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 880
GoodOver: HETCH HETCHY AQUEDUCT
04-ALA-880-7.32-FMT, Alameda, CA
Built 1958 Load: 22.0 t ADT: 187,000
STATE ROUTE 99
GoodOver: ROCK CREEK
03-BUT-099-40.65, Butte, CA
Built 1950 Load: 22.0 t ADT: 11,600
FOUTS SPRINGS RD
GoodOver: SALT CREEK
0.2 MI W LADOGA-STNYFD RD, Colusa, CA
Built 1970 Load: 22.0 t ADT: 237
THIRD ST
GoodOver: SAN PABLO CREEK
AT PARR BLVD, Contra Costa, CA
Built 1955 Load: 22.0 t ADT: 2,222
STATE ROUTE 86 NB
GoodOver: VALERIE WASH
11-IMP-086-60.57, Imperial, CA
Built 1953 Load: 22.0 t ADT: 7,300
STATE ROUTE 204
GoodOver: STINE CANAL
06-KER-204-5.49, Kern, CA
Built 1933 Load: 22.0 t ADT: 38,000
STATE ROUTE 204
GoodOver: CALLOWAY CANAL
06-KER-204-5.90, Kern, CA
Built 1933 Load: 22.0 t ADT: 38,000
SR 178
GoodOver: KERN RIVER
06-KER-178-R31.72, Kern, CA
Built 1974 Load: 22.0 t ADT: 3,900
OAKDALE RD
GoodOver: DRY CREEK
1.1 MI W OF SHAFFER, Merced, CA
Built 1966 Load: 22.0 t ADT: 977
KAHLON ROAD
GoodOver: DUCK SLOUGH
2.3 MI SE OF E MISSION RD, Merced, CA
Built 1914 Load: 22.0 t ADT: 384
ELKHORN RD
GoodOver: UP RR & AMTRAK
0.1 MI N GARIN RD, Monterey, CA
Built 1970 Load: 22.0 t ADT: 25,700
SILVERADO TRAIL
GoodOver: NAPA RIVER OVERFLOW
0.2 MI NORTH HARDMAN RD, Napa, CA
Built 1930 Load: 22.0 t ADT: 5,450
FDR 08
GoodOver: POLE CREEK
NO DATA ENTERED, Placer, CA
Built 1969 Load: 22.0 t ADT: 50
WB ROUTE 60
GoodOver: UP RR & AMTRAK
08-RIV-060-30.24, Riverside, CA
Built 1936 Load: 22.0 t ADT: 44,500
JOY STREET
GoodOver: TEMESCAL CREEK CHANNEL
0.2 MI. N/O HARRISON ST., Riverside, CA
Built 1975 Load: 22.0 t ADT: 8,000
STATE ROUTE 99 SB
GoodOver: NORTH CHANNEL DRY CREEK
03-SAC-099-0.13-GAL, Sacramento, CA
Built 1938 Load: 22.0 t ADT: 29,500
STOCKTON BLVD
GoodOver: MORRISON CREEK TRIBUTARY
0.1 MI S OF FOWLER AVE, Sacramento, CA
Built 1924 Load: 22.0 t ADT: 26,332
DEL PASO RD WB
GoodOver: EAST DRAINAGE CANAL
0.24MI E/O TRUXEL RD., Sacramento, CA
Built 1960 Load: 22.0 t ADT: 8,697
ELVERTA ROAD
GoodOver: NATOMAS EAST MAIN DRAIN
1.1 MI W RIO LINDA BLVD, Sacramento, CA
Built 1976 Load: 22.0 t ADT: 5,000
STEINER RD
GoodOver: MORRISON CREEK
SOUTH OF 53RD AVE, Sacramento, CA
Built 1961 Load: 22.0 t ADT: 5,450
OLD HWY 80
GoodOver: SDIV RR
2.6 MI W/O CARIZO GORGE, San Diego, CA
Built 1931 Load: 22.0 t ADT: 1,055
COTTA ROAD
GoodOver: UPLAND CANAL
1.0 MI W OF I-5, San Joaquin, CA
Built 1974 Load: 22.0 t ADT: 138
US HIGHWAY 101 NB
GoodOver: LOS BERROS CREEK
05-SLO-101-8.52, San Luis Obispo, CA
Built 1932 Load: 22.0 t ADT: 25,500
TASMAN DRIVE
GoodOver: BARBER LANE
0.2 KM WEST OF I-880, Santa Clara, CA
Built 1996 Load: 22.0 t ADT: 15,550
STATE ROUTE 299 WB
GoodOver: HAWLEY ROAD
02-SHA-299-25.54, Shasta, CA
Built 1974 Load: 22.0 t ADT: 10,100
D 152 (DRUM VLY)
GoodOver: MURRAY CREEK
.25 MI N OF SR245, Tulare, CA
Built 1938 Load: 22.0 t ADT: 95
ROAD 208
GoodOver: PORTER SLOUGH
0.47 MI S OF AVE 176, Tulare, CA
Built 1941 Load: 22.0 t ADT: 700
AVE 238
GoodOver: LEWIS CREEK
0.25 MI W OF RD 224, Tulare, CA
Built 1956 Load: 22.0 t ADT: 275
AVE 456
GoodOver: SAND CREEK
025. MI E OF RD 136, Tulare, CA
Built 1999 Load: 22.0 t ADT: 100
STATE ROUTE 150
GoodOver: LION CANYON CREEK
07-VEN-150-23.93, Ventura, CA
Built 1912 Load: 22.0 t ADT: 2,400
South Shore Drive
GoodOver: Clear Creek
JF Carr Powerplant, Shasta, CA
Built 1961 Load: 22.1 t ADT: 50
WALNUT AVE
GoodOver: CONTRA COSTA CANAL
0.01 MI E THE ALAMEDA, Contra Costa, CA
Built 1955 Load: 22.4 t ADT: 300
NORTH SOUTH ROAD
GoodOver: MIDDLE FORK CONSUMNES
NO DATA ENTERED, El Dorado, CA
Built 1998 Load: 22.4 t ADT: 50
N. MILLBROOK AVE
GoodOver: DRY CREEK CANAL
0.1 MI NORTH OF SHIELDS, Fresno, CA
Built 1952 Load: 22.4 t ADT: 10,269
COBB RANCH BLVD
GoodOver: SAN JOAQUIN RIVER
0.3 MI SOUTH OF AVE 9, Fresno, CA
Built 1941 Load: 22.4 t ADT: 800
HOPPE ROAD
GoodOver: RESERVATION MAIN DRAIN
0.3 MI E/O MCDANIEL RD, Imperial, CA
Built 1950 Load: 22.4 t ADT: 50
EVA DRIVE
GoodOver: BOREL CANAL
EAST OF BARLOW DRIVE, Kern, CA
Built 1973 Load: 22.4 t ADT: 65
KIMBERLINA ROAD
GoodOver: FRIANT-KERN CANAL
1.7 MI EAST OF SHAFTER AV, Kern, CA
Built 1951 Load: 22.4 t ADT: 2,000
CALIFORNIA AVE
GoodOver: KERN ISLAND CANAL
WEST OF 'R' ST, Kern, CA
Built 1912 Load: 22.4 t ADT: 19,675
PANAMA LANE
GoodOver: ARVIN-EDISON CANAL
0.1 MI E MALAGA RD, Kern, CA
Built 1965 Load: 22.4 t ADT: 930
SR 138 (PEARBLSSM)
GoodOver: LITTLE ROCK CREEK
07-LA-138-53.55, Los Angeles, CA
Built 1952 Load: 22.4 t ADT: 8,600
INTERSTATE 210
GoodOver: SUNFLOWER AVENUE
07-LA-210-R43.16-GDR, Los Angeles, CA
Built 1970 Load: 22.4 t ADT: 257,000
STATE ROUTE 39
GoodOver: N FORK SAN GABRIEL RIVER
07-LA-039-R31.25, Los Angeles, CA
Built 1967 Load: 22.4 t ADT: 830
STATE ROUTE 99 SB
GoodOver: UP RR
06-MAD-099-23.09, Madera, CA
Built 1957 Load: 22.4 t ADT: 18,750
WINDING ROAD
GoodOver: JACKASS CREEK
NO DATA ENTERED, Madera, CA
Built 1957 Load: 22.4 t ADT: 50
CAMINO ALTO
GoodOver: AYO CORTE MADERA DEL PRE
0.15 MI N MILLER AVE, Marin, CA
Built 1970 Load: 22.4 t ADT: 4,000
G STREET
GoodOver: BEAR CREEK
1.08 MI NE FROM ROUTE 99, Merced, CA
Built 1964 Load: 22.4 t ADT: 23,800
STAGE COACH CYN RD
GoodOver: BUTTS CREEK
3.4 MI E BUTTS CYN RD, Napa, CA
Built 1970 Load: 22.4 t ADT: 41
BREA CANYON BLVD.
GoodOver: BREA CANYON CHANNEL
0.8 MI N/O CENTRAL AVENUE, Orange, CA
Built 1939 Load: 22.4 t ADT: 20,709
MARINA HIGH ACC RD
GoodOver: WESTMINSTER CHANNEL
50' N/O EDINGER AVENUE, Orange, CA
Built 1963 Load: 22.4 t ADT: 4,900
Showing 17,951-18,000 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.