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 168 EB
GoodOver: HERNDON AVE
06-FRE-168S-R6.87-CLO, Fresno, CA
Built 2001 Load: 32.4 t ADT: 15,000
STATE ROUTE 168 EB
GoodOver: CLOVIS AVE
06-FRE-168S-R7.13-CLO, Fresno, CA
Built 2001 Load: 32.4 t ADT: 15,000
STATE ROUTE 168 EB
GoodOver: TEMPERANCE AVE
06-FRE-168S-R9.15, Fresno, CA
Built 2001 Load: 32.4 t ADT: 12,500
STATE ROUTE 180
GoodOver: TEILMAN AVENUE
06-FRE-180-R55.85-FRE, Fresno, CA
Built 2003 Load: 32.4 t ADT: 8,000
STATE ROUTE 168
GoodOver: ENTERPRISE CANAL
06-FRE-168S-R9.20-CLO, Fresno, CA
Built 2001 Load: 32.4 t ADT: 25,000
STATE ROUTE 33
GoodOver: WARTHAN CREEK
06-FRE-033-14.88-CLNG, Fresno, CA
Built 2001 Load: 32.4 t ADT: 8,800
STATE ROUTE 180 WB
GoodOver: ARMSTRONG AVE
06-FRE-180-R64.47-FRE, Fresno, CA
Built 2009 Load: 32.4 t ADT: 13,250
STATE ROUTE 180 EB
GoodOver: ARMSTRONG AVE
06-FRE-180-R64.49-FRE, Fresno, CA
Built 2009 Load: 32.4 t ADT: 13,250
STATE ROUTE 180
GoodOver: SIDEHILL VIADUCT
06-FRE-180-124.40, Fresno, CA
Built 2005 Load: 32.4 t ADT: 730
STATE ROUTE 180 WB
GoodOver: MARKS AVE
06-FRE-180-R54.60-FRE, Fresno, CA
Built 2008 Load: 32.4 t ADT: 5,200
STATE ROUTE 180 EB
GoodOver: MARKS AVE
06-FRE-180-R54.60-FRE, Fresno, CA
Built 2008 Load: 32.4 t ADT: 5,200
STATE ROUTE 180
GoodOver: CAMERON SLOUGH
06-FRE-180-R77.00, Fresno, CA
Built 2020 Load: 32.4 t ADT: 7,700
STATE ROUT 180
GoodOver: CAMERON SLOUGH
06-FRE-180-R77.00, Fresno, CA
Built 2020 Load: 32.4 t ADT: 4,425
STATE ROUTE 180
GoodOver: BYRD SLOUGH
06-FRE-180-77.20, Fresno, CA
Built 2020 Load: 32.4 t ADT: 8,850
STATE ROUTE 180
GoodOver: BYRD SLOUGH
06-FRE-180-R77.19, Fresno, CA
Built 2020 Load: 32.4 t ADT: 7,700
STATE ROUTE 180
GoodOver: BYRD SLOUGH
06-FRE-180-R77.19, Fresno, CA
Built 2020 Load: 32.4 t ADT: 4,425
STATE ROUTE 180
GoodOver: WAHTOKE CREEK
06-FRE-180-81.90, Fresno, CA
Built 2011 Load: 32.4 t ADT: 4,375
STATE ROUTE 180
GoodOver: FOWLER SWITCH CANAL
06-FRE-180-R73.10, Fresno, CA
Built 2015 Load: 32.4 t ADT: 8,250
STATE ROUTE 180
GoodOver: LONE TREE CANAL
06-FRE-180-R73.70, Fresno, CA
Built 2015 Load: 32.4 t ADT: 4,125
STATE ROUTE 33
GoodOver: JACALITOS CREEK
06-FRE-033-11.00, Fresno, CA
Built 2016 Load: 32.4 t ADT: 4,350
STATE ROUTE 180 WB
GoodOver: CHINA SLOUGH
06-FRE-180-R75.30, Fresno, CA
Built 2020 Load: 32.4 t ADT: 7,200
STATE ROUTE 180 EB
GoodOver: CHINA SLOUGH
06-FRE-180-R75.30, Fresno, CA
Built 2020 Load: 32.4 t ADT: 4,425
CLINTON AVE
GoodOver: NB 99 ONRAMP, RR TRACKS
06-FRE-099-24.38-FRE, Fresno, CA
Built 2018 Load: 32.4 t ADT: 15,275
STATE ROUTE 269
GoodOver: EQUIPMENT ROAD
06-FRE-269-11.10, Fresno, CA
Built 2019 Load: 32.4 t ADT: 4,500
STATE ROUTE 269
GoodOver: ARROYO PASAJERO CREEK
06-FRE-269-11.23, Fresno, CA
Built 2019 Load: 32.4 t ADT: 4,500
STATE ROUTE 269
GoodOver: HURON DIKE
