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
LYON AVENUE
FairOver: HEMET CHANNEL
0.47 MI. S/O RTE. 74 HWY., Riverside, CA
Built 1971 Load: 22.7 t ADT: 9,400
STATE ROUTE 99
FairOver: STRAWBERRY CREEK
03-SAC-099-16.35-SAC, Sacramento, CA
Built 1924 Load: 22.7 t ADT: 131,000
JIBBOOM STREET
FairOver: UP RR YARD
NORTH FROM I ST VIADUCT, Sacramento, CA
Built 1936 Load: 22.7 t ADT: 8,594
MIRAMAR RD
FairOver: MTDB, BNSF RY, & AMTRAK
1.2 MI E OF I-805, San Diego, CA
Built 1975 Load: 22.7 t ADT: 60,580
SOUTH BAY BLVD
FairOver: LOS OSOS CREEK
2.15 MI SOUTH OF SR 1, San Luis Obispo, CA
Built 1966 Load: 22.7 t ADT: 15,232
US HIGHWAY 101 SB
FairOver: GAVIOTA CREEK
05-SB-101-47.23, Santa Barbara, CA
Built 1931 Load: 22.7 t ADT: 16,000
POST OFFICE SPUR
FairOver: GOODYEARS CREEK
0.2 MI N OF SR 49, Sierra, CA
Built 1954 Load: 22.7 t ADT: 50
SALMON RIVER ROAD
FairOver: SALMON RIVER
3.4 MI W/O SAWYERS BAR RD, Siskiyou, CA
Built 1966 Load: 22.7 t ADT: 72
FAY LANE
FairOver: SCOTT RIVER
0.5 MI E/O SR 3, Siskiyou, CA
Built 1975 Load: 22.7 t ADT: 136
GRIZZLY ISLAND RD
FairOver: MONTEZUMA SLOUGH
5.5 MI S SR 12, Solano, CA
Built 1958 Load: 22.7 t ADT: 606
LEISURE TOWN RD
FairOver: HORSE CREEK
0.3 MI S OF I-80, Solano, CA
Built 1968 Load: 22.7 t ADT: 14,270
SILVEYVILLE RD
FairOver: MC CUNE CREEK
0.40 MI E OSAGE RD, Solano, CA
Built 1959 Load: 22.7 t ADT: 407
US HIGHWAY 101 SB
FairOver: NWP RR/NCRRA
04-SON-101-33.22, Sonoma, CA
Built 1962 Load: 22.7 t ADT: 22,750
STEELE LANE
FairOver: PAULINE CREEK
STEELE LANE, Sonoma, CA
Built 1960 Load: 22.7 t ADT: 6,000
OLIVE AVENUE
FairOver: SALADO CREEK
0.4 MI EAST STATE RTE 33, Stanislaus, CA
Built 1921 Load: 22.7 t ADT: 672
CLINTON ROAD
FairOver: T.I.D. CERES MAIN CANAL
50' SOUTH HATCH RD, Stanislaus, CA
Built 1967 Load: 22.7 t ADT: 167
SACRAMENTO AVE
FairOver: CORNING CANAL
3/4 MI NE RAWSON RD, Tehama, CA
Built 1964 Load: 22.7 t ADT: 100
B-BAR-K ROAD
FairOver: BROWNS CREEK
2.9 MI NW OF SR 3, Trinity, CA
Built 1949 Load: 22.7 t ADT: 20
BIG CREEK ROAD
FairOver: BIG CREEK
4.5 MI NORTH OF S.R. 3, Trinity, CA
Built 1960 Load: 22.7 t ADT: 80
STATE ROUTE 198
FairOver: SALT CREEK
06-TUL-198-41.23, Tulare, CA
Built 1922 Load: 22.7 t ADT: 5,000
ROAD 56
FairOver: TRAVER CANAL
@ AVE 416, Tulare, CA
Built 1963 Load: 22.7 t ADT: 1,620
RD 208
FairOver: WHITE RIVER
0.3 MI S OF AVE 40, Tulare, CA
Built 1948 Load: 22.7 t ADT: 550
AVE 240
FairOver: INSIDE CREEK
0.6 MI W OF RD 168, Tulare, CA
Built 1951 Load: 22.7 t ADT: 300
LODGEPOLE CAMPGROU
FairOver: MARBLE FORK KAWEAH RIVER
21.5 MI. NORTH OF ASH MT., Tulare, CA
Built 1932 Load: 22.7 t ADT: 50
ITALIAN BAR RD
FairOver: FIVE MILE CREEK
5.2 MI NE BIG HILL RD, Tuolumne, CA
Built 1925 Load: 22.7 t ADT: 55
STATE ROUTE 32
FairOver: BIG CHICO CREEK
