Total Bridges
27,040
Public highway bridges in California
State profile · Below median Poor share
California bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in California, based on the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
Data updated May 2026
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges whose lowest applicable component is rated 0-4
-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 - Poor-condition share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below California on the same metric.
OH
Ohio
4.54% top marginal rate
NJ
New Jersey
4.59% top marginal rate
CA
California
4.60% top marginal rate
AR
Arkansas
4.71% top marginal rate
WA
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: 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 5 NB
PoorOver: INGRAM CREEK ROAD
10-STA-005-22.99, Stanislaus, CA
Built 1967 Load: 23.0 t ADT: 20,500
1ST STREET
PoorOver: ARROYO SIMI
.1 MI S/O LOS ANGELES AV, Ventura, CA
Built 1971 Load: 23.0 t ADT: 22,500
CR A21 / MOONEY RD
PoorOver: ROBBERS CREEK
0.5 MI SW OF SR 36, Lassen, CA
Built 1975 Load: 23.3 t ADT: 1,500
DEER PARK ROAD
PoorOver: NAPA RIVER
0.5 MI NE SR 29, Napa, CA
Built 1966 Load: 23.3 t ADT: 3,115
ACTUALLY RD 28N03
PoorOver: INDIAN CREEK
NO DATA ENTERED, Plumas, CA
Built 1965 Load: 23.3 t ADT: 50
ROAD 28N03
PoorOver: INDIAN CREEK
INDIAN CREEK, Plumas, CA
Built 1965 Load: 23.3 t ADT: 50
YANONALI STREET
PoorOver: LAGUNA DRAINAGE CHANNEL
0.1 MI EAST OF GARDEN ST, Santa Barbara, CA
Built 1994 Load: 23.3 t ADT: 8,100
INTERSTATE 80
PoorOver: GREEN VALLEY CREEK
04-SOL-080-12.91-FRFD, Solano, CA
Built 1928 Load: 23.3 t ADT: 189,000
INTERSTATE 5 SB
PoorOver: OAK FLAT ROAD
10-STA-005-12.53, Stanislaus, CA
Built 1967 Load: 23.3 t ADT: 18,000
ROAD 16
PoorOver: HOMELAND CANAL
1.0 MI N OF AVENUE 56, Tulare, CA
Built 1942 Load: 23.3 t ADT: 175
PENTZ ROAD
PoorOver: BERRY CANYON
3.1 MI EAST OF SR 99, Butte, CA
Built 1970 Load: 23.7 t ADT: 7,146
W580-CENTRAL OFF
PoorOver: CENTRAL AVE
04-CC-580-0.04-RCH, Contra Costa, CA
Built 1991 Load: 23.7 t ADT: 4,300
DIABLO ROAD
PoorOver: SAN RAMON CREEK
0.2 MI WEST OF I-680, Contra Costa, CA
Built 1966 Load: 23.7 t ADT: 21,350
ALBEE CK CAMP
PoorOver: ALBEE CREEK
HUMBOLDT REDWOOD ST. PK., Humboldt, CA
Built 1986 Load: 23.7 t ADT: 10
STATE ROUTE 99 SB
PoorOver: BEAR CREEK
10-MER-099-16.38-MER, Merced, CA
Built 1962 Load: 23.7 t ADT: 25,500
32017
PoorOver: BUCKEYE CREEK
NO DATA ENTERED, Mono, CA
Built 1960 Load: 23.7 t ADT: 50
VINEYARD CANYON RD
PoorOver: CHOLAME CREEK
0.1 MI W SLACKS CANYON RD, Monterey, CA
Built 1950 Load: 23.7 t ADT: 210
SILVERADO CANYN RD
PoorOver: SILVERADO CANYON CREEK
4.9 MI. E/O SANTIAGO ROAD, Orange, CA
Built 1947 Load: 23.7 t ADT: 2,000
INTERSTATE 10 EB
PoorOver: COACHELLA CANAL
08-RIV-010-R60.40-COA, Riverside, CA
Built 1947 Load: 23.7 t ADT: 11,250
JOHNSON ROAD
PoorOver: CALIFORNIA AQUEDUCT
1.2 MI S OF PALMDALE RD, San Bernardino, CA
Built 1971 Load: 23.7 t ADT: 1,835
TWO BAR RD
PoorOver: TWO BAR CREEK
2.7 MI E OF SR 9, Santa Cruz, CA
Built 1959 Load: 23.7 t ADT: 200
STATE ROUTE 49
PoorOver: SALMON CREEK
03-SIE-049-R32.90, Sierra, CA
Built 1964 Load: 23.7 t ADT: 800