06-FRE-269-12.21, Fresno, CA
Built 2019 Load: 32.4 t ADT: 4,500
INTERSTATE 5 SB
GoodOver: TUMEY GULCH
06-FRE-005-44.93, Fresno, CA
Built 2023 Load: 32.4 t ADT: 16,500
INTERSTATE 5 SB
GoodOver: TUMEY GULCH
06-FRE-005-44.93, Fresno, CA
Built 2023 Load: 32.4 t ADT: 16,500
STATE ROUTE 180
GoodOver: FUTURE RAIL TRACKS CHSRA
06-FRE-180-R56.77, Fresno, CA
Built 2020 Load: 32.4 t ADT: 108,000
NORTH H ST
GoodOver: DRY CREEK CANAL
SOUTH OF PALM AVE, Fresno, CA
Built 1974 Load: 32.4 t ADT: 12,056
E BELMONT AVE
GoodOver: DRY CREEK CANAL
EAST OF BROADWAY, Fresno, CA
Built 1989 Load: 32.4 t ADT: 15,700
N FRIANT ROAD NB
GoodOver: LITTLE DRY CREEK
1.0 MI NORTH OF WILLOW AV, Fresno, CA
Built 2007 Load: 32.4 t ADT: 9,200
E MANNING AVE
GoodOver: KINGSBURG BRANCH CANAL
0.7 MI EAST OF BETHEL AVE, Fresno, CA
Built 1981 Load: 32.4 t ADT: 8,300
N WEST AVE
GoodOver: HERNDON CANAL
NORTH OF ASHLAN AVE, Fresno, CA
Built 1963 Load: 32.4 t ADT: 16,183
S ACADEMY AVE
GoodOver: KINGSBURG BRANCH CANAL
AT DINUBA AVE, Fresno, CA
Built 1978 Load: 32.4 t ADT: 2,300
AUBERRY RD
GoodOver: LITTLE SANDY CREEK
1.6 MI N/O S H 168, Fresno, CA
Built 1975 Load: 32.4 t ADT: 3,400
AUBERRY ROAD
GoodOver: LITTLE DRY CREEK
5.38 MI N COPPER AVE, Fresno, CA
Built 1925 Load: 32.4 t ADT: 5,000
MILLERTON ROAD
GoodOver: NORTH FORK LITTLE DRY CR
0.8 MI E OF AUBERRY RD, Fresno, CA
Built 1925 Load: 32.4 t ADT: 600
LOS GATOS ROAD
GoodOver: LOS GATOS CREEK
14.97 MI W OF DERRICK BL, Fresno, CA
Built 1990 Load: 32.4 t ADT: 100
ISLAND AVE
GoodOver: TEMPLE SANTA RITA CANAL
1.8 MI SOUTH OF SR 152, Fresno, CA
Built 1985 Load: 32.4 t ADT: 1,300
E NEES AVE
GoodOver: ENTERPRISE CANAL
0.2 MI W/O TEMPERANCE, Fresno, CA
Built 1982 Load: 32.4 t ADT: 3,100
W NORTH AVE
GoodOver: DRY CREEK CANAL
1.3 MI E/O CHATEAU FRESNO, Fresno, CA
Built 1975 Load: 32.4 t ADT: 310
S SMITH AVE
GoodOver: SMITH-FERRY CANAL
0.5 MI S OF ADAMS AVE, Fresno, CA
Built 1975 Load: 32.4 t ADT: 400
S ACADEMY AVE
GoodOver: KINGSBURG BRANCH CANAL
0.5 MI N OF E DINUBA AVE, Fresno, CA
Built 1975 Load: 32.4 t ADT: 2,000
N. CLOVIS AVE
GoodOver: DRY CREEK CANAL
SOUTH OF ALLUVIAL AVE, Fresno, CA
Built 1991 Load: 32.4 t ADT: 14,100
AUBERRY ROAD
GoodOver: BIG DRY CREEK DIVERSION
2.2 MI N OF COPPER RD, Fresno, CA
Built 1993 Load: 32.4 t ADT: 5,200
N. FOWLER AVE
GoodOver: GOULD CANAL
0.2 MI S. OF ASHLAN AVE, Fresno, CA
Built 1998 Load: 32.4 t ADT: 10,800
S HOWARD AVE
GoodOver: DRY CREEK CANAL
0.1 MI SOUTH OF CENTRAL, Fresno, CA
Built 1987 Load: 32.4 t ADT: 200
N ARMSTRONG AVE
GoodOver: MILL DITCH
0.4 MI NORTH OF OLIVE AVE, Fresno, CA
Built 1996 Load: 32.4 t ADT: 1,800
TRIMMER SPRINGS RD
GoodOver: OVERFLOW CHANNEL
1.4 MI EAST OF BELMONT AV, Fresno, CA
Built 1999 Load: 32.4 t ADT: 1,800
Showing 20,301-20,350 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.