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
HARVARD AVENUE
FairOver: SAN JOAQUIN CHANNEL
0.2 MI S MICHELSON DR, Orange, CA
Built 1981 Load: 32.4 t ADT: 19,000
CREEK ROAD
FairOver: SAN DIEGO CREEK CHANNEL
0.1 MI SW BARRANCA PARKY, Orange, CA
Built 1981 Load: 32.4 t ADT: 5,000
RIDGELINE DRIVE
FairOver: SAND CANYON CHANNEL
300' S/O UNIVERSITY DRIVE, Orange, CA
Built 1976 Load: 32.4 t ADT: 12,700
CREEKSIDE DRIVE
FairOver: ALISO CREEK
200' SE/O EL TORO ROAD, Orange, CA
Built 1980 Load: 32.4 t ADT: 1,000
JERONIMO ROAD
FairOver: OSO CREEK SERVICE ROAD
0.31 MI E MARGUERITE PKY, Orange, CA
Built 1973 Load: 32.4 t ADT: 15,313
NELLIE GAIL ROAD
FairOver: NARCO CHANNEL
0.1 MI S/O OSO PARKWAY, Orange, CA
Built 1979 Load: 32.4 t ADT: 2,700
ALICIA PARKWAY
FairOver: SULPHUR CREEK
0.32 MI S ALISO CREEK DR, Orange, CA
Built 1976 Load: 32.4 t ADT: 35,200
CAMINO DEL AVION
FairOver: SALT CREEK BIKE PATH
0.4 MI E CROWN VLY PKWY, Orange, CA
Built 1980 Load: 32.4 t ADT: 11,900
CALLE FRONTERA
FairOver: SEGUNDA DESHECHA CANADA
100' W/O AVENIDA PICO, Orange, CA
Built 1981 Load: 32.4 t ADT: 4,000
AVENIDA PICO
FairOver: SEGUNDA DESHECHA CANADA
0.2 MI NE/O I-5 FREEWAY, Orange, CA
Built 1981 Load: 32.4 t ADT: 47,000
WEIR CANYON ROAD
FairOver: SANTA ANA RIVER CHANNEL
0.2 MI NORTH OF FWY 91, Orange, CA
Built 1983 Load: 32.4 t ADT: 34,000
VILLA PARK ROAD
FairOver: SANTIAGO CREEK
1.74 MI. E/O ROUTE 55 FWY, Orange, CA
Built 1982 Load: 32.4 t ADT: 26,000
W/B SNTA MRGTA PWY
FairOver: ARROYO TRABUCO
0.2 MI E/O ALICIA PARKWAY, Orange, CA
Built 1991 Load: 32.4 t ADT: 29,150
E/B SNTA MRGTA PWY
FairOver: ARROYO TRABUCO
0.2 MI. SE/O ALICIA PKWY, Orange, CA
Built 1984 Load: 32.4 t ADT: 29,150
WEIR CANYON ROAD
FairOver: OLD CANAL ROAD
0.2 MI N/O FWY 91, Orange, CA
Built 1984 Load: 32.4 t ADT: 34,000
W/B LGNA HILLS DR
FairOver: ALISO CREEK
400' E/O MOULTON PKWY, Orange, CA
Built 1985 Load: 32.4 t ADT: 3,618
E/B LGNA HILLS DR
FairOver: ALISO CREEK
400' E/O MOULTON PKWY, Orange, CA
Built 1985 Load: 32.4 t ADT: 3,606
EL CAMINO REAL
FairOver: EL MODENA-IRVINE CHANNEL
100' NW/O MYFORD ROAD, Orange, CA
Built 1987 Load: 32.4 t ADT: 16,000
BRYAN AVENUE
FairOver: EL MODENA-IRVINE CHANNEL
100' NW/O MYFORD ROAD, Orange, CA
Built 1987 Load: 32.4 t ADT: 15,000
NORMANDALE DRIVE
FairOver: ALISO CREEK
200' W/O EL TORO ROAD, Orange, CA
Built 1987 Load: 32.4 t ADT: 4,000
VIA LOMAS DE YORBA
FairOver: BNSF RY,AMTRAK,METROLINK
0.2 MI. N/O LA PALMA AVE., Orange, CA
Built 1986 Load: 32.4 t ADT: 7,500
W/B UNIVERSITY DR.
FairOver: BONITA CREEK CHANNEL
0.1 MI W/O MACARTHUR BLVD, Orange, CA
Built 1988 Load: 32.4 t ADT: 11,000
JAMBOREE RD
FairOver: MOFFETT DRIVE
0.5 MI S/O EDINGER AVE, Orange, CA
Built 1991 Load: 32.4 t ADT: 80,000
KATELLA AVE EB
FairOver: SANTA ANA RIVER CHANNEL
0.3 MI. E/O ROUTE 57 FWY, Orange, CA
Built 1989 Load: 32.4 t ADT: 13,500
W/B ALTON PARKWAY
FairOver: SAN DIEGO CREEK CHANNEL
0.7 MI E/O SAND CANYON, Orange, CA
Built 1988 Load: 32.4 t ADT: 9,800
E/B ALTON PARKWAY
FairOver: SAN DIEGO CREEK CHANNEL
0.7 MI E/O SAND CANYON, Orange, CA
Built 1988 Load: 32.4 t ADT: 8,200
HARVARD AVE
FairOver: SAN DIEGO CREEK CHANNEL
100' S/O BARRANCA PKWY, Orange, CA
Built 1988 Load: 32.4 t ADT: 20,000
S/B FAIRVIEW ROAD
FairOver: HILLSIDE
0.05 MI S/O ROUTE 405 FWY, Orange, CA
Built 1989 Load: 32.4 t ADT: 42,000
S/B JAMBOREE ROAD
FairOver: PETERS CANYON CHANNEL
0.7 MI NE/O IRVINE BLVD., Orange, CA
Built 1989 Load: 32.4 t ADT: 14,000
N/B JAMBOREE ROAD
FairOver: PETERS CANYON CHANNEL
0.7 MI NE/O IRVINE BLVD., Orange, CA
Built 1989 Load: 32.4 t ADT: 14,000
CORONADO
FairOver: SAN DIEGO CREEK CHANNEL
0.3 MI NW/O HARVARD AVE, Orange, CA
Built 1989 Load: 32.4 t ADT: 5,000
IRVINE CENTER DRIV
FairOver: SAN DIEGO CREEK CHANNEL
0.3 MI S/O BAKE PKWY, Orange, CA
Built 1989 Load: 32.4 t ADT: 18,400
IRVINE BLVD
FairOver: BORREGO CYN CHANNEL
200' N/O ALTON PARKWAY, Orange, CA
Built 1988 Load: 32.4 t ADT: 22,300
GYPSUM CANYON ROAD
FairOver: SANTA ANA RIVER
0.2 MI. N/O ROUTE 91 FWY., Orange, CA
Built 1989 Load: 32.4 t ADT: 11,449
BARRANCA PARKWY
FairOver: MARSHBURN CHANNEL
0.2 MI. E/O SAND CYN AVE, Orange, CA
Built 1989 Load: 32.4 t ADT: 12,000
CROWTHER AVENUE
FairOver: CARBON CANYON CHANNEL
0.2 MI. W/O ORANGETHORPE, Orange, CA
Built 1990 Load: 32.4 t ADT: 3,300
W/B DIMENSION DR.
FairOver: SERRANO CREEK
0.3 MI. W/O LAKE FOREST, Orange, CA
Built 1987 Load: 32.4 t ADT: 6,000
E/B DIMENSION DR.
FairOver: SERRANO CREEK
0.3 MI. W/O LAKE FOREST, Orange, CA
Built 1987 Load: 32.4 t ADT: 6,080
PORTOLA PARKWAY
FairOver: SERRANO CREEK
0.3 MI. SE/O LAKE FOREST, Orange, CA
Built 1991 Load: 32.4 t ADT: 35,000
LAKE FOREST DRIVE
FairOver: EQUESTRIAN TRAIL UC
200 FT NO. OF RANCHO PKWY, Orange, CA
Built 1990 Load: 32.4 t ADT: 8,415
JUANITA STREET
FairOver: CARBON CREEK CHANNEL
0.1 MI. N/O BALL ROAD, Orange, CA
Built 1989 Load: 32.4 t ADT: 2,475
ANTONIO PARKWAY
FairOver: TIJERAS CREEK
0.8 MI SW/O AVENIDA BNDRA, Orange, CA
Built 1991 Load: 32.4 t ADT: 34,300
STONEHILL DRIVE
FairOver: SAN JUAN CREEK CHANNEL
0.4 MI. E/O DEL OBISPO ST, Orange, CA
Built 1992 Load: 32.4 t ADT: 31,000
PORTOLA PKWY
FairOver: ALISO CREEK
100' W/O EL TORO ROAD, Orange, CA
Built 1991 Load: 32.4 t ADT: 12,000
MARINA HILLS DRIVE
FairOver: EQUESTRIAN UC
100' EAST OF NIGUEL ROAD, Orange, CA
Built 1980 Load: 32.4 t ADT: 12,500
MAGNOLIA AVENUE
FairOver: UP RR
300' S/O ROUTE I-5 FRWY., Orange, CA
Built 1999 Load: 32.4 t ADT: 41,400
BONITA CANYON DR.
FairOver: BONITA CANYON
0.1 MI E/O MACARTHUR BL, Orange, CA
Built 1995 Load: 32.4 t ADT: 17,000
BONITA CANYON DR.
FairOver: WILDLIFE UC
0.2 MI. W/O RTE. 73 FWY., Orange, CA
Built 1995 Load: 32.4 t ADT: 17,000
IRVINE BLVD
FairOver: PETERS CANYON TRAIL UC
0.1 MI. W/O ROUTE 261, Orange, CA
Built 1998 Load: 32.4 t ADT: 26,400
HARBOR BOULEVARD
FairOver: SANTA ANA RIVER CHANNEL
0.2 MI N/O WARNER AVENUE, Orange, CA
Built 1994 Load: 32.4 t ADT: 54,000
Showing 13,201-13,250 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.