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
STATE ROUTE 1
FairOver: CORRAL CREEK
07-LA-001-49.89, Los Angeles, CA
Built 1926 Load: 29.5 t ADT: 32,700
E2-W134 CONNECTOR
FairOver: HARVEY DR & W134-OFFRAMP
07-LA-002-R18.83-GNDL, Los Angeles, CA
Built 1967 Load: 29.5 t ADT: 9,600
STATE ROUTE 14
FairOver: AMARGOSA CREEK
07-LA-014-R70.27-LAN, Los Angeles, CA
Built 1968 Load: 29.5 t ADT: 21,000
BARRANCA ST
FairOver: WALNUT CRK
100FT S/O I-10 FWY, Los Angeles, CA
Built 1975 Load: 29.5 t ADT: 15,526
STATE ROUTE 128
FairOver: BEEBE CREEK
01-MEN-128-38.80, Mendocino, CA
Built 1931 Load: 29.5 t ADT: 2,050
STATE ROUTE 165
FairOver: MERCED RIVER
10-MER-165-30.29, Merced, CA
Built 1920 Load: 29.5 t ADT: 7,750
VOLTA ROAD
FairOver: DELTA-MENDOTA CANAL
0.4 MI S PIONEER RD, Merced, CA
Built 1945 Load: 29.5 t ADT: 158
US HIGHWAY 101 SB
FairOver: LOCKWOOD-SAN LUCAS ROAD
05-MON-101-R29.90, Monterey, CA
Built 1971 Load: 29.5 t ADT: 7,450
US HIGHWAY 101 NB
FairOver: LOCKWOOD-SAN LUCAS ROAD
05-MON-101-R29.90, Monterey, CA
Built 1971 Load: 29.5 t ADT: 7,450
BRISTOL ST
FairOver: SANTIAGO CREEK CHANNEL
0.3 MI S/O MEMORY LANE, Orange, CA
Built 1947 Load: 29.5 t ADT: 55,000
INTERSTATE 10 EB
FairOver: POLARIS WASH
08-RIV-010-R62.03-COA, Riverside, CA
Built 1964 Load: 29.5 t ADT: 11,250
KIRBY STREET
FairOver: STETSON CHANNEL
25' N/O STETSON AVENUE, Riverside, CA
Built 1975 Load: 29.5 t ADT: 10,000
GILMAN SPRINGS RD.
FairOver: POTRERO CREEK
0.5 MI. SE/O SANDERSON AV, Riverside, CA
Built 1926 Load: 29.5 t ADT: 19,252
STATE ROUTE 62
FairOver: DRY MORONGO WASH
08-SBD-062-0.01, San Bernardino, CA
Built 1963 Load: 29.5 t ADT: 25,000
INTERSTATE 15 SB
FairOver: MICRO DITCH
08-SBD-015-169.38L, San Bernardino, CA
Built 1962 Load: 29.5 t ADT: 18,500
FORT IRWIN RD
FairOver: STORM DRAINAGE CHANNEL
0.1 MI. NE POWER LINE RD, San Bernardino, CA
Built 1986 Load: 29.5 t ADT: 6,760
FORT IRWIN RD
FairOver: STORM DRAINAGE
1 MI. NORTH BR004, San Bernardino, CA
Built 1986 Load: 29.5 t ADT: 6,760
FORT IRWIN RD
FairOver: STORM DRAINAGE
NEAR NASA ROAD, San Bernardino, CA
Built 1986 Load: 29.5 t ADT: 6,760
NORTH LOOP RD
FairOver: STORM DRAINAGE CHANNEL
N OF DESERT KING ROAD, San Bernardino, CA
Built 1986 Load: 29.5 t ADT: 1,250
INTERSTATE 8 WB
FairOver: MC CAIN VALLEY RD
11-SD-008-R67.82, San Diego, CA
Built 1967 Load: 29.5 t ADT: 8,150
WILDWOOD GLEN LN
FairOver: SWEETWATER RIVER
250 FT W/O SR 79, San Diego, CA
Built 1952 Load: 29.5 t ADT: 101
5N -132E CONNECTOR
FairOver: DELTA-MENDOTA CANAL
10-SJ-005-3.27, San Joaquin, CA
Built 1971 Load: 29.5 t ADT: 5,000
CALIFORNIA STREET
FairOver: MORMON SLOUGH
SOUTH HAZLETON AVE, San Joaquin, CA
Built 1958 Load: 29.5 t ADT: 4,700
STATE ROUTE 1
FairOver: VILLA CREEK
05-SLO-001-15.27-PBCH, San Luis Obispo, CA
Built 1947 Load: 29.5 t ADT: 9,500
SAN GABRIEL RD
FairOver: ATASCADERO CREEK