03-BUT-032-8.31-CHC, Butte, CA
Built 1921 Load: 23.0 t ADT: 17,400
TABLE MTN BLVD
FairOver: CAMPBELL CREEK OVERFLOW
1.5 MI NO OF TABLE MT OC, Butte, CA
Built 1940 Load: 23.0 t ADT: 456
MCDERMOTT ROAD
FairOver: DIRKS CREEK
1.5 MI N OF DELEVAN RD, Colusa, CA
Built 1960 Load: 23.0 t ADT: 31
DIAMOND BLVD
FairOver: WALNUT CREEK
0.1 MI N WILLOW PASS RD, Contra Costa, CA
Built 1966 Load: 23.0 t ADT: 33,000
PACIFIC AVE
FairOver: UP RR, BNSF RY, & AMTRAK
AT SAN PABLO AVE, Contra Costa, CA
Built 1958 Load: 23.0 t ADT: 1,518
E AMERICAN AVE
FairOver: FOWLER SWITCH CANAL
AT (JEO) HIGHLAND AVE, Fresno, CA
Built 1921 Load: 23.0 t ADT: 1,800
COUNTY RD P
FairOver: WILLOW CREEK
0.4 MI S OF S.H. 162, Glenn, CA
Built 1940 Load: 23.0 t ADT: 249
ALDERPOINT RD
FairOver: EEL RIVER & NWP RR
0.5 MI SE OF ALDERPOINT, Humboldt, CA
Built 1972 Load: 23.0 t ADT: 240
LYONS RD
FairOver: WESTSIDE MAIN CANAL
0.7 MI W/O DREW RD, Imperial, CA
Built 1940 Load: 23.0 t ADT: 100
STATE ROUTE 33
FairOver: SANDY CREEK
06-KER-033-19.51-TAF, Kern, CA
Built 1923 Load: 23.0 t ADT: 10,700
OILDALE DRIVE
FairOver: BEARDSLEY CANAL
0.04 MI S OF DECATUR DR, Kern, CA
Built 1981 Load: 23.0 t ADT: 5,300
SIR-FRANCIS DRAKE
FairOver: LAGUNITAS CREEK
5.9 MI E OF SH 1, Marin, CA
Built 1929 Load: 23.0 t ADT: 2,000
STATE ROUTE 271
FairOver: SOUTH FORK EEL RIVER
01-MEN-271-22.57, Mendocino, CA
Built 1917 Load: 23.0 t ADT: 95
STATE ROUTE 128
FairOver: INDIAN CREEK
01-MEN-128-23.34, Mendocino, CA
Built 1953 Load: 23.0 t ADT: 4,150
U.S. HIGHWAY 101
FairOver: RUSSIAN RIVER
01-MEN-101-9.24, Mendocino, CA
Built 1934 Load: 23.0 t ADT: 13,800
U.S. HIGHWAY 101
FairOver: SOUTH FORK EEL RIVER
01-MEN-101-R99.51, Mendocino, CA
Built 2009 Load: 23.0 t ADT: 6,100
KIBBY ROAD
FairOver: BEAR CREEK
0.4 MI S OF E. OLIVE AVE, Merced, CA
Built 1972 Load: 23.0 t ADT: 1,442
ARBOLEDA ROAD
FairOver: DUCK SLOUGH
0.1 MI S MCHENRY RD., Merced, CA
Built 2007 Load: 23.0 t ADT: 1,288
MODJESKA CANYON RD
FairOver: SANTIAGO CREEK
0.1 MI N/O MODJESKA GR RD, Orange, CA
Built 1935 Load: 23.0 t ADT: 1,000
LINCOLN BLVD
FairOver: AUBURN RAVINE
0.55 MI S OF SR 193, Placer, CA
Built 1926 Load: 23.0 t ADT: 29,000
STATE ROUTE 62 EB
FairOver: MISSION CHANNEL
08-RIV-062-R6.01, Riverside, CA
Built 1966 Load: 23.0 t ADT: 20,910
SCOTT ROAD
FairOver: CARSON CREEK
3.7 MI N LATROBE RD, Sacramento, CA
Built 1979 Load: 23.0 t ADT: 2,265
BEECH ST
FairOver: FALLBROOK CREEK WEST
300FT E/O MISSION RD, San Diego, CA
Built 1954 Load: 23.0 t ADT: 816
STATE ROUTE 99 SB
FairOver: CALAVERAS RIVER
10-SJ-099-21.79, San Joaquin, CA
Built 1930 Load: 23.0 t ADT: 35,500
RIO BLANCO ROAD
FairOver: TELEPHONE CUT
1.0 MI N. 8 MI RD, San Joaquin, CA
Built 1953 Load: 23.0 t ADT: 160
Showing 9,751-9,800 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.