SR 1
PoorOver: BIG SYCAMORE CREEK
07-VEN-001-4.54, Ventura, CA
Built 1938 Load: 23.7 t ADT: 11,600
CRYSTAL SPRGS CAMP
PoorOver: WEST FORK CARSON RIVER
0.1 MILE SOUTH OF S.H. 88, Alpine, CA
Built 1938 Load: 24.0 t ADT: 275
OAK DR
PoorOver: OLD TOPANGA CRK
0.1MI N/O OLD TOPANGA RD, Los Angeles, CA
Built 1928 Load: 24.0 t ADT: 870
STATE ROUTE 140
PoorOver: MILES CREEK
10-MPA-140-3.64, Mariposa, CA
Built 1928 Load: 24.0 t ADT: 4,650
SWANTON RD
PoorOver: BIG CREEK
3 MI NW OF SR 1, Santa Cruz, CA
Built 1950 Load: 24.0 t ADT: 500
INTERSTATE 5 SB
PoorOver: NIELS HANSON RD
10-STA-005-14.94, Stanislaus, CA
Built 1967 Load: 24.0 t ADT: 18,000
HEGENBERGER RD
PoorOver: SAN LEANDRO CREEK
SOUTH LEET DR, Alameda, CA
Built 1968 Load: 24.3 t ADT: 46,294
HEGENBERGER RD
PoorOver: ELMHURST CREEK
0.3 MI N COLISEUM WAY, Alameda, CA
Built 1966 Load: 24.3 t ADT: 46,294
CHANNEL DRIVE
PoorOver: LAKE
0.1 MI N LAKE BLVD, Alameda, CA
Built 1966 Load: 24.3 t ADT: 390
CUSHING PARKWAY
PoorOver: LAGUNA CR(FLD CNTRL L E)
0.14 MI W OF FREMONT BLVD, Alameda, CA
Built 1956 Load: 24.3 t ADT: 24,500
E 5TH AVE (CHICO)
PoorOver: LINDO CHANNEL
AT E. LINDO AVENUE, Butte, CA
Built 1970 Load: 24.3 t ADT: 7,848
OLD 99W
PoorOver: STONE CORRAL CREEK
0.6 MI N MXWL-SITES RD, Colusa, CA
Built 1927 Load: 24.3 t ADT: 1,976
FOUR MILE RD
PoorOver: LOGAN CREEK
0.7 MI N OF DELEVAN RD, Colusa, CA
Built 1965 Load: 24.3 t ADT: 31
ST FRANCIS DR
PoorOver: GALINDO CREEK
0.1 MI E OAK GROVE RD, Contra Costa, CA
Built 1950 Load: 24.3 t ADT: 450
SECOND AVE SOUTH
PoorOver: GRAYSON CREEK
JUST W CONTRA COSTA BLVD, Contra Costa, CA
Built 1954 Load: 24.3 t ADT: 3,419
CAMINO SOBRANTE
PoorOver: SAN PABLO CREEK
75 FT E CAMINO PABLO, Contra Costa, CA
Built 1955 Load: 24.3 t ADT: 2,514
JERSEY ISLAND RD
PoorOver: DUTCH SLOUGH
1.5 MILES N OF CYPRESS RD, Contra Costa, CA
Built 1949 Load: 24.3 t ADT: 188
NORTH LAKE DRIVE
PoorOver: LAKE ALHAMBRA
AT EAST 13TH ST, Contra Costa, CA
Built 1961 Load: 24.3 t ADT: 1,500
CHAPMAN STREET
PoorOver: HOPPOW CREEK
WEST OF ROUTE 101/169 SEP, Del Norte, CA
Built 1965 Load: 24.3 t ADT: 20
E SHIELDS AVE
PoorOver: DRY CREEK CANAL
0.1 MI WEST OF MILLBROOK, Fresno, CA
Built 1962 Load: 24.3 t ADT: 27,039
COUNTY ROAD Z
PoorOver: ANGEL SLOUGH
0.8 MI N OF CO RD #67, Glenn, CA
Built 1950 Load: 24.3 t ADT: 176
SIERRA HWY
PoorOver: UNNAMED WASH
2.0MI S/O KERN CO LINE, Los Angeles, CA
Built 1921 Load: 24.3 t ADT: 3,838
WILMINGTON AV 223
PoorOver: DOMINGUEZ CHAN
0.8MI S/O CARSON ST, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 33,600
SANTA FE BLVD
PoorOver: BERENDA SLOUGH
0.2 MI N/W OF AVE 27, Madera, CA
Built 1968 Load: 24.3 t ADT: 259
6TH STREET
PoorOver: MARIPOSA CREEK
AT STROMING ROAD, Mariposa, CA
Built 1950 Load: 24.3 t ADT: 1,080
LAMBERT LANE
PoorOver: ROBINSON CREEK
0.1 MI W OF SR 128, Mendocino, CA
Built 1954 Load: 24.3 t ADT: 379
STATE ROUTE 165
PoorOver: CCID MAIN CANAL
10-MER-165-7.17, Merced, CA
Built 1923 Load: 24.3 t ADT: 1,800
16TH STREET
PoorOver: BEAR CREEK OVERFLOW
0.2 MI SE OF G STREET, Merced, CA
Built 1938 Load: 24.3 t ADT: 2,500
Showing 26,301-26,350 of 27,040 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.