N OF W LINDO AVE, San Luis Obispo, CA
Built 1969 Load: 29.5 t ADT: 800
JESPERSEN RD
FairOver: E BR SAN LUIS OBISPO CRK
0.2 MI S BUCKEY RD, San Luis Obispo, CA
Built 1959 Load: 29.5 t ADT: 80
STATE PARK RD
FairOver: SAN SIMEON CREEK TRIB
100' E/O RTE 1 PM 52.82, San Luis Obispo, CA
Built 1950 Load: 29.5 t ADT: 30
SANTA TERESA BLVD
FairOver: UVAS CREEK
0.6 MI S HECKER PASS RD, Santa Clara, CA
Built 1972 Load: 29.5 t ADT: 5,110
TANTAU AVE
FairOver: CALABAZAS CREEK
NORTH OF I-280, Santa Clara, CA
Built 1966 Load: 29.5 t ADT: 7,700
PLATINA RD
FairOver: EAGLE CREEK
P.M. 22.9 E OF S.R. 36, Shasta, CA
Built 1924 Load: 29.5 t ADT: 610
INTERSTATE 5
FairOver: MOONLIT OAKS AVE
02-SIS-005-R45.62-YRE, Siskiyou, CA
Built 1970 Load: 29.5 t ADT: 8,300
INTERSTATE 5
FairOver: MOONLIT OAKS AVE
02-SIS-005-R45.62-YRE, Siskiyou, CA
Built 1970 Load: 29.5 t ADT: 8,300
INTERSTATE 5
FairOver: DEETZ ROAD
02-SIS-005-R15.32, Siskiyou, CA
Built 1973 Load: 29.5 t ADT: 12,300
MOSCOW RD
FairOver: HILLSIDE
1/2 MI NW MONTE RIO, Sonoma, CA
Built 1985 Load: 29.5 t ADT: 700
WHITMORE AVENUE
FairOver: T.I.D. MAIN CANAL
0.8 MI W HICKMAN RD, Stanislaus, CA
Built 1923 Load: 29.5 t ADT: 1,940
SANTA FE AVENUE
FairOver: T.I.D. MAIN CANAL
0.1 MI S/O MONTE VISTA AV, Stanislaus, CA
Built 1939 Load: 29.5 t ADT: 4,500
STATE ROUTE 32
FairOver: DEER CREEK
02-TEH-032-17.45, Tehama, CA
Built 1953 Load: 29.5 t ADT: 1,100
HESTER AVE
FairOver: DEEP CREEK
BTWN LARRY ST & COSTNR ST, Tulare, CA
Built 1963 Load: 29.5 t ADT: 1,572
AVENUE 368
FairOver: TRAVER CANAL
ROAD 40, Tulare, CA
Built 1958 Load: 29.5 t ADT: 100
STATE ROUTE 33
FairOver: N FORK MATILIJA CREEK
07-VEN-033-15.52, Ventura, CA
Built 1972 Load: 29.5 t ADT: 950
OLD RIVER ROAD
FairOver: SACRAMENTO BYPASS (WEIR)
0.8 MI OF I-80 BRIDGE, Yolo, CA
Built 1916 Load: 29.5 t ADT: 2,889
INTERSTATE 580 WB
FairOver: UP RR
04-ALA-580-R3.98R, Alameda, CA
Built 1969 Load: 29.8 t ADT: 83,000
MINES RD
FairOver: ARROYO MOCHO
3.2 MI SW TESLA RD, Alameda, CA
Built 1925 Load: 29.8 t ADT: 1,930
BANGOR PARK RD
FairOver: WILSON CREEK
1.8 MI W BANGOR HWY, Butte, CA
Built 1961 Load: 29.8 t ADT: 300
E MANNING AVE
FairOver: ALTA EAST BRANCH CANAL
0.2 MI E OF HILL AVE, Fresno, CA
Built 1951 Load: 29.8 t ADT: 3,600
TRIMMER SPRINGS RD
FairOver: C & K CANAL
0.1 MI N OF RIO VISTA AVE, Fresno, CA
Built 1930 Load: 29.8 t ADT: 400
N ECHO AVE
FairOver: DRY CREEK CANAL
SOUTH OF FRANKLIN AVE, Fresno, CA
Built 1928 Load: 29.8 t ADT: 469
NO DATA ENTERED
FairOver: NO DATA ENTERED
NO DATA ENTERED, Fresno, CA
Built 2000 Load: 29.8 t ADT: 50
STATE ROUTE 86 NB
FairOver: ARROYO SALADA DITCH
11-IMP-086-54.70, Imperial, CA
Built 1981 Load: 29.8 t ADT: 7,550
PEREZ RD
FairOver: RESERVATION MAIN DRAIN
0.3 MI N/O ROSS RD, Imperial, CA
Built 1987 Load: 29.8 t ADT: 500
Showing 11,651-11,700 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.