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
U.S. HIGHWAY 101
FairOver: SIERRA AVE
04-SON-101-12.00-COTI, Sonoma, CA
Built 1956 Load: 20.4 t ADT: 86,000
PETALUMA HILL RD
FairOver: COPELAND CREEK
5.2 MI INTER STONY PNT RD, Sonoma, CA
Built 1969 Load: 20.4 t ADT: 16,000
FREESTONE FLAT RD
FairOver: SALMON CREEK
0.2 MI E BOHEMIAN HWY, Sonoma, CA
Built 1955 Load: 20.4 t ADT: 121
HAZELDEAN ROAD
FairOver: MID LOWR WATERFORD CANAL
1.45 MI N/O SR 132, Stanislaus, CA
Built 1927 Load: 20.4 t ADT: 318
STATE ROUTE 99
FairOver: S BR OF N FK MILL CREEK
02-TEH-099-13.96, Tehama, CA
Built 1921 Load: 20.4 t ADT: 9,300
BOWMAN RD
FairOver: PINE CREEK
6.0 MI WEST OF I-5, Tehama, CA
Built 1941 Load: 20.4 t ADT: 3,069
RAWSON RD
FairOver: BURCH CREEK
0.3 MI S/O CORNING RD, Tehama, CA
Built 1957 Load: 20.4 t ADT: 617
AVE 264
FairOver: OUTSIDE CREEK
0.5 MI E OF RD 164, Tulare, CA
Built 1969 Load: 20.4 t ADT: 300
CANADA LARGA RD
FairOver: COCHE CANYON
3.3 MI E RTE 33, Ventura, CA
Built 1930 Load: 20.4 t ADT: 100
WHEELER CYN RD
FairOver: TODD BARRANCA
2.61 MI N OF FOOTHILL RD, Ventura, CA
Built 1937 Load: 20.4 t ADT: 850
INTERSTATE 880
FairOver: UP RR YARD SPUR
04-ALA-880-13.81-UNC, Alameda, CA
Built 1957 Load: 20.7 t ADT: 202,000
KILKARE RD
FairOver: SINBAD CREEK
0.25 MI NW OF FOOTHILL RD, Alameda, CA
Built 1985 Load: 20.7 t ADT: 1,100
SOUTH VASCO RD
FairOver: ARROYO SECO
0.1 MI N/O EAST AVE, Alameda, CA
Built 1958 Load: 20.7 t ADT: 9,400
RAILROAD AVE
FairOver: DRY CREEK
0.2 MI S WHIPPLE RD, Alameda, CA
Built 1959 Load: 20.7 t ADT: 5,500
PLSNT VLY RD
FairOver: HOT SPRINGS CREEK
1.1 MI W/O MARKLEEVILLE, Alpine, CA
Built 1974 Load: 20.7 t ADT: 400
CLR CR CEMETERY RD
FairOver: CLEAR CREEK
0.1 MI E OF S.R. 191, Butte, CA
Built 1940 Load: 20.7 t ADT: 106
TABLE MTN BLVD
FairOver: CAMPBELL CREEK
0.4 MI NO OF TABLE MT OC, Butte, CA
Built 1930 Load: 20.7 t ADT: 456
WARNER ST
FairOver: BIG CHICO CREEK
BTW 1ST ST & LEGION AVE, Butte, CA
Built 1938 Load: 20.7 t ADT: 7,600
INTERSTATE 680 SB
FairOver: UP,BNSF,AMTRAK,SUISUN BA
04-CC-680-25.04L-MTZ, Contra Costa, CA
Built 1962 Load: 20.7 t ADT: 115,000
DIAMOND BLVD
FairOver: WALNUT CREEK
0.1 MI N WILLOW PASS RD, Contra Costa, CA
Built 1966 Load: 20.7 t ADT: 33,000
N FAIRFAX AVE
FairOver: DELTA-MENDOTA CANAL
1.6 MI NORTH OF NEES AVE, Fresno, CA
Built 1950 Load: 20.7 t ADT: 200
N DE WOLF AVE
FairOver: GOULD CANAL
0.5 MI NORTH OF SHIELDS, Fresno, CA
Built 1925 Load: 20.7 t ADT: 2,200
AVOCADO LAKE PK RD
FairOver: ALTA MAIN CANAL
AVOCADO LAKE PARK, Fresno, CA
Built 1962 Load: 20.7 t ADT: 1,000
ROAD 61
FairOver: PROVIDENT CANAL
6.04 MI EAST OF RD 99W, Glenn, CA
Built 1948 Load: 20.7 t ADT: 928
STATE ROUTE 299
FairOver: EAST FORK WILLOW CREEK
01-HUM-299-33.21, Humboldt, CA
Built 1956 Load: 20.7 t ADT: 3,200
STATE ROUTE 255
