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
STATE ROUTE 99
FairOver: FOWLER SWITCH CANAL
06-FRE-099-7.83-SEL, Fresno, CA
Built 1962 Load: 32.4 t ADT: 78,000
STATE ROUTE 99
FairOver: HERNDON CANAL
06-FRE-099-28.40-FRE, Fresno, CA
Built 1960 Load: 32.4 t ADT: 32,500
STATE ROUTE 33, RR
FairOver: DELTA-MENDOTA CANAL
06-FRE-033-R67.96, Fresno, CA
Built 1951 Load: 32.4 t ADT: 7,550
STATE ROUTE 41 NB
FairOver: NORTH AVENUE
06-FRE-041-R18.61, Fresno, CA
Built 1997 Load: 32.4 t ADT: 13,500
STATE ROUTE 41 NB
FairOver: CHURCH AVENUE
06-FRE-041-R21.60-FRE, Fresno, CA
Built 1997 Load: 32.4 t ADT: 17,250
N41-MCKINLEY OFFRP
FairOver: MCKINLEY AVENUE
06-FRE-041-R25.27-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 7,500
STATE ROUTE 41 SB
FairOver: FRESNO STREET
06-FRE-041-R25.60-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 55,500
STATE ROUTE 41 NB
FairOver: FRESNO STREET
06-FRE-041-R25.60-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 55,500
STATE ROUTE 41 SB
FairOver: CLINTON AVE
06-FRE-041-R25.95-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 55,500
STATE ROUTE 41 NB
FairOver: CLINTON AVE
06-FRE-041-R25.95-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 55,500
STATE ROUTE 41 NB
FairOver: PRINCETON AVE
06-FRE-041-R26.20-FRE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 55,500
STATE ROUTE 180 WB
FairOver: BNSF RY & AMTRAK
06-FRE-180-R58.04-FRE, Fresno, CA
Built 1980 Load: 32.4 t ADT: 49,500
STATE ROUTE 145
FairOver: JAMES BYPASS
06-FRE-145-22.57, Fresno, CA
Built 1954 Load: 32.4 t ADT: 4,600
STATE ROUTE 145
FairOver: JAMES BYPASS
06-FRE-145-22.70, Fresno, CA
Built 1954 Load: 32.4 t ADT: 4,600
STATE ROUTE 41
FairOver: DRY CREEK CANAL
06-FRE-041-R25.26-FRE, Fresno, CA
Built 1980 Load: 32.4 t ADT: 111,000
STATE ROUTE 41 SB
FairOver: NEES AVE
06-FRE-041-R31.45-FRE, Fresno, CA
Built 1989 Load: 32.4 t ADT: 54,500
STATE ROUTE 41 NB
FairOver: EL PASO AVENUE
06-FRE-041-R31.20-FRE, Fresno, CA
Built 1989 Load: 32.4 t ADT: 54,500
SR 168
FairOver: BIG SANDY CREEK
06-FRE-168-T32.87, Fresno, CA
Built 1970 Load: 32.4 t ADT: 6,600
STATE ROUTE 168 WB
FairOver: CLOVIS AVE
06-FRE-168S-R7.13-CLO, Fresno, CA
Built 2001 Load: 32.4 t ADT: 15,000
STATE ROUTE 180
FairOver: HILLSIDE
06-FRE-180-126.14, Fresno, CA
Built 1995 Load: 32.4 t ADT: 730
INTERSTATE 5 SB
FairOver: ARROYO PASAJERO
06-FRE-005-7.96, Fresno, CA
Built 1995 Load: 32.4 t ADT: 15,000
INTERSTATE 5 NB
FairOver: ARROYO PASAJERO
06-FRE-005-7.96, Fresno, CA
Built 1995 Load: 32.4 t ADT: 15,000
STATE ROUTE 180
FairOver: TEILMAN AVENUE
06-FRE-180-R55.85-FRE, Fresno, CA
Built 2003 Load: 32.4 t ADT: 8,000
STATE ROUTE 180
FairOver: DRY CREEK CANAL
06-FRE-180-R56.10-FRE, Fresno, CA
Built 2003 Load: 32.4 t ADT: 16,000
STATE ROUTE 180 WB
FairOver: FANCHER CREEK CANAL
06-FRE-180-R64.89-FRE, Fresno, CA
Built 2009 Load: 32.4 t ADT: 13,250
STATE ROUTE 180 EB
FairOver: FANCHER CREEK CANAL
06-FRE-180-R64.89-FRE, Fresno, CA
Built 2009 Load: 32.4 t ADT: 13,250
STATE ROUTE 33
FairOver: LOS GATOS CREEK
06-FRE-033-17.76, Fresno, CA
Built 2001 Load: 32.4 t ADT: 4,500
STATE ROUTE 180
FairOver: LONE TREE CANAL
06-FRE-180-R73.70, Fresno, CA
Built 2015 Load: 32.4 t ADT: 4,125
PIEDRA RD
FairOver: ALTA MAIN CANAL
1.71 MI S WELDON AVE, Fresno, CA
Built 1965 Load: 32.4 t ADT: 1,700
PARK BLVD
FairOver: FRIANT-KERN CANAL
WEST OF HILLS VALLEY RD, Fresno, CA
Built 1948 Load: 32.4 t ADT: 6,000
N TEMPERANCE AVE
FairOver: MILL DITCH
0.3 MI SOUTH OF CLINTON, Fresno, CA
Built 1948 Load: 32.4 t ADT: 3,200
N BRAWLEY AVE
FairOver: HERNDON CANAL
SOUTH OF SHAW AVE, Fresno, CA
Built 1925 Load: 32.4 t ADT: 13,654
E. HERNDON AVE
FairOver: DRY CREEK CANAL
0.15 MI E/O VILLA AVE, Fresno, CA
Built 1978 Load: 32.4 t ADT: 30,600
W SHAW AVE
FairOver: HERNDON CANAL
0.05 MI WEST OF BRAWLEY, Fresno, CA
Built 1951 Load: 32.4 t ADT: 42,995
E SHAW AVE
FairOver: ENTERPRISE CANAL
2.5 MI EAST OF MCCALL AVE, Fresno, CA
Built 1980 Load: 32.4 t ADT: 7,000
S BETHEL AVE
FairOver: FOWLER SWITCH CANAL
0.2 MI N OF JENSEN AVE, Fresno, CA
Built 1985 Load: 32.4 t ADT: 5,955
LODGE RD
FairOver: BIG SANDY CREEK
0.5 MI S/O SH 168, Fresno, CA
Built 1973 Load: 32.4 t ADT: 1,700
LITTLE PANOCHE RD
FairOver: SO FK LITTLE PANOCHE CRK
12 MI WEST OF I-5, Fresno, CA
Built 1985 Load: 32.4 t ADT: 230
LITTLE PANOCHE RD
FairOver: LITTLE PANOCHE CREEK
12 MI WEST OF I-5, Fresno, CA
Built 1935 Load: 32.4 t ADT: 230
13TH ST
FairOver: SAN JOAQUIN RIVER
0.2 MI EAST OF SR 33, Fresno, CA
Built 2001 Load: 32.4 t ADT: 5,845
S FOWLER AVE
FairOver: GRANT CANAL
0.2 MI S/O MT WHITNEY AVE, Fresno, CA
Built 1980 Load: 32.4 t ADT: 4,775
N MCCALL AVE
FairOver: ENTERPRISE CANAL
0.75 MI NORTH OF SHAW AVE, Fresno, CA
Built 1980 Load: 32.4 t ADT: 3,300
W ASHLAN AVE
FairOver: HERNDON CANAL
EAST OF WEST AVE, Fresno, CA
Built 1967 Load: 32.4 t ADT: 24,979
N MARKS AVE
FairOver: HERNDON CANAL
0.5 MI NORTH OF ASHLAN, Fresno, CA
Built 1979 Load: 32.4 t ADT: 22,808
N MAROA AVE
FairOver: HERNDON CANAL
0.25 MI NORTH OF SHIELDS, Fresno, CA
Built 1963 Load: 32.4 t ADT: 8,528
E. CLINTON AVE
FairOver: HERNDON CANAL
WEST OF MILLBROOK AVE, Fresno, CA
Built 1964 Load: 32.4 t ADT: 22,100
TOLLHOUSE RD
FairOver: DRY CREEK
1.7 MI N PITTMAN HILL RD, Fresno, CA
Built 1991 Load: 32.4 t ADT: 1,600
S NEWMARK AVE
FairOver: C & K CANAL
AT (E/O) RAINBOW AVE, Fresno, CA
Built 1977 Load: 32.4 t ADT: 3,400
N MINNEWAWA AVE
FairOver: ENTERPRISE CANAL
0.7 MI S OF COPPER AVE, Fresno, CA
Built 1976 Load: 32.4 t ADT: 5,800
E MANNING AVE
FairOver: SELMA BRANCH C & K CANAL
0.4 MI W OF BETHEL AVE, Fresno, CA
Built 1981 Load: 32.4 t ADT: 8,200
Showing 12,451-12,500 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.