 Load: 27.5 t ADT: 250
STATE ROUTE 62 EB
GoodOver: PAINTED HILLS CHANNEL
08-RIV-062-R1.09, Riverside, CA
Built 1966 Load: 27.5 t ADT: 8,517
STOCKTON BLVD
GoodOver: SOUTH BRANCH FLORIN CRK
50 FT S OF ORANGE AVE, Sacramento, CA
Built 1924 Load: 27.5 t ADT: 30,724
STOCKTON BLVD
GoodOver: FLORIN CREEK
50 FT N OF ORANGE AVE, Sacramento, CA
Built 1924 Load: 27.5 t ADT: 30,724
FLORIN PERKINS RD
GoodOver: MORRISON CREEK
0.5 MI N OF ELDER CREEK, Sacramento, CA
Built 1972 Load: 27.5 t ADT: 20,145
INTERSTATE 10 EB
GoodOver: CUCAMONGA WASH
08-SBD-010-6.70-ONT, San Bernardino, CA
Built 1953 Load: 27.5 t ADT: 126,000
INTERSTATE 8 WB
GoodOver: CARRIZO CREEK
11-SD-008-R72.27, San Diego, CA
Built 1967 Load: 27.5 t ADT: 8,150
STATE ROUTE 88
GoodOver: BEAR CREEK OVERFLOW
10-SJ-088-9.34, San Joaquin, CA
Built 1925 Load: 27.5 t ADT: 8,850
AIRPORT WAY
GoodOver: NORTH BRANCH WEBER CREEK
W/O DRAPER RD, San Joaquin, CA
Built 1968 Load: 27.5 t ADT: 9,868
EIGHT MILE ROAD
GoodOver: PIXLEY SLOUGH
E. OF LOWER SACTO RD., San Joaquin, CA
Built 1969 Load: 27.5 t ADT: 9,510
STATE ROUTE 1
GoodOver: CARBONERA CREEK
05-SCR-001-16.49-SCR, Santa Cruz, CA
Built 1958 Load: 27.5 t ADT: 88,000
STATE ROUTE 89
GoodOver: HAT CREEK
02-SHA-089-3.89, Shasta, CA
Built 1934 Load: 27.5 t ADT: 1,625
AGER-BESWICH RD
GoodOver: WILLOW CREEK
EAST OF AGER RD, Siskiyou, CA
Built 1968 Load: 27.5 t ADT: 313
STATE ROUTE 116
GoodOver: ADOBE CREEK
04-SON-116-36.19, Sonoma, CA
Built 1954 Load: 27.5 t ADT: 34,000
CANYON CREEK ROAD
GoodOver: CANYON CREEK
10.6 MI N OF JUNCTION CTY, Trinity, CA
Built 1967 Load: 27.5 t ADT: 170
ROAD 118
GoodOver: SAND CREEK
0.1 MI N OF AVE 400, Tulare, CA
Built 1939 Load: 27.5 t ADT: 50
WALNUT DR
GoodOver: TEHAMA-COLUSA CANAL
1.2 MI E OF S.R. 20, Colusa, CA
Built 1978 Load: 27.9 t ADT: 178
STATE ROUTE 162
GoodOver: ANGELS SLOUGH
03-GLE-162-80.72, Glenn, CA
Built 1975 Load: 27.9 t ADT: 2,400
U.S. HIGHWAY 101
GoodOver: ROHNER CREEK
01-HUM-101-60.67, Humboldt, CA
Built 1962 Load: 27.9 t ADT: 15,000
U.S. HIGHWAY 101
GoodOver: DIMMICK ROAD
01-HUM-101-R19.70, Humboldt, CA
Built 1964 Load: 27.9 t ADT: 5,900
STATE ROUTE 78
GoodOver: SAN FELIPE CREEK
11-IMP-078-2.07, Imperial, CA
Built 1950 Load: 27.9 t ADT: 1,200
STATE ROUTE 178 WB
GoodOver: BOREL CANAL
06-KER-178-R43.69, Kern, CA
Built 1974 Load: 27.9 t ADT: 2,100
STATE ROUTE 43
GoodOver: EAST BRANCH CROSS CREEK
06-KIN-043-7.92, Kings, CA
Built 1953 Load: 27.9 t ADT: 4,800
HERLONG ACCESS RD
GoodOver: LONG VALLEY CREEK
2.2 MI E US HWY 395, Lassen, CA
Built 1979 Load: 27.9 t ADT: 800
INTERSTATE 10
GoodOver: GATEWAY BLVD
07-LA-010-R4.89-LA, Los Angeles, CA
Built 1963 Load: 27.9 t ADT: 237,000
LA CRESCENTA AVE
GoodOver: PICKENS CYN CHAN
0.8MI S/O I-10 FWY, Los Angeles, CA
Built 1935 Load: 27.9 t ADT: 9,888
HARDING STREET
GoodOver: PACOIMA WASH
0.25 M NE ELDRIDGE AVE, Los Angeles, CA
Built 2001 Load: 27.9 t ADT: 937
ROAD 20
GoodOver: FRESNO RIVER
1.0 MI N AVE 15, Madera, CA
Built 1973 Load: 27.9 t ADT: 99
CENTERVILLE RD
GoodOver: MIDDLE BRANCH PIT RIVER
0.4 MI SOUTH OF SH 299, Modoc, CA
Built 1958 Load: 27.9 t ADT: 245
STATE ROUTE 221
GoodOver: BASALT ROAD
04-NAP-221-1.50-NAP, Napa, CA
Built 1944 Load: 27.9 t ADT: 24,500
EB ROUTE 60
GoodOver: UP RR & AMTRAK
08-RIV-060-30.24-BAU, Riverside, CA
Built 1959 Load: 27.9 t ADT: 44,500
INTERSTATE 10 WB
GoodOver: EAST CACTUS CITY ROAD
08-RIV-010-R74.83, Riverside, CA
Built 1965 Load: 27.9 t ADT: 11,250
STATE ROUTE 62 WB
GoodOver: PAINTED HILLS CHANNEL
08-RIV-062-R1.09, Riverside, CA
Built 1966 Load: 27.9 t ADT: 9,000
INTERSTATE 10 EB
GoodOver: EAGLE MOUNTAIN ROAD
08-RIV-010-R102.01, Riverside, CA
Built 1967 Load: 27.9 t ADT: 11,500
RAILROAD CANYON RD
GoodOver: COTTONWOOD CANYON CREEK
AT SKYLINK DR, Riverside, CA
Built 1975 Load: 27.9 t ADT: 25,000
RISING ROAD
GoodOver: FOLSOM SOUTH CANAL
1 MI E/O ALTA MESA RD, Sacramento, CA
Built 1971 Load: 27.9 t ADT: 50
Showing 19,251-19,300 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.