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
ROAD
GoodOver: ELLIOTT CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1969 Load: 32.7 t ADT: 15
BROWNS RANCH ROAD
GoodOver: EAST WEAVER CREEK
0.2 MI E OF S.R. 3, Trinity, CA
Built 1955 Load: 32.7 t ADT: 439
AVENUE 288
GoodOver: CAMERON CREEK
0.1 MI E OF RD 168, Tulare, CA
Built 1951 Load: 32.7 t ADT: 1,725
GAVIN MANDRY DRIVE
GoodOver: BRANCH OF HUTCHINSON CK
250 FEET EAST OF INTERSEC, Yuba, CA
Built 2015 Load: 32.7 t ADT: 5,100
STATE ROUTE 89
GoodOver: WILDLIFE ACCESS
10-ALP-089-R19.15, Alpine, CA
Built 1980 Load: 33.0 t ADT: 3,050
STATE ROUTE 99
GoodOver: PINE CREEK
03-BUT-099-45.52, Butte, CA
Built 1934 Load: 33.0 t ADT: 11,600
FIFTH ST (OLD 99W)
GoodOver: NORTH BRANCH SAND CREEK
N OF YOLO CO LIN 9.8 MI, Colusa, CA
Built 1951 Load: 33.0 t ADT: 6,687
GREEN STREET
GoodOver: ARROYO DEL HAMBRE
AT FERRY STREET, Contra Costa, CA
Built 1940 Load: 33.0 t ADT: 3,000
COUNTY ROAD 306
GoodOver: BRISCOE CREEK
2.0 MI S OF S.H. 162, Glenn, CA
Built 1956 Load: 33.0 t ADT: 251
CO RD #19
GoodOver: TEHAMA-COLUSA CANAL
0.3 MI EAST CO RD 'MM', Glenn, CA
Built 1975 Load: 33.0 t ADT: 274
U.S. HIGHWAY 101
GoodOver: OAKCREST COURT
01-HUM-101-R8.60, Humboldt, CA
Built 1969 Load: 33.0 t ADT: 5,700
STATE ROUTE 178 WB
GoodOver: ELIZABETH NORRIS ROAD
06-KER-178-R41.64, Kern, CA
Built 1974 Load: 33.0 t ADT: 2,100
STATE ROUTE 139
GoodOver: WILLOW CREEK
02-LAS-139-17.02, Lassen, CA
Built 1966 Load: 33.0 t ADT: 550
STATE ROUTE 1
GoodOver: ALAMITOS BAY
07-LA-001-0.98-LBCH, Los Angeles, CA
Built 1959 Load: 33.0 t ADT: 38,000
INTERSTATE 10
GoodOver: EATON WASH
07-LA-010-27.85-EMTE, Los Angeles, CA
Built 1956 Load: 33.0 t ADT: 104,700
INTERSTATE 5 NB
GoodOver: METROLINK,UP RR,AMTRAK,
07-LA-005-28.70-BRB, Los Angeles, CA
Built 1959 Load: 33.0 t ADT: 119,510
ROUTE 605 NB
GoodOver: LACMTA & BNSF RY
07-LA-605-25.55-IRW, Los Angeles, CA
Built 1970 Load: 33.0 t ADT: 67,000
N605-W210 CONN
GoodOver: LACMTA & BNSF RY
07-LA-605-25.56-IRW, Los Angeles, CA
Built 1970 Load: 33.0 t ADT: 38,000
INTERSTATE 210
GoodOver: FOOTHILL BLVD
07-LA-210-R7.82-LA, Los Angeles, CA
Built 1980 Load: 33.0 t ADT: 113,000
STATE ROUTE 14
GoodOver: LANCASTER BLVD
07-LA-014-R68.46-LAN, Los Angeles, CA
Built 1972 Load: 33.0 t ADT: 25,500
PECK RD
GoodOver: SAW PIT WASH
0.3MI S/O LIVE OAK AVE, Los Angeles, CA
Built 1960 Load: 33.0 t ADT: 26,124
FAIRFAX AVE
GoodOver: BALLONA CREEK
0.13 MI S/O VENICE BLVD, Los Angeles, CA
Built 1962 Load: 33.0 t ADT: 42,000
AGUA DULCE CYN RD
GoodOver: ESCONDIDO CYN WASH
0.2MI S/O SR-14 FWY, Los Angeles, CA
Built 1962 Load: 33.0 t ADT: 320
ARTESIA BLVD
GoodOver: COYOTE CRK NF
0.3MI W/O VALLEY VIEW AV, Los Angeles, CA
Built 1959 Load: 33.0 t ADT: 24,866
SAN DIMAS AVE
GoodOver: SAN DIMAS WASH
0.3MI N/O I-10 FWY, Los Angeles, CA
