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
INTERSTATE 80 EB
FairOver: DONNER LAKE ROAD
03-NEV-080-R9.01R, Nevada, CA
Built 1963 Load: 32.4 t ADT: 27,000
STATE ROUTE 20
FairOver: SLACKS RAVINE
03-NEV-020-0.96, Nevada, CA
Built 2008 Load: 32.4 t ADT: 8,200
STATE ROUTE 20
FairOver: SLACKS RAVINE
03-NEV-020-1.37, Nevada, CA
Built 2008 Load: 32.4 t ADT: 8,200
PLEASANT VALLEY RD
FairOver: SQUIRREL CREEK
0.4 MI NORTH OF ROUTE 20, Nevada, CA
Built 1966 Load: 32.4 t ADT: 10,787
AUBURN ROAD
FairOver: WOLF CREEK
2.15 MI N/O ROUTE 49, Nevada, CA
Built 2004 Load: 32.4 t ADT: 671
FLORISTON WAY
FairOver: TRUCKEE RIVER
JUST E/O I-80, Nevada, CA
Built 2010 Load: 32.4 t ADT: 260
DONNER PASS ROAD
FairOver: TROUT CREEK
EAST OF SCHOOL STREET, Nevada, CA
Built 2006 Load: 32.4 t ADT: 9,000
STATE ROUTE 1
FairOver: SANTA ANA RIVER
12-ORA-001-21.55-HNTB, Orange, CA
Built 1992 Load: 32.4 t ADT: 32,000
STATE ROUTE 1
FairOver: ANAHEIM BAY
12-ORA-001-31.75-SLB, Orange, CA
Built 1967 Load: 32.4 t ADT: 41,000
S1-COAST HIWAY OFF
FairOver: SAN JUAN CREEK
12-ORA-001-R1.00-DAPT, Orange, CA
Built 1927 Load: 32.4 t ADT: 8,000
STATE ROUTE 74
FairOver: SAN JUAN CREEK
12-ORA-074-10.44-SJCP, Orange, CA
Built 1987 Load: 32.4 t ADT: 9,800
STATE ROUTE 74
FairOver: HOT SPRINGS CANYON
12-ORA-074-12.34-SJCP, Orange, CA
Built 1991 Load: 32.4 t ADT: 9,800
SR 39 (BEACH BLVD)
FairOver: BREA CREEK CHANNEL
12-ORA-039-15.83-BPK, Orange, CA
Built 1925 Load: 32.4 t ADT: 57,500
SR 90 (IMPERIAL)
FairOver: IMPERIAL CHANNEL
12-ORA-090-1.23-LHB, Orange, CA
Built 1968 Load: 32.4 t ADT: 47,000
SR 90 (IMPERIAL)
FairOver: BREA CANYON CREEK
12-ORA-090-4.07-BRE, Orange, CA
Built 1959 Load: 32.4 t ADT: 47,500
STATE ROUTE 91
FairOver: SANTA ANA RIVER
12-ORA-091-8.57-ANA, Orange, CA
Built 1954 Load: 32.4 t ADT: 213,000
SR 39 (BEACH BLVD)
FairOver: COYOTE CREEK CHANNEL
12-ORA-039-19.23-LHB, Orange, CA
Built 1962 Load: 32.4 t ADT: 40,000
SR 90 (IMPERIAL)
FairOver: LOFTUS DIVERSION CHANNEL
12-ORA-090-5.63-BRE, Orange, CA
Built 1970 Load: 32.4 t ADT: 44,500
INTERSTATE 5
FairOver: AVENIDA VAQUERO
12-ORA-005-4.97-SCLE, Orange, CA
Built 1981 Load: 32.4 t ADT: 242,200
INTERSTATE 405
FairOver: UP RR
12-ORA-405-17.21-WTM, Orange, CA
Built 1965 Load: 32.4 t ADT: 256,000
SR 39 (BEACH BLVD)
FairOver: E GARDEN GROVE CHANNEL
12-ORA-039-5.13-HNTB, Orange, CA
Built 1961 Load: 32.4 t ADT: 72,000
SR 39 (BEACH BLVD)
FairOver: WESTMINSTER STORM DRAIN
12-ORA-039-7.14-WTM, Orange, CA
Built 1954 Load: 32.4 t ADT: 59,000
INTERSTATE 405
FairOver: SAN DIEGO CREEK CHANNEL
12-ORA-405-6.41-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 266,000
S133-N405 CONN
FairOver: SAN DIEGO CREEK
12-ORA-133-8.59-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 13,270
ROUTE 133 SB
FairOver: SAN DIEGO CREEK
12-ORA-133-8.59-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 20,000
ROUTE 133 NB
FairOver: SAN DIEGO CREEK
