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
IRON MOUNTAIN RD
FairOver: ROCK CREEK
5.6 MI N OF STATE RT 299, Shasta, CA
Built 1970 Load: 34.0 t ADT: 817
CASSEL-FALL RIV RD
FairOver: PIT RIVER
0.3 MI SE SR 299 FALL RIV, Shasta, CA
Built 1922 Load: 34.0 t ADT: 352
PONDEROSA WAY
FairOver: SOUTH FORK COW CREEK
3.5 MI S WHITMORE RD, Shasta, CA
Built 1935 Load: 34.0 t ADT: 87
W. A. BARR RD
FairOver: SACRAMENTO RIVER
1.5 MI S OF W REAM AVE, Siskiyou, CA
Built 1968 Load: 34.0 t ADT: 864
INTERSTATE 505 NB
FairOver: MIDWAY RD
04-SOL-505-R3.06-VAC, Solano, CA
Built 1974 Load: 34.0 t ADT: 16,750
RIVER RD
FairOver: HOBSON CREEK
5.19 MI INTX WITH SR 116, Sonoma, CA
Built 1950 Load: 34.0 t ADT: 10,000
SONOMA MTN RD
FairOver: LYNCH CREEK
0.35 MI NW ADOBE RD, Sonoma, CA
Built 1984 Load: 34.0 t ADT: 475
SUMMERHOME PARK RD
FairOver: HILLSIDE
0.1 MI NW LAUREL RD, Sonoma, CA
Built 1930 Load: 34.0 t ADT: 50
SCOUTS CAMP RD
FairOver: SALMON CREEK
0.23 MI S BOHEMIAN HWY, Sonoma, CA
Built 1960 Load: 34.0 t ADT: 100
RESERVOIR ROAD
FairOver: M.I.D. MAIN CANAL
0.05 MI N/O SR 132, Stanislaus, CA
Built 1962 Load: 34.0 t ADT: 1,200
INTERSTATE 5 SB
FairOver: SACRAMENTO RIVER
02-TEH-005-R25.40-RBL, Tehama, CA
Built 1964 Load: 34.0 t ADT: 15,500
ROUND VALLEY ROAD
FairOver: THOMES CREEK
0.05 MI N BLY AVE, Tehama, CA
Built 1949 Load: 34.0 t ADT: 210
LONG RIDGE ROAD
FairOver: SALT CREEK
2 MI E JCT HOAGLIN RD, Trinity, CA
Built 1950 Load: 34.0 t ADT: 15
ROAD M112
FairOver: DEER CREEK
5.11 MI SE/O M120, Tulare, CA
Built 1967 Load: 34.0 t ADT: 25
SR 118 EB
FairOver: CALDWELL AVE (CLOSED)
07-VEN-118-R24.15-SIMV, Ventura, CA
Built 1970 Load: 34.0 t ADT: 57,000
INTERSTATE 505
FairOver: CHICKAHOMINY SLOUGH
03-YOL-505-3.37, Yolo, CA
Built 1959 Load: 34.0 t ADT: 12,000
INTERSTATE 505
FairOver: UNION SCHOOL SLOUGH
03-YOL-505-5.71, Yolo, CA
Built 1959 Load: 34.0 t ADT: 12,000
C. R. 87
FairOver: CACHE CREEK
1.2 MILES N OF S.H. 16, Yolo, CA
Built 1978 Load: 34.0 t ADT: 951
INDUSTRL PKWY-N880
FairOver: WARD CREEK
04-ALA-880-14.56-HAY, Alameda, CA
Built 1968 Load: 34.3 t ADT: 6,100
VALE RD
FairOver: WILDCAT CREEK
0.2 MI S SAN PABLO AVE, Contra Costa, CA
Built 1960 Load: 34.3 t ADT: 5,000
STRAWBERRY LN
FairOver: S FORK AMERICAN RIVER
0.1 MI SE/O SR 50, El Dorado, CA
Built 1962 Load: 34.3 t ADT: 285
NO DATA ENTERED
FairOver: CAMP CREEK
NO DATA ENTERED, El Dorado, CA
Built 1958 Load: 34.3 t ADT: 50
WINDING ROAD
FairOver: N.FORK COSUMNES
NO DATA ENTERED, El Dorado, CA
Built 1981 Load: 34.3 t ADT: 50
S ANCHOR AVE
FairOver: FRIANT-KERN CANAL
0.6 MI NORTH OF LINCOLN, Fresno, CA
Built 1955 Load: 34.3 t ADT: 400
N DE WOLF AVE
FairOver: MILL DITCH
0.7 MI SOUTH OF SHIELDS, Fresno, CA
Built 1940 Load: 34.3 t ADT: 1,300
INTERSTATE 710
FairOver: UP RR & NOAKES STREET
07-LA-710-22.66-CMRC, Los Angeles, CA
Built 1954 Load: 34.3 t ADT: 216,000
STATE ROUTE 14
FairOver: AVENUE "J"
07-LA-014-R67.95-LAN, Los Angeles, CA
Built 1972 Load: 34.3 t ADT: 25,500
WILLOW ST
FairOver: LOS CERITOS DRN
400FT W/O PALO VERDE AVE, Los Angeles, CA
Built 1954 Load: 34.3 t ADT: 22,154
PALO VERDE AVE
FairOver: LOS CERITOS DRN CHAN
250FT S/O WILLOW ST, Los Angeles, CA
Built 1956 Load: 34.3 t ADT: 20,140
DEL AMO BLVD
FairOver: SAN GABRIEL RIV
0.4MI W/O I-605 FWY, Los Angeles, CA
Built 1966 Load: 34.3 t ADT: 28,629
MILLER DRIVE
FairOver: HILLSIDE
200 FT W OF SUNSET BLVD, Los Angeles, CA
Built 1955 Load: 34.3 t ADT: 370
VANOWEN STREET
FairOver: SOUTH BRANCH BELL CREEK
0.25 W/O FALLBROOK AVE, Los Angeles, CA
Built 1949 Load: 34.3 t ADT: 16,246
GRAND AVE
FairOver: ARCADIA WASH
0.4MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1955 Load: 34.3 t ADT: 1,632
70TH ST W
FairOver: CALIFORNIA AQUEDUCT
0.2MI S/O AVE N, Los Angeles, CA
Built 1975 Load: 34.3 t ADT: 1,122
PARK ORA
FairOver: DRY CYN CHAN
300FT W/O VALMAR RD, Los Angeles, CA
Built 1985 Load: 34.3 t ADT: 5,100
SIERRA HWY
FairOver: MINT CYN WASH
5.5MI N/O SOLEDAD CYN RD, Los Angeles, CA
Built 1997 Load: 34.3 t ADT: 8,708
GRANADA DR (RD 25)
FairOver: FRESNO RIVER
0.4 MI S/O AVE 15.5, Madera, CA
Built 1976 Load: 34.3 t ADT: 9,275
AVENUE 26
FairOver: BERENDA SLOUGH
0.5 MI E OF RD 19, Madera, CA
Built 1975 Load: 34.3 t ADT: 650
US HIGHWAY 101 NB
FairOver: BRADLEY RD
05-MON-101-R7.94, Monterey, CA
Built 1965 Load: 34.3 t ADT: 8,100
STATE ROUTE 1 SB
FairOver: LAKE DRIVE
05-MON-001-R85.51, Monterey, CA
Built 1976 Load: 34.3 t ADT: 23,000
CROSS COUNTRY ROAD
FairOver: VINEYARD CANYON CREEK
0.1 MI N VINEYARD CNYN RD, Monterey, CA
Built 1940 Load: 34.3 t ADT: 210
POWER INN RD
FairOver: MORRISON CREEK
0.1 MI S OF LEMON HILL, Sacramento, CA
Built 1965 Load: 34.3 t ADT: 13,149
HOWE AVE SB
FairOver: AMERICAN RIVER
0.4 MI N/O SR 50, Sacramento, CA
Built 1969 Load: 34.3 t ADT: 30,272
HOWE AVE NB
FairOver: AMERICAN RIVER
0.4 MI N/O SR 50, Sacramento, CA
Built 1969 Load: 34.3 t ADT: 29,219
INTERSTATE 15 NB
FairOver: KALI DITCH
08-SBD-015-154.68, San Bernardino, CA
Built 1961 Load: 34.3 t ADT: 18,500
INTERSTATE 40 WB
FairOver: HECTOR ROAD
08-SBD-040-R32.50, San Bernardino, CA
Built 1967 Load: 34.3 t ADT: 8,150
INTERSTATE 40 EB
FairOver: HECTOR ROAD
08-SBD-040-R32.50, San Bernardino, CA
Built 1967 Load: 34.3 t ADT: 8,150
RIVERSIDE DR
FairOver: SAN ANTONIO CHANNEL
0.3 MI E LOS A CO LINE, San Bernardino, CA
Built 1958 Load: 34.3 t ADT: 15,990
INTERSTATE 5
FairOver: CAMP PENDLETON
11-SD-005-R54.39-OCN, San Diego, CA
Built 1955 Load: 34.3 t ADT: 78,000
INTERSTATE 580 EB
FairOver: GAFFERY ROAD
10-SJ-580-L0.23, San Joaquin, CA
Built 1967 Load: 34.3 t ADT: 11,000
Showing 15,051-15,100 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.