Built 1962 Load: 33.0 t ADT: 12,669
ANGELES FOREST HWY
GoodOver: BIG TUJUNGA CYN
16MI N/O FOOTHILL BLVD, Los Angeles, CA
Built 1941 Load: 33.0 t ADT: 1,370
KENILWORTH AVE
GoodOver: VERDUGO WASH
0.3MI N/O US-101 FWY, Los Angeles, CA
Built 1936 Load: 33.0 t ADT: 2,550
FREER ST
GoodOver: ARCADIA WASH
0.4MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1955 Load: 33.0 t ADT: 2,142
SANDRA AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 33.0 t ADT: 408
LAS FLORES AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 33.0 t ADT: 1,020
NORMANDIE AVE
GoodOver: DOMINGUEZ CHAN
0.2MI S/O ARTESIA BLVD, Los Angeles, CA
Built 1958 Load: 33.0 t ADT: 21,420
COMMERCE CENTER DR
GoodOver: HASLEY CYN CRK
1.0MI N/O SR-126 HWY, Los Angeles, CA
Built 1993 Load: 33.0 t ADT: 12,976
LAKE ST
GoodOver: FRESNO RIVER
0.2 MI N/O SR 145, Madera, CA
Built 1968 Load: 33.0 t ADT: 8,804
PT RYES PETLUMA RD
GoodOver: NICASIO CREEK
3.47 MI E STATE HWY 1, Marin, CA
Built 1960 Load: 33.0 t ADT: 10,000
STATE ROUTE 20
GoodOver: COLD CREEK
01-MEN-020-R38.31, Mendocino, CA
Built 1967 Load: 33.0 t ADT: 10,400
CR 111
GoodOver: J CANAL
2.6 MI S OF SH 139, Modoc, CA
Built 1954 Load: 33.0 t ADT: 169
STATE ROUTE 1
GoodOver: KIRK CREEK
05-MON-001-18.91, Monterey, CA
Built 1975 Load: 33.0 t ADT: 2,000
WINDING ROAD
GoodOver: LONG CANYON
NO DATA ENTERED, Placer, CA
Built 1987 Load: 33.0 t ADT: 50
NO DATA ENTERED
GoodOver: JACKASS CREEK
NO DATA ENTERED, Plumas, CA
Built 2017 Load: 33.0 t ADT: 50
INTERSTATE 10 WB
GoodOver: QUARTZ DITCH
08-RIV-010-R108.28, Riverside, CA
Built 1966 Load: 33.0 t ADT: 21,400
INTERSTATE 10 WB
GoodOver: FORNAT WASH
08-RIV-010-R21.67, Riverside, CA
Built 1966 Load: 33.0 t ADT: 45,500
INTERSTATE 10 WB
GoodOver: HAZY GULCH
08-RIV-010-R74.10, Riverside, CA
Built 1965 Load: 33.0 t ADT: 11,250
CAWSTON AVENUE
GoodOver: STETSON AVENUE CHANNEL
50' N/O STETSON AVENUE, Riverside, CA
Built 1975 Load: 33.0 t ADT: 5,500
US 50 (I-305) EB
GoodOver: 26TH STREET
03-SAC-050-L2.20-SAC, Sacramento, CA
Built 1968 Load: 33.0 t ADT: 123,000
INTERSTATE 15 SB
GoodOver: MESCAL DITCH
08-SBD-015-166.84, San Bernardino, CA
Built 1963 Load: 33.0 t ADT: 18,500
INTERSTATE 15 SB
GoodOver: WEST MANIX WASH
08-SBD-015-R100.23, San Bernardino, CA
Built 1963 Load: 33.0 t ADT: 22,000
INTERSTATE 15 NB
GoodOver: WEST MANIX WASH
08-SBD-015-R100.23, San Bernardino, CA
Built 1963 Load: 33.0 t ADT: 22,000
W52-N5 CONNECTOR
GoodOver: MTDB,BNSF RY,AMTRAK,ROSE
11-SD-052-0.37-SD, San Diego, CA
Built 1966 Load: 33.0 t ADT: 13,900
MILTON ROAD
GoodOver: MORMON SLOUGH
0.3 MI E DUNCAN RD, San Joaquin, CA
Built 1974 Load: 33.0 t ADT: 301
JACK TONE RD
GoodOver: CHANNEL A
1 MI N MARIPOSA RD, San Joaquin, CA
Built 1960 Load: 33.0 t ADT: 3,213
Showing 23,751-23,800 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |