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
US HIGHWAY 199 NB
GoodOver: HILLSIDE ABOVE RIVER
01-DN-199-R18.26, Del Norte, CA
Built 1976 Load: 46.7 t ADT: 3,100
NO DATA ENTERED
GoodOver: LYONS CREEK
NO DATA ENTERED, El Dorado, CA
Built 2010 Load: 46.7 t ADT: 50
11N26
GoodOver: SOUTH FORK SILVER CREEK
NO DATA ENTERED, El Dorado, CA
Built 2011 Load: 46.7 t ADT: 50
11N10
GoodOver: SOUTH FORK AMERICAN
NO DATA ENTERED, El Dorado, CA
Built 2010 Load: 46.7 t ADT: 50
N MCCALL AVE
GoodOver: REDBANK SLOUGH
0.5 MI SOUTH OF DAKOTA AV, Fresno, CA
Built 1925 Load: 46.7 t ADT: 2,800
STATE ROUTE 162
GoodOver: QUINT CANAL
03-GLE-162-70.59, Glenn, CA
Built 1963 Load: 46.7 t ADT: 2,600
INTERSTATE 5
GoodOver: MAIN STREET
07-LA-005-19.20-LA, Los Angeles, CA
Built 1960 Load: 46.7 t ADT: 234,000
BIG DALTON AVE
GoodOver: WALNUT CRK
0.1MI N/O FRANCISQUITO AV, Los Angeles, CA
Built 1959 Load: 46.7 t ADT: 505
CHEVY CHASE
GoodOver: HAY CYN CHAN
0.5MI S/O FOOTHILL BLVD, Los Angeles, CA
Built 1937 Load: 46.7 t ADT: 4,080
AVENIDA RONDEL
GoodOver: PUC
0.1MI W/O AVENIDA ROTELLA, Los Angeles, CA
Built 1967 Load: 46.7 t ADT: 510
STATE ROUTE 1
GoodOver: WAGES CREEK
01-MEN-001-78.30, Mendocino, CA
Built 1977 Load: 46.7 t ADT: 830
FORD ST
GoodOver: ORRS CREEK
0.2 MI E OF N STATE ST., Mendocino, CA
Built 1977 Load: 46.7 t ADT: 1,751
Billy Wright Road
GoodOver: San Luis Canal
0.3 mi SW of SR 152, Merced, CA
Built 1968 Load: 46.7 t ADT: 200
STATE ROUTE 1 NB
GoodOver: ACCESS ROAD
05-MON-001-R87.65, Monterey, CA
Built 1976 Load: 46.7 t ADT: 23,500
ROAD 24N28
GoodOver: ROCK CREEK
ROCK CREEK, Plumas, CA
Built 1956 Load: 46.7 t ADT: 50
INTERSTATE 15 SB
GoodOver: LAWRENCE WELK DRIVE
11-SD-015-R39.35, San Diego, CA
Built 1980 Load: 46.7 t ADT: 60,000
JOHNSON AVE
GoodOver: SAN LUIS OBISPO CREEK
S/O DIXON LANDING RD, San Luis Obispo, CA
Built 1957 Load: 46.7 t ADT: 11,435
ALAMITOS ROAD
GoodOver: ALAMITOS CREEK
AT BERTRAM ROAD, Santa Clara, CA
Built 1966 Load: 46.7 t ADT: 360
INTERSTATE 5
GoodOver: MOTT ROAD
02-SIS-005-5.90, Siskiyou, CA
Built 1976 Load: 46.7 t ADT: 20,000
GLENN RD
GoodOver: HOUGHTON CREEK
BUTTE MTN RD, Tehama, CA
Built 1935 Load: 46.7 t ADT: 40
STATE ROUTE 70
GoodOver: UP RR & BNSF RY
03-BUT-070-26.81, Butte, CA
Built 1958 Load: 47.0 t ADT: 2,550
S CEDAR AVE
GoodOver: MURPHY SLOUGH
0.16 MI S COLEMAN AVE, Fresno, CA
Built 1988 Load: 47.0 t ADT: 500
INTERSTATE 5
GoodOver: WESTERN AVE
07-LA-005-27.84-GNDL, Los Angeles, CA
Built 1957 Load: 47.0 t ADT: 238,572
S405-E90 CONNECTOR
GoodOver: SLAUSON AVE
07-LA-405-26.09-CLC, Los Angeles, CA
Built 1968 Load: 47.0 t ADT: 6,200
PLATT AVE
GoodOver: BELL CREEK
0.1 M N/O VANOWEN ST, Los Angeles, CA
Built 1961 Load: 47.0 t ADT: 15,500
SERVICE AVE
GoodOver: WALNUT CRK
50FT S/O W COVINA PKWY, Los Angeles, CA
Built 1961 Load: 47.0 t ADT: 1,616
US HIGHWAY 101 NB
GoodOver: SALINAS RIVER
05-MON-101-R41.36R, Monterey, CA
Built 1956 Load: 47.0 t ADT: 15,900
ORMONDE RD
GoodOver: PISMO CREEK
0.1 MI E PRICE CANYON RD, San Luis Obispo, CA
Built 1978 Load: 47.0 t ADT: 590
UTAH AVE
GoodOver: COLMA CREEK
0.2 MI E OF S AIRPORT BLV, San Mateo, CA
Built 1975 Load: 47.0 t ADT: 12,150
SOUTH AVE
GoodOver: TEHAMA-COLUSA CANAL
3.2 MI E/O ROAD 99W, Tehama, CA
Built 1965 Load: 47.0 t ADT: 3,400
BROADWAY
GoodOver: CLARK SLOUGH
0.1 MI E OF FEATHER R BLV, Yuba, CA
Built 1980 Load: 47.0 t ADT: 390
INTERSTATE 405
GoodOver: BRADDOCK DR
07-LA-405-26.96-LA, Los Angeles, CA
Built 1960 Load: 47.1 t ADT: 278,000
INTERSTATE 405
GoodOver: ORA BUSWAY/HASKELL AVE
07-LA-405-41.27-LA, Los Angeles, CA
Built 1963 Load: 47.1 t ADT: 220,000
STATE ROUTE 60
GoodOver: UP RR
07-LA-060-12.18-IDY, Los Angeles, CA
Built 1967 Load: 47.1 t ADT: 263,000
BISHOP LANE
GoodOver: SAN RAMON CREEK
RUDGEAR ROAD, Contra Costa, CA
Built 1964 Load: 47.3 t ADT: 250
INTERSTATE 5 SB
GoodOver: TUJUNGA WASH CHANNEL
07-LA-005-36.35-LA, Los Angeles, CA
Built 1963 Load: 47.3 t ADT: 91,500
BRADDOCK DR
GoodOver: SEPULVEDA CHANNEL
0.3 MI SW FWY 405, Los Angeles, CA
Built 1952 Load: 47.3 t ADT: 8,067
UPPER BIG T CN RD
GoodOver: MILL CRK BR
150FT E/O ANGELES FOR HWY, Los Angeles, CA
Built 1982 Load: 47.3 t ADT: 178
COMMERCE CTR DR
GoodOver: CASTAIC CRK / HASLEY CH
0.2MI W/O HENRY MAYO DR, Los Angeles, CA
Built 1998 Load: 47.3 t ADT: 12,976
SR 121
GoodOver: SARCO CREEK
04-NAP-121-9.30, Napa, CA
Built 2018 Load: 47.3 t ADT: 12,000
MAIN ST
GoodOver: SANTIAGO CREEK CHANNEL
0.2 MI N/O ROUTE 5 FWY, Orange, CA
Built 1918 Load: 47.3 t ADT: 37,000
LINCOLN AVE. (WB)
GoodOver: COYOTE CREEK CHANNEL
200' W/O BLOOMFIELD ST., Orange, CA
Built 1955 Load: 47.3 t ADT: 13,000
STATE ROUTE 18
GoodOver: HILLSIDE
08-SBD-018-R16.64, San Bernardino, CA
Built 1970 Load: 47.3 t ADT: 16,000
INTERSTATE 580 EB
GoodOver: LONE TREE CREEK
10-SJ-580-1.70, San Joaquin, CA
Built 1967 Load: 47.3 t ADT: 11,000
INTERSTATE 580 WB
GoodOver: LONE TREE CREEK
10-SJ-580-1.69, San Joaquin, CA
Built 1967 Load: 47.3 t ADT: 11,000
FINE RD
GoodOver: CHANNEL B
0.2 MI S FLOOD RD, San Joaquin, CA
Built 1972 Load: 47.3 t ADT: 801
CANYON CREEK ROAD
GoodOver: LITTLE E FORK CANYON CRK
NE OF HELENA AND SR 299, Trinity, CA
Built 2002 Load: 47.3 t ADT: 20
STATE ROUTE 23
GoodOver: ARROYO SIMI
07-VEN-023-T12.04-MRPK, Ventura, CA
Built 1970 Load: 47.3 t ADT: 11,300
INTERSTATE 580 WB
GoodOver: GRANT LINE ROAD
04-ALA-580-R1.48, Alameda, CA
Built 1969 Load: 47.6 t ADT: 87,500
NO DATA ENTERED
GoodOver: NO DATA ENTERED
S21 T6N R5E, Humboldt, CA
Built 1981 Load: 47.6 t ADT: 50
Showing 25,201-25,250 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 |