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
HARDING BLVD
FairOver: MINERS RAVINE
0.2 MI S ATLANTIC ST, Placer, CA
Built 1985 Load: 32.4 t ADT: 24,000
FOOTHILLS BLVD
FairOver: UP RR,BNSF,AMTRAK,DRY CR
0.8 MI N COUNTY LINE, Placer, CA
Built 1988 Load: 32.4 t ADT: 37,100
TWELVE BRIDGES DR
FairOver: N BRANCH ORCHARD CREEK
W OF STATE ROUTE 65, Placer, CA
Built 2000 Load: 32.4 t ADT: 3,000
SECRET RAVINE PKWY
FairOver: FALSE RAVINE
1 MI E OF E ROSEVILLE PW, Placer, CA
Built 2001 Load: 32.4 t ADT: 9,700
E ROSEVILLE PKWY
FairOver: MINERS RAVINE
0.4 MI S SECRET RAVINE PW, Placer, CA
Built 2001 Load: 32.4 t ADT: 36,300
CROCKER RANCH ROAD
FairOver: PLEASANT GROVE CREEK
0.5 MI N OF BLUE OAKS BL, Placer, CA
Built 2003 Load: 32.4 t ADT: 2,419
DOWD ROAD
FairOver: BIG YANKEE SLOUGH
WEST OF RTE 65 PM 22.3, Placer, CA
Built 2012 Load: 32.4 t ADT: 756
JOINER PARKWAY NB
FairOver: AUBURN RAVINE
0.1 MI NORTH OF MOORE RD, Placer, CA
Built 2005 Load: 32.4 t ADT: 6,932
BRENTFORD CIRCLE
FairOver: INGRAM SLOUGH
NEAR CALEDON CIRCLE, Placer, CA
Built 2005 Load: 32.4 t ADT: 2,200
BRENTFORD CIRCLE
FairOver: INGRAM SLOUGH
NEAR ALBERTON CIRCLE, Placer, CA
Built 2005 Load: 32.4 t ADT: 2,200
FIDDYMENT RD
FairOver: PLEASANT GROVE CREEK
JUST NTH OF BLUE OAKS, Placer, CA
Built 2007 Load: 32.4 t ADT: 13,668
STATE ROUTE 284
FairOver: LITTLE LAST CHANCE CREEK
02-PLU-284-5.60, Plumas, CA
Built 2000 Load: 32.4 t ADT: 640
STATE ROUTE 284
FairOver: LITTLE LAST CHANCE CREEK
02-PLU-284-7.31, Plumas, CA
Built 2000 Load: 32.4 t ADT: 640
STATE ROUTE 70
FairOver: SPANISH CREEK
02-PLU-070-35.32, Plumas, CA
Built 2012 Load: 32.4 t ADT: 3,375
MOHAWK HWY
FairOver: MIDDLE FORK FEATHER RIV
0.4 MI S/E OF S.H. 70, Plumas, CA
Built 1989 Load: 32.4 t ADT: 690
QUINCY-LA PORTE RD
FairOver: MIDDLE FORK FEATHER RIV
7.9 MI S/W SH 70, Plumas, CA
Built 1975 Load: 32.4 t ADT: 180
QUINCY-LA PORTE RD
FairOver: NELSON CREEK
10.4 MI SOUTH OF SH 70, Plumas, CA
Built 1986 Load: 32.4 t ADT: 180
MAIN STREET
FairOver: WOLF CREEK
0.2 MI SW SH 89, Plumas, CA
Built 1980 Load: 32.4 t ADT: 1,100
VIRGILIA ROAD
FairOver: E BR N FK FEATHER RIVER
0.1 MILE S OF SR 70, Plumas, CA
Built 1949 Load: 32.4 t ADT: 50
SENECA ROAD
FairOver: NORTH FORK FEATHER RIVER
5.6 MI S OF SH 89, Plumas, CA
Built 1983 Load: 32.4 t ADT: 80
DOTTA-GUIDICCI RD
FairOver: LAST CHANCE CREEK
0.6 MI W FRENCHMAN LKE RD, Plumas, CA
Built 1965 Load: 32.4 t ADT: 50
BKWTH GRNVILLE RD
FairOver: HOSSELKUS CREEK
0.3 MI W OF GENESSEE, Plumas, CA
Built 1983 Load: 32.4 t ADT: 115
INTERSTATE 10 EB
FairOver: AIRPORT DITCH
08-RIV-010-R106.16, Riverside, CA
Built 1967 Load: 32.4 t ADT: 23,000
STATE ROUTE 86 SB
FairOver: TURALA DITCH
08-RIV-086-1.82, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: ANITA DITCH
08-RIV-086-0.84, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: SUGINO DITCH
08-RIV-086-0.66, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: SOSTO DITCH
08-RIV-086-0.52, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: PERONE DITCH
08-RIV-086-0.36, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: DINAL DITCH
08-RIV-086-0.19, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 86 SB
FairOver: TRAVERTINE DITCH
08-RIV-086-0.09, Riverside, CA
Built 1989 Load: 32.4 t ADT: 15,300
STATE ROUTE 111
FairOver: NOE WASH
08-RIV-111-15.78, Riverside, CA
Built 1949 Load: 32.4 t ADT: 2,700
STATE ROUTE 111
FairOver: FLATBUSH WASH
08-RIV-111-17.07, Riverside, CA
Built 1948 Load: 32.4 t ADT: 2,700
STATE ROUTE 111
FairOver: MECCA WASH
08-RIV-111-17.99, Riverside, CA
Built 1949 Load: 32.4 t ADT: 2,700
STATE ROUTE 111
FairOver: ZIMMERER WASH
08-RIV-111-13.56, Riverside, CA
Built 1951 Load: 32.4 t ADT: 2,700
STATE ROUTE 111
FairOver: PALM DITCH
08-RIV-111-8.65, Riverside, CA
Built 1951 Load: 32.4 t ADT: 2,700
SR 111 & SR 195
FairOver: LINCOLN DRAINAGE DITCH
08-RIV-111-18.38, Riverside, CA
Built 1949 Load: 32.4 t ADT: 4,400
INTERSTATE 10
FairOver: SOUTH GARNET WASH
08-RIV-010-32.70, Riverside, CA
Built 1954 Load: 32.4 t ADT: 85,000
STATE ROUTE 91 EB
FairOver: TEMESCAL WASH,BNSF,METRO
08-RIV-091-6.93-COR, Riverside, CA
Built 1961 Load: 32.4 t ADT: 145,000
STATE ROUTE 371
FairOver: CAHUILLA CREEK
08-RIV-371-65.44, Riverside, CA
Built 1943 Load: 32.4 t ADT: 7,600
STATE ROUTE 371
FairOver: HAMILTON CREEK
08-RIV-371-74.16, Riverside, CA
Built 1952 Load: 32.4 t ADT: 3,950
INTERSTATE 15 SB
FairOver: BNSF RY,AMTRAK,METROLINK
08-RIV-015-41.25-COR, Riverside, CA
Built 1988 Load: 32.4 t ADT: 76,500
INTERSTATE 15 NB
FairOver: BNSF RY,AMTRAK,METROLINK
08-RIV-015-41.25-COR, Riverside, CA
Built 1988 Load: 32.4 t ADT: 76,500
INTERSTATE 15
FairOver: TEMESCAL WASH
08-RIV-015-40.86-COR, Riverside, CA
Built 1984 Load: 32.4 t ADT: 156,000
INTERSTATE 15 SB
FairOver: WEIRICK ROAD
08-RIV-015-35.64, Riverside, CA
Built 1966 Load: 32.4 t ADT: 73,000
INTERSTATE 15 NB
FairOver: COLDWATER WASH
08-RIV-015-32.96, Riverside, CA
Built 1979 Load: 32.4 t ADT: 60,500
INTERSTATE 10
FairOver: SAN JACK DITCH
08-RIV-010-R19.79, Riverside, CA
Built 1964 Load: 32.4 t ADT: 91,000
INTERSTATE 10 EB
FairOver: AQUEDUCT WASH
08-RIV-010-R75.04, Riverside, CA
Built 1965 Load: 32.4 t ADT: 11,250
INTERSTATE 10 EB
FairOver: RANNELS DRAIN
08-RIV-010-R148.53, Riverside, CA
Built 1969 Load: 32.4 t ADT: 11,250
STATE ROUTE 62
FairOver: DESERT VISTA DRAIN
08-RIV-062-R4.81, Riverside, CA
Built 1966 Load: 32.4 t ADT: 18,000
INTERSTATE 10 WB
FairOver: DESERT CENTER DITCH
08-RIV-010-R104.43, Riverside, CA
Built 1967 Load: 32.4 t ADT: 11,500
Showing 13,301-13,350 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.