FairOver: SAMOA CHANNEL
01-HUM-255-1.37-EUR, Humboldt, CA
Built 1971 Load: 20.7 t ADT: 7,300
BRICELAND ROAD
FairOver: REDWOOD CREEK (REDWAY)
WHITTEMORE STATE PARK, Humboldt, CA
Built 1938 Load: 20.7 t ADT: 260
KEFFER RD
FairOver: ALAMO RIVER
0.5 MI E/O SR-7, Imperial, CA
Built 1965 Load: 20.7 t ADT: 500
NELSON PIT RD
FairOver: EAST HIGHLINE CANAL
1.2 MI E/O MILLER RD, Imperial, CA
Built 1950 Load: 20.7 t ADT: 100
MELOLAND ROAD
FairOver: CENTRAL DRAIN
1.9 MI N/O EVAN HEWES HWY, Imperial, CA
Built 1940 Load: 20.7 t ADT: 626
BARTLETT SPRING RD
FairOver: BARTLETT CREEK
13.7 MI NE OF SR 20, Lake, CA
Built 1960 Load: 20.7 t ADT: 80
U.S. HIGHWAY 395
FairOver: DILL SLOUGH
02-LAS-395-R71.17, Lassen, CA
Built 1992 Load: 20.7 t ADT: 1,700
IMPERIAL HWY
FairOver: NORTH FRK COYOTE CR
1.0MI S/O TELEGRAPH RD, Los Angeles, CA
Built 1960 Load: 20.7 t ADT: 50,042
PASADENA AVE
FairOver: LITTLE DALTON WASH
0.8MI S/O FOOTHILL BLVD, Los Angeles, CA
Built 1960 Load: 20.7 t ADT: 2,960
SR 145
FairOver: FRIANT-MADERA CANAL
06-MAD-145-22.82, Madera, CA
Built 1944 Load: 20.7 t ADT: 6,200
ROAD 19
FairOver: DRY CREEK
0.1 MI N/O AVE 16 1/2, Madera, CA
Built 1973 Load: 20.7 t ADT: 400
BRANSCOMB ROAD
FairOver: REDWOOD CREEK
0.8 MI W INTX CR 320, Mendocino, CA
Built 1981 Load: 20.7 t ADT: 104
STATE ROUTE 152 EB
FairOver: SANTA RITA CANAL
10-MER-152-R34.50, Merced, CA
Built 1921 Load: 20.7 t ADT: 8,425
BALE LANE
FairOver: NAPA RIVER
0.1 MI W SILVERADO TRAIL, Napa, CA
Built 1937 Load: 20.7 t ADT: 813
BREA CANYON BLVD.
FairOver: BREA CANYON CHANNEL
0.6 MI N/O CENTRAL AVENUE, Orange, CA
Built 1930 Load: 20.7 t ADT: 20,709
SIERRA BLVD
FairOver: UP RR & AMTRAK
ROSEVILLE ST & LINCOLN ST, Placer, CA
Built 1929 Load: 20.7 t ADT: 2,960
ROUTE 74
FairOver: N FK SAN JACINTO RIVER
08-RIV-074-50.29, Riverside, CA
Built 1929 Load: 20.7 t ADT: 3,774
MSSN BL/BUENA VST
FairOver: SANTA ANA RIVER
1.47 MI. W/O RTE 91 FWY., Riverside, CA
Built 1958 Load: 20.7 t ADT: 23,060
SUNRISE BLVD
FairOver: FOLSOM SOUTH CANAL
0.8 MI S OF US 50, Sacramento, CA
Built 1971 Load: 20.7 t ADT: 31,297
NAT TRAILS HWY
FairOver: BUD DITCH
3 MI E OF CRUCERO RD, San Bernardino, CA
Built 1930 Load: 20.7 t ADT: 230
STATE ROUTE 79
FairOver: SOME CREEK
11-SD-079-41.96, San Diego, CA
Built 1927 Load: 20.7 t ADT: 1,700
MOUNT HELIX DR
FairOver: MOUNT HELIX DR
0.36MI S/O FUERTE DRIVE, San Diego, CA
Built 1934 Load: 20.7 t ADT: 859
INTERSTATE 5
FairOver: MOKELUMNE RIVER
10-SJ-005-49.78, San Joaquin, CA
Built 1979 Load: 20.7 t ADT: 26,500
INTERSTATE 5
FairOver: MOKELUMNE RIVER
10-SJ-005-49.78, San Joaquin, CA
Built 1979 Load: 20.7 t ADT: 26,500
CALIFORNIA AVE
FairOver: TOM PAINE SLOUGH
0.2 MI S OF CANAL BLVD, San Joaquin, CA
Built 1957 Load: 20.7 t ADT: 748
Showing 9,401-9,450 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.