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
DORSEY DR
UnknownOver: STATE ROUTE 20
03-NEV-020-R14.26, Nevada, CA
Built 1969 ADT: 36,500
GOLD FLAT ROAD
UnknownOver: STATE ROUTE 20
03-NEV-020-R15.92, Nevada, CA
Built 1967 ADT: 33,500
STATE ROUTE 20
UnknownOver: MILL STREET
03-NEV-020-R12.16-GVY, Nevada, CA
Built 1969 ADT: 7,200
BRIGHTON ST
UnknownOver: STATE ROUTE 20
03-NEV-020-R11.83-GVY, Nevada, CA
Built 1984 ADT: 8,200
SOUTH PONDEROSA WY
UnknownOver: STATE ROUTE 20
03-NEV-020-R10.09, Nevada, CA
Built 1984 ADT: 16,500
STATE ROUTE 267
UnknownOver: GLENSHIRE, RR, TRK RIVER
03-NEV-267-M0.39-TRK, Nevada, CA
Built 2003 ADT: 5,667
INTERSTATE 80 WB
UnknownOver: STATE ROUTE 267
03-NEV-080-16.60-TRK, Nevada, CA
Built 2002 ADT: 10,900
INTERSTATE 80 EB
UnknownOver: STATE ROUTE 267
03-NEV-080-16.60-TRK, Nevada, CA
Built 2002 ADT: 10,900
INTERSTATE 80
UnknownOver: TRUCKEE AIRPORT ROAD
03-NEV-080-18.26, Nevada, CA
Built 2004 ADT: 500
INTERSTATE 5
UnknownOver: BNSF RY,AMTRAK,METROLINK
12-ORA-005-R23.58-IRVN, Orange, CA
Built 1992 ADT: 11,000
BNSF,AMTRAK,METRO
UnknownOver: S1-COAST HIGHWAY OFFRAMP
12-ORA-001-R0.80-DAPT, Orange, CA
Built 1927 ADT: 8,000
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 1
12-ORA-001-6.56-LGNB, Orange, CA
Built 1929 ADT: 36,000
AVENIDA SAN LUIS R
UnknownOver: INTERSTATE 5
12-ORA-005-0.65-SCLE, Orange, CA
Built 1981 ADT: 147,100
STATE ROUTE 57
UnknownOver: CHAPMAN AVE
12-ORA-057-11.24-ORA, Orange, CA
Built 1976 ADT: 20,000
ROUTE 5
UnknownOver: ROUTE 55
12-ORA-005-30.26-TUS, Orange, CA
Built 1955 ADT: 299,000
INTERSTATE 5
UnknownOver: RED HILL AVE
12-ORA-005-R29.10-TUS, Orange, CA
Built 1992 ADT: 25,000
METROLINK/ BNSF RY
UnknownOver: STATE ROUTE 91
12-ORA-091-8.19-ANA, Orange, CA
Built 1967 ADT: 213,000
INTERSTATE 5
UnknownOver: CULVER DR
12-ORA-005-R26.59-IRVN, Orange, CA
Built 1979 ADT: 44,000
INTERSTATE 5
UnknownOver: SAND CANYON AVE
12-ORA-005-R23.94-IRVN, Orange, CA
Built 1992 ADT: 37,000
INTERSTATE 5
UnknownOver: EL CAMINO REAL
12-ORA-005-1.63-SCLE, Orange, CA
Built 1958 ADT: 18,000
INTERSTATE 5
UnknownOver: AVENIDA PRESIDIO
12-ORA-005-2.31-SCLE, Orange, CA
Built 1960 ADT: 5,000
INTERSTATE 5
UnknownOver: AVENIDA PALIZADA
12-ORA-005-2.66-SCLE, Orange, CA
Built 1960 ADT: 5,000
JEFFREY ROAD
UnknownOver: INTERSTATE 5
12-ORA-005-R24.99-IRVN, Orange, CA
Built 1990 ADT: 271,300
STATE ROUTE 91
UnknownOver: ACACIA STREET
12-ORA-091-4.76-ANA, Orange, CA
Built 1959 ADT: 10,000
CAMINO DE ESTRELLA
UnknownOver: INTERSTATE 5
12-ORA-005-5.80-DAPT, Orange, CA
Built 1981 ADT: 205,600
VIA CALIFORNIA
UnknownOver: ROUTE 5
12-ORA-005-6.62-DAPT, Orange, CA
Built 1960 ADT: 267,000
INTERSTATE 5
UnknownOver: N5-N1 CONNECTOR
12-ORA-005-6.69, Orange, CA
Built 1960 ADT: 14,900
INTERSTATE 5
UnknownOver: CAMINO CAPISTRANO ONRAMP
12-ORA-005-7.34-SJCP, Orange, CA
Built 1960 ADT: 17,071
INTERSTATE 5
UnknownOver: EL HORNO STREET
12-ORA-005-10.00-SJCP, Orange, CA
Built 1958 ADT: 3,000
INTERSTATE 5
UnknownOver: JUNIPERO SERRA RD
12-ORA-005-10.91-SJCP, Orange, CA
Built 1958 ADT: 15,000
INTERSTATE 5
UnknownOver: AVERY PARKWAY
12-ORA-005-12.94-MSNV, Orange, CA
Built 1959 ADT: 10,000
INTERSTATE 5
UnknownOver: LA PAZ RD
12-ORA-005-16.53-LGNH, Orange, CA
Built 1959 ADT: 38,000
INTERSTATE 5
UnknownOver: EL TORO ROAD
12-ORA-005-18.69-LGNH, Orange, CA
Built 1969 ADT: 54,000
STATE ROUTE 1
UnknownOver: CAMINO CAPISTRANO
12-ORA-001-R0.40-DAPT, Orange, CA
Built 1960 ADT: 1,000
STATE ROUTE 91
UnknownOver: EAST STREET
12-ORA-091-4.26-ANA, Orange, CA
Built 1959 ADT: 10,000
STATE ROUTE 133 SB
UnknownOver: INTERSTATE 405 & RAMPS
12-ORA-133-8.34-IRVN, Orange, CA
Built 1968 ADT: 258,200
STATE ROUTE 133 NB
UnknownOver: INTERSTATE 405 & RAMPS
12-ORA-133-8.34-IRVN, Orange, CA
Built 1968 ADT: 11,400
LAGUNA CANYON ROAD
UnknownOver: I 405
12-ORA-405-2.20-IRVN, Orange, CA
Built 1968 ADT: 237,000
UNIVERSITY DR
UnknownOver: INTERSTATE 405
12-ORA-405-3.95-IRVN, Orange, CA
Built 1968 ADT: 224,000
CULVER DR
UnknownOver: I 405
12-ORA-405-5.62-IRVN, Orange, CA
Built 1968 ADT: 266,000
JAMBOREE BLVD
UnknownOver: ROUTE 405
12-ORA-405-6.92-IRVN, Orange, CA
Built 1968 ADT: 266,000
STATE ROUTE 55
UnknownOver: INTERSTATE 405
12-ORA-055-R5.99-CMS, Orange, CA
Built 1966 ADT: 186,000
INTERSTATE 405
UnknownOver: HARBOR BLVD
12-ORA-405-11.45-CMS, Orange, CA
Built 1966 ADT: 12,700
INTERSTATE 405
UnknownOver: SANTA ANA RVR/EUCLID ST
12-ORA-405-12.41-CMS, Orange, CA
Built 1966 ADT: 15,000
INTERSTATE 405
UnknownOver: ROUTE 39
12-ORA-405-16.52-HNTB, Orange, CA
Built 1965 ADT: 77,000
STATE ROUTE 91
UnknownOver: EUCLID STREET
12-ORA-091-2.23-ANA, Orange, CA
Built 1958 ADT: 25,000
STATE ROUTE 91
UnknownOver: BROOKHURST STREET
12-ORA-091-1.23-ANA, Orange, CA
Built 1958 ADT: 30,000
STATE ROUTE 91
UnknownOver: GILBERT STREET
12-ORA-091-0.72-FUL, Orange, CA
Built 1958 ADT: 15,000
STATE ROUTE 91 WB
UnknownOver: UP RR, I 5, & CONNS
12-ORA-091-R3.56L-FUL, Orange, CA
Built 1970 ADT: 168,000
W91-N5 HOV CONN
UnknownOver: MAGNOLIA AVE
12-ORA-091-R3.85L-FUL, Orange, CA
Built 1958 ADT: 30,000
Showing 3,501-3,550 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |