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
SWANSON ROAD
FairOver: YANKEE SLOUGH
1.9 MI NE/O SR 70, Sutter, CA
Built 1934 Load: 19.8 t ADT: 963
SWANSON ROAD
FairOver: YANKEE SLOUGH OVERFLOW
1.95 MI NE/O SH 70, Sutter, CA
Built 1934 Load: 19.8 t ADT: 963
SOUTH BUTTE ROAD
FairOver: SUTTER BYPASS W CHANNEL
AT S TARKE RD, Sutter, CA
Built 1999 Load: 19.8 t ADT: 1
STATE ROUTE 32
FairOver: DEER CREEK
02-TEH-032-12.91, Tehama, CA
Built 1939 Load: 19.8 t ADT: 1,100
ROAD 200
FairOver: WOOD CENTRAL DITCH
0.23 MI N OF AVE 152, Tulare, CA
Built 1943 Load: 19.8 t ADT: 100
ITALIAN BAR ROAD
FairOver: S FORK STANISLAUS RIVER
6.75 MI NE BIG HILL RD CO, Tuolumne, CA
Built 1921 Load: 19.8 t ADT: 55
WINDING ROAD
FairOver: N FORK TUOLUMNE RIVER
NO DATA ENTERED, Tuolumne, CA
Built 1981 Load: 19.8 t ADT: 50
CEDAR GROVE ROAD (
FairOver: GRANITE CREEK
KINGS CANYON HWY MP 33.1, Fresno, CA
Built 1953 Load: 20.0 t ADT: 278
WEST TOWN ENTRANCE
FairOver: MEDIA CREEK
Highway 101 to Exit 36 (K, San Benito, CA
Built 1928 Load: 20.0 t ADT: 10
STATE ROUTE 880
FairOver: WARD CREEK
04-ALA-880-14.18-UNC, Alameda, CA
Built 1958 Load: 20.1 t ADT: 202,000
WINDING ROAD
FairOver: COLE CREEK
NO DATA ENTERED, Amador, CA
Built 1962 Load: 20.1 t ADT: 50
PONDEROSA WAY -W B
FairOver: W BRANCH FEATHER RIVER
5 mi N of Paradise, CA, Butte, CA
Built 1935 Load: 20.1 t ADT: 25
STATE ROUTE 12
FairOver: N. FORK CALAVERAS RIVER
10-CAL-012-17.25, Calaveras, CA
Built 1938 Load: 20.1 t ADT: 7,000
HOGAN DAM RD
FairOver: CALAVERAS RIVER
3.8 MI S/O SR 26, Calaveras, CA
Built 1960 Load: 20.1 t ADT: 368
N DOWER AVE
FairOver: HERNDON CANAL
0.01 MI NORTH OF BARSTOW, Fresno, CA
Built 1939 Load: 20.1 t ADT: 320
ROAD 51
FairOver: GLENN-COLUSA CANAL
WEST OF NEWMARK AVE, Glenn, CA
Built 1948 Load: 20.1 t ADT: 140
ALDERPOINT RD
FairOver: CONLEY CREEK
1 MI S OF BLOCKSBURG, Humboldt, CA
Built 1990 Load: 20.1 t ADT: 114
BRICELAND-THORNE
FairOver: MCKEE CREEK
0.1 MI S/O SHELTER COVE, Humboldt, CA
Built 1952 Load: 20.1 t ADT: 420
Service Road
FairOver: Picacho Wash Overchute
7 mi north of Yuma, AZ, Imperial, CA
Built 1970 Load: 20.1 t ADT: 50
SWARTHOUT RD
FairOver: WESTSIDE MAIN CANAL
0.2 MI S/O EDGAR RD, Imperial, CA
Built 1950 Load: 20.1 t ADT: 66
4TH STREET
FairOver: PALO VERDE LAGOON
300 FT E/O SR 78, Imperial, CA
Built 1950 Load: 20.1 t ADT: 800
AVENUE 17.5
FairOver: BERENDA CREEK
EAST OF ROAD 17, Madera, CA
Built 1940 Load: 20.1 t ADT: 50
STATE ROUTE 59 SB
FairOver: BEAR CREEK
10-MER-059-15.23-MER, Merced, CA
Built 1940 Load: 20.1 t ADT: 14,000
ATWATER BOULEVARD
FairOver: ATWATER CANAL
0.1 MI S/E BERT CRANE RD, Merced, CA
Built 1912 Load: 20.1 t ADT: 4,000
PFITZER ROAD
FairOver: CCID MAIN CANAL
0.1 MI EAST OF SR 33, Merced, CA
Built 1926 Load: 20.1 t ADT: 102
ATWATER JORDAN RD
FairOver: ATWATER CANAL
0.3 MI W CENTRAL AVENUE, Merced, CA
Built 1928 Load: 20.1 t ADT: 1,206
WISE RD
FairOver: COON CREEK
1.0 MI E BREWER RD, Placer, CA
Built 1955 Load: 20.1 t ADT: 95
PONDEROSA RD
FairOver: "S" CREEK (JEFFERSON CR)
5 MI S/E OF WEIMAR, Placer, CA
Built 1935 Load: 20.1 t ADT: 50
ROAD 22N94
FairOver: CASCADE CREEK
NO DATA ENTERED, Plumas, CA
Built 1966 Load: 20.1 t ADT: 60
28TH ST
FairOver: GOAT CREEK
0.2 MI N OF U ST, Sacramento, CA
Built 1939 Load: 20.1 t ADT: 3,120
ROUTE 40 E BOUND
FairOver: IWO JIMA STREET
08-SBD-040-R3.43, San Bernardino, CA
Built 1964 Load: 20.1 t ADT: 19,500
ORANGE ST
FairOver: ELDER GULCH
0.1 MI S OF FIFTH ST, San Bernardino, CA
Built 1936 Load: 20.1 t ADT: 7,012
NAT TRAILS HWY
FairOver: DAGGET DITCH
0.50 MI E DAGGET YERMO RD, San Bernardino, CA
Built 1929 Load: 20.1 t ADT: 1,052
NORTH ACCESS BR.RD
FairOver: EAST ETIWANDA CREEK
0.1 MI NORTH OF I30, San Bernardino, CA
Built 1999 Load: 20.1 t ADT: 2
TRACY BOULEVARD
FairOver: GRANT LINE CANAL
3 MI N OF I 205, San Joaquin, CA
Built 1959 Load: 20.1 t ADT: 4,513
EL CAMINO REAL
FairOver: SANTA MARGARITA CREEK
AT ASUNCION RD, San Luis Obispo, CA
Built 1930 Load: 20.1 t ADT: 5,046
STATE ROUTE 246
FairOver: SANTA YNEZ RIVER
05-SB-246-9.82, Santa Barbara, CA
Built 1939 Load: 20.1 t ADT: 8,500
INTERSTATE 680
FairOver: BERRYESSA CREEK
04-SCL-680-M5.81-SJS, Santa Clara, CA
Built 1974 Load: 20.1 t ADT: 175,000
STATE ROUTE 1 SB
FairOver: SAN LORENZO RIVER
05-SCR-001-17.41-SCR, Santa Cruz, CA
Built 1956 Load: 20.1 t ADT: 30,000
LAKESHORE DRIVE
FairOver: DONEY CREEK
0.8 MI SW ANTLR UC ON I-5, Shasta, CA
Built 1927 Load: 20.1 t ADT: 2,178
MAIN STREET
FairOver: CASTLE CREEK
0.2 MI S CASTLE CR RD,I-5, Shasta, CA
Built 1918 Load: 20.1 t ADT: 452
BIG SPRINGS ROAD
FairOver: LITTLE SHASTA RIVER
.5 MI S LWR LTL SHASTA RD, Siskiyou, CA
Built 1959 Load: 20.1 t ADT: 45
COLD BOTTLE SPRING
FairOver: LITTLE SHASTA RIVER
GOOSENEST, Siskiyou, CA
Built 1970 Load: 20.1 t ADT: 20
ALAMO DR
FairOver: ALAMO CREEK
EAST OF DAVIS STREET, Solano, CA
Built 1970 Load: 20.1 t ADT: 21,120
WESTSIDE ROAD
FairOver: MILL CREEK
0.2 MI N FOREMAN LANE, Sonoma, CA
Built 1961 Load: 20.1 t ADT: 3,200
WARM SPRINGS RD
FairOver: SONOMA CREEK
2.8 MI S OF SR 12, Sonoma, CA
Built 1931 Load: 20.1 t ADT: 800
FINK ROAD
FairOver: DELTA-MENDOTA CANAL
2.0 MILES EAST OF I-5, Stanislaus, CA
Built 1948 Load: 20.1 t ADT: 2,201
FINNEY ROAD
FairOver: M.I.D. LATERAL #6
0.3 MI N MURPHY/BACON RD, Stanislaus, CA
Built 1922 Load: 20.1 t ADT: 1,165
DALE ROAD
FairOver: M.I.D. MAIN CANAL
0.5 MI S OF LADD ROAD, Stanislaus, CA
Built 1925 Load: 20.1 t ADT: 3,776
MOOREHEAD ROAD
FairOver: CCID MAIN CANAL
W/O DRAPER RD, Stanislaus, CA
Built 1926 Load: 20.1 t ADT: 350
Showing 9,301-9,350 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.