12-ORA-133-8.59-IRVN, Orange, CA
Built 1958 Load: 32.4 t ADT: 20,000
STATE ROUTE 91
FairOver: COYOTE CREEK
12-ORA-091-R0.10-LPMA, Orange, CA
Built 1969 Load: 32.4 t ADT: 235,500
SR 39 (BEACH BLVD)
FairOver: ANAHEIM FLOOD CONTROL CH
12-ORA-039-9.37-STT, Orange, CA
Built 1958 Load: 32.4 t ADT: 52,000
INTERSTATE 405
FairOver: BOLSA CHICA DITCH
12-ORA-405-20.77-SLB, Orange, CA
Built 1959 Load: 32.4 t ADT: 374,000
STATE ROUTE 57
FairOver: SANTA ANA RIVER
12-ORA-057-11.96-ORA, Orange, CA
Built 1976 Load: 32.4 t ADT: 229,000
INTERSTATE 405
FairOver: LOS ALAMITOS CHANNEL
12-ORA-405-24.10-SLB, Orange, CA
Built 1965 Load: 32.4 t ADT: 255,000
INTERSTATE 405
FairOver: ANAHEIM-BARBER CITY CH
12-ORA-405-19.45-WTM, Orange, CA
Built 1965 Load: 32.4 t ADT: 256,000
SR 55
FairOver: GREEN FIELD STORM CHANNL
12-ORA-055-R6.10-CMS, Orange, CA
Built 1966 Load: 32.4 t ADT: 222,000
W MACAR-N55 ON-RMP
FairOver: MACAR STORM CHANNEL
12-ORA-055-R7.04-SA, Orange, CA
Built 1966 Load: 32.4 t ADT: 18,200
S55-MACAR OFF RAMP
FairOver: MACARTHUR STRM CHANNEL
12-ORA-055-R7.14-SA, Orange, CA
Built 1966 Load: 32.4 t ADT: 19,200
DYER RD-S55 ON RAM
FairOver: DYER ROAD STORM CHANNEL
12-ORA-055-R7.67-SA, Orange, CA
Built 1966 Load: 32.4 t ADT: 12,700
S55-DYER RD OFF RP
FairOver: DYER ROAD STORM CHANNEL
12-ORA-055-R7.75-SA, Orange, CA
Built 1966 Load: 32.4 t ADT: 7,600
STATE ROUTE 57
FairOver: LOFTUS DIVERSION CH
12-ORA-057-19.66-FUL, Orange, CA
Built 1970 Load: 32.4 t ADT: 245,000
STATE ROUTE 1
FairOver: N ARM NEWPORT BAY
12-ORA-001-R18.22-NPTB, Orange, CA
Built 1981 Load: 32.4 t ADT: 51,000
STATE ROUTE 1
FairOver: TALBERT CHANNEL
12-ORA-001-21.82-HNTB, Orange, CA
Built 1991 Load: 32.4 t ADT: 39,000
BARRANCA PKWY HOV
FairOver: INTERSTATE 5
12-ORA-005-22.81-IRVN, Orange, CA
Built 1991 Load: 32.4 t ADT: 2,354
STATE ROUTE 241
FairOver: TRABUCO CREEK
12-ORA-241-18.70-RSM, Orange, CA
Built 1995 Load: 32.4 t ADT: 9,150
STATE ROUTE 241
FairOver: TRABUCO CREEK
12-ORA-241-18.70-RSM, Orange, CA
Built 1995 Load: 32.4 t ADT: 9,150
STATE ROUTE 241
FairOver: UPPER OSO RESERVOIR
12-ORA-241-20.40-MSNV, Orange, CA
Built 1995 Load: 32.4 t ADT: 21,000
STATE ROUTE 241
FairOver: UPPER OSO RESERVOIR
12-ORA-241-20.40-MSNV, Orange, CA
Built 1995 Load: 32.4 t ADT: 21,000
SR 241 NB
FairOver: TOWNE CENTRE DR
12-ORA-241-23.62-LKFR, Orange, CA
Built 1993 Load: 32.4 t ADT: 21,500
SR 241 SB
FairOver: EQUESTRIAN TRAIL
12-ORA-241-22.39-LKFR, Orange, CA
Built 1993 Load: 32.4 t ADT: 36,000
SR 241 NB
FairOver: WILDLIFE UC
12-ORA-241-36.70-ANA, Orange, CA
Built 1998 Load: 32.4 t ADT: 22,500
S73-UNIVERSITY OFF
FairOver: SAN DIEGO CREEK
12-ORA-073-24.36-NPTB, Orange, CA
Built 1996 Load: 32.4 t ADT: 5,700
SR 133 SB
FairOver: BNSF RY,AMTRAK,METROLINK
12-ORA-133-9.77-IRVN, Orange, CA
Built 1998 Load: 32.4 t ADT: 35,000
Showing 13,101-13,150 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.