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
MERRILL-MILL ST
PoorOver: UP RR
2.4 MI W RTE I-215, San Bernardino, CA
Built 1967 Load: 41.1 t ADT: 11,141
RIALTO AVE
PoorOver: TWIN WARM CREEK
0.25 MI E WATERMAN AVE, San Bernardino, CA
Built 1960 Load: 41.1 t ADT: 5,300
KERSHAW RD
PoorOver: ALAMO RIVER
1.6 MI N/O RUTHERFORD RD, Imperial, CA
Built 1970 Load: 41.5 t ADT: 800
SAN GABRIEL RIV PK
PoorOver: SAN GABRIEL RIV PKWAY
0.6MI N/O BEVERLY BLVD, Los Angeles, CA
Built 1954 Load: 41.5 t ADT: 11,088
124TH ST
PoorOver: ACTA
50FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 41.5 t ADT: 2,336
STATE HIGHWAY 138
PoorOver: WEST FORK MOJAVE RIVER
08-SBD-138-R26.48, San Bernardino, CA
Built 1968 Load: 41.5 t ADT: 1,550
RANDSBURG CUTOFF
PoorOver: LOS ANGELES AQUEDUCT
1.3 MI E OF SR 58, Kern, CA
Built 1966 Load: 41.8 t ADT: 2,260
GARFIELD AVE
PoorOver: UPRR
50FT S/O W MISSION RD, Los Angeles, CA
Built 1979 Load: 41.8 t ADT: 34,511
GLASSELL STREET
PoorOver: SANTIAGO CREEK CHANNEL
0.1 MI. N/O ROUTE 22 FWY, Orange, CA
Built 1939 Load: 41.8 t ADT: 31,600
INTERSTATE 5 NB
PoorOver: MOSHER SLOUGH
10-SJ-005-33.49, San Joaquin, CA
Built 1975 Load: 41.8 t ADT: 48,000
DON AVE
PoorOver: MOSHER SLOUGH
0.1 MI S WAUDMAN AVE, San Joaquin, CA
Built 1976 Load: 41.8 t ADT: 10,641
US HIGHWAY 101 NB
PoorOver: SAN JOSE CREEK
05-SB-101-21.62, Santa Barbara, CA
Built 1961 Load: 41.8 t ADT: 60,500
SB US HIGHWAY 101
PoorOver: UP, AMTRAK & PRIVATE RD
04-SCL-101-R0.77, Santa Clara, CA
Built 1970 Load: 41.8 t ADT: 26,000
R144
PoorOver: DEER CREEK
0.1 MI S OF A72, Tulare, CA
Built 1971 Load: 41.8 t ADT: 1,000
LA GONDA WAY
PoorOver: SAN RAMON CREEK
AT DANVILLE BLVD, Contra Costa, CA
Built 1950 Load: 42.1 t ADT: 2,800
INTERSTATE 710
PoorOver: LOS ANGELES RIVER
07-LA-710-17.34-SGT, Los Angeles, CA
Built 1955 Load: 42.1 t ADT: 220,000
25TH ST
PoorOver: ACTA
0.2MI E/O ALAMEDA ST, Los Angeles, CA
Built 2001 Load: 42.4 t ADT: 7,419
KNEELAND RD
PoorOver: NORTH FORK YAGER CREEK
14.3 MI N OF BRIDGEVILLE, Humboldt, CA
Built 1964 Load: 42.8 t ADT: 10
GOSFORD RD SB
PoorOver: ARVIN-EDISON CANAL
0.3 MI S TRUXTUN AVE, Kern, CA
Built 1984 Load: 42.8 t ADT: 17,700
ALAMEDA ST
PoorOver: COMPTON CRK
0.1MI S/O ARTESIA BLVD, Los Angeles, CA
Built 1937 Load: 42.8 t ADT: 10,710
BRADSHAW ROAD
PoorOver: MORRISON CREEK
0.3 MI S STATE RTE 16, Sacramento, CA
Built 2003 Load: 42.8 t ADT: 13,540
GREEN VALLEY RD
PoorOver: ATASCADERO CREEK
0.6 MI W OF SR 116, Sonoma, CA
Built 1967 Load: 42.8 t ADT: 2,500
GREENVILLE RD
PoorOver: ARROYO SECO
0.2 MI N TESLA RD, Alameda, CA
Built 1962 Load: 43.1 t ADT: 4,300
DOWNEY RD
PoorOver: LOS ANGELES RIV
0.8MI E/O SOTO ST, Los Angeles, CA
Built 1931 Load: 43.1 t ADT: 25,265
STATE ROUTE 24
PoorOver: BROWN AVENUE
04-CC-024-R6.84-LFYT, Contra Costa, CA
Built 1957 Load: 43.4 t ADT: 79,500
INTERSTATE 80 WB
PoorOver: EAST CISCO ROAD
03-PLA-080-R64.21L, Placer, CA
Built 1964 Load: 43.4 t ADT: 27,000
NB US HIGHWAY 101
PoorOver: COYOTE CREEK
04-SCL-101-29.83, Santa Clara, CA
Built 1947 Load: 43.4 t ADT: 64,000
INTERSTATE 5 NB
PoorOver: NIELS HANSON RD
10-STA-005-14.94, Stanislaus, CA
Built 1967 Load: 43.4 t ADT: 18,000
STATE ROUTE 152 WB
PoorOver: FRESNO RIVER
10-MER-152-R37.71, Merced, CA
Built 1969 Load: 43.7 t ADT: 8,425
SAN CARLOS ST
PoorOver: CALTRAIN,UPRR,BNSF,AMTRA
JUST W OF BIRD AVE, Santa Clara, CA
Built 1932 Load: 43.7 t ADT: 25,000
STATE ROUTE 49
PoorOver: COSUMNES RIVER
10-AMA-049-22.09, Amador, CA
Built 1952 Load: 44.1 t ADT: 2,175
FORRESTER RD (S30)
PoorOver: WESTSIDE MAIN CANAL
0.6 MI N/O KEYSTONE RD, Imperial, CA
Built 1950 Load: 44.1 t ADT: 11,714
RAILROAD AVENUE
PoorOver: WEST CHANNEL STUBBE WASH
0.3 MI. W/O VERBENIA AVE., Riverside, CA
Built 1983 Load: 44.1 t ADT: 240
WILLIAMS AVENUE
PoorOver: CALTRAIN & UP RR
0.2 MI WEST OF 3RD STREET, San Francisco, CA
Built 1936 Load: 44.1 t ADT: 10,200
NORTH ACCESS RD
PoorOver: SAN BRUNO CHANNEL (E)
0.3 MI E AIRPORT BLVD, San Mateo, CA
Built 1986 Load: 44.1 t ADT: 1,000
OAKPORT STREET
PoorOver: EAST CREEK SLOUGH
0.6 MI SE OF HIGH ST, Alameda, CA
Built 1948 Load: 44.4 t ADT: 3,347
ARROYO ROAD
PoorOver: DRY CREEK
1 MILE SW OF WETMORE, Alameda, CA
Built 1930 Load: 44.4 t ADT: 2,800
R 180
PoorOver: ST JOHNS RIVER
0.2 MI N OF A 312, Tulare, CA
Built 1953 Load: 44.4 t ADT: 420
NELSON AVE
PoorOver: PUENTE CRK
0.5MI S/O SUNSET AVE, Los Angeles, CA
Built 1955 Load: 44.7 t ADT: 9,308
STATE ROUTE 86 NB
PoorOver: COPHY DITCH
08-RIV-086-1.39, Riverside, CA
Built 1979 Load: 44.7 t ADT: 15,300
INTERSTATE 280 SB
PoorOver: SAN FRANCISQUITO CREEK
04-SM-280-R0.30, San Mateo, CA
Built 1969 Load: 44.7 t ADT: 46,500
STATE ROUTE 36
PoorOver: SHEEP GULCH
02-TEH-036-54.84, Tehama, CA
Built 1961 Load: 44.7 t ADT: 1,375
CHASE AVE
PoorOver: HALL CREEK
0.1 MI E BURNHAM AVE, Tehama, CA
Built 1953 Load: 44.7 t ADT: 100
ORR SPRINGS RD
PoorOver: SOUTH FORK BIG RIVER
19.8 MI W OF US 101, Mendocino, CA
Built 1955 Load: 45.4 t ADT: 134
WICKMAN RD
PoorOver: WATT LATERAL (IRRIG LAT)
1.25 MI S RICHVALE HWY, Butte, CA
Built 1940 Load: 45.7 t ADT: 10
VALLEY BLVD
PoorOver: EATON WASH
1.0MI E/O ROSEMEAD BLVD, Los Angeles, CA
Built 1956 Load: 45.7 t ADT: 26,536
INTERSTATE 80
PoorOver: CARPENTER ROAD
03-PLA-080-34.99, Placer, CA
Built 1958 Load: 45.7 t ADT: 29,000
SOUTH AVE
PoorOver: JEWETT CREEK
3.6 MI E/O ROAD 99W, Tehama, CA
Built 1968 Load: 45.7 t ADT: 5,576
US HIGHWAY 101 NB
PoorOver: VCY RY
07-VEN-101-R24.34-VEN, Ventura, CA
Built 1968 Load: 45.7 t ADT: 68,500
CAMINO DEL MAR
PoorOver: SAN ELIJO LAGOON
1.8MI N/O LOMAS SANTA FE, San Diego, CA
Built 1934 Load: 46.0 t ADT: 20,297
Showing 26,801-26,850 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |