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
57 SB ON RAMP
GoodOver: BREA CANYON CHANNEL
12-ORA-057-22.30, Orange, CA
Built 1971 Load: 32.4 t ADT: 2,260
STATE ROUTE 91
GoodOver: ROADSIDE DITCH DRAIN 'A'
12-ORA-091-R10.50-ANA, Orange, CA
Built 1970 Load: 32.4 t ADT: 300,000
STATE ROUTE 91
GoodOver: ROADSIDE DRAIN 'B'
12-ORA-091-R11.79-ANA, Orange, CA
Built 1970 Load: 32.4 t ADT: 192,000
STATE ROUTE 91
GoodOver: ROADSIDE DRAIN 'C'
12-ORA-091-R12.20-ANA, Orange, CA
Built 1970 Load: 32.4 t ADT: 152,000
STATE ROUTE 91
GoodOver: GYPSUM CANYON CREEK
12-ORA-091-R16.46-ANA, Orange, CA
Built 1971 Load: 32.4 t ADT: 290,000
STATE ROUTE 91
GoodOver: COAL CANYON CREEK
12-ORA-091-R17.92R-ANA, Orange, CA
Built 1971 Load: 32.4 t ADT: 145,000
RTE 57 & CHAPMAN
GoodOver: BITTERBUSH CHANNEL
12-ORA-057-11.20-ORA, Orange, CA
Built 1976 Load: 32.4 t ADT: 229,000
INTERSTATE 5
GoodOver: EL MODENA-IRVINE CHANNEL
12-ORA-005-27.82-TUS, Orange, CA
Built 1992 Load: 32.4 t ADT: 300,000
INTERSTATE 5
GoodOver: PETERS CANYON
12-ORA-005-R27.25-IRVN, Orange, CA
Built 1992 Load: 32.4 t ADT: 279,000
BRDWY NB OFF-RP
GoodOver: PARKING LOT
12-ORA-005-33.29-SA, Orange, CA
Built 1996 Load: 32.4 t ADT: 7,800
ALTON PKWY-N241 ON
GoodOver: TOWNE CENTRE DR
12-ORA-241-23.62-LKFR, Orange, CA
Built 1993 Load: 32.4 t ADT: 2,610
STATE ROUTE 241
GoodOver: AQUA CHINON WASH
12-ORA-241-24.67-IRVN, Orange, CA
Built 1993 Load: 32.4 t ADT: 43,000
SR 241
GoodOver: Tijeras Creek
12-ORA-241-17.40-RSM, Orange, CA
Built 1998 Load: 32.4 t ADT: 1,000
SR 241
GoodOver: Tijeras Creek
12-ORA-241-17.40-RSM, Orange, CA
Built 1998 Load: 32.4 t ADT: 4,050
SR 241
GoodOver: Tijeras Creek
12-ORA-241-17.40-RSM, Orange, CA
Built 1998 Load: 32.4 t ADT: 4,050
S73-MACARTHUR OFF
GoodOver: BONITA CREEK
12-ORA-073-23.78-IRVN, Orange, CA
Built 1996 Load: 32.4 t ADT: 6,270
INTERSTATE 5
GoodOver: TUSTIN CHANNEL
12-ORA-005-30.60-TUS, Orange, CA
Built 1995 Load: 32.4 t ADT: 300,000
SR 73 SB
GoodOver: ALISO CREEK
12-ORA-073-13.82-LGNG, Orange, CA
Built 1996 Load: 32.4 t ADT: 25,000
SR 73 NB
GoodOver: ALISO CREEK
12-ORA-073-13.82-LGNG, Orange, CA
Built 1996 Load: 32.4 t ADT: 25,000
SR 73 SB
GoodOver: SAND CANYON AVE (FUTURE)
12-ORA-073-19.50-LGNB, Orange, CA
Built 1996 Load: 32.4 t ADT: 34,500
SR 73 NB
GoodOver: SAND CANYON AVE (FUTURE)
12-ORA-073-19.50-LGNB, Orange, CA
Built 1996 Load: 32.4 t ADT: 34,500
N133-S241 CONNECTR
GoodOver: SANTIAGO AQUEDUCT
12-ORA-133-12.38, Orange, CA
Built 1998 Load: 32.4 t ADT: 14,288
SR 241 NB
GoodOver: WILDLIFE UC
12-ORA-241-35.60-ANA, Orange, CA
Built 1998 Load: 32.4 t ADT: 20,500
SR 241 NB
GoodOver: SANTIAGO CREEK
12-ORA-241-33.70-RSM, Orange, CA
Built 1998 Load: 32.4 t ADT: 20,500
KATELLA-N5 ON-RAMP
GoodOver: DISNEY WAY
12-ORA-005-36.44-ANA, Orange, CA
Built 2000 Load: 32.4 t ADT: 5,668
STATE ROUTE 74
GoodOver: SAN JUAN CREEK
12-ORA-074-R2.28-SJCP, Orange, CA
Built 1995 Load: 32.4 t ADT: 5,500
SR 73 NB
GoodOver: WILDLIFE PATHWAY
12-ORA-073-20.86-LGNB, Orange, CA
Built 1996 Load: 32.4 t ADT: 34,500
SR 241
GoodOver: HAUL ROAD
12-ORA-241-28.70-RSM, Orange, CA
Built 1997 Load: 32.4 t ADT: 36,000
ROUTE 261 SB
GoodOver: UTILITY ROAD
12-ORA-261-4.38-TUS, Orange, CA
Built 1998 Load: 32.4 t ADT: 14,500
ROUTE 261 NB
GoodOver: UTILITY ROAD
12-ORA-261-4.38-TUS, Orange, CA
Built 1998 Load: 32.4 t ADT: 14,500
INTERSTATE 5
GoodOver: CARBON CREEK
12-ORA-005-40.20-ANA, Orange, CA
Built 2002 Load: 32.4 t ADT: 259,800
SR241
GoodOver: WILDLIFE CROSSING
12-ORA-241-27.05-IRVN, Orange, CA
Built 1998 Load: 32.4 t ADT: 48,000
STATE ROUTE 133 SB
GoodOver: LAGUNA LAKES TRAIL
12-ORA-133-R5.62, Orange, CA
Built 2008 Load: 32.4 t ADT: 20,700
STATE ROUTE 133 NB
GoodOver: LAGUNA LAKES TRAIL
12-ORA-133-R5.60, Orange, CA
Built 2008 Load: 32.4 t ADT: 20,700
STATE ROUTE 133 SB
GoodOver: STAGE COACH TRAIL
12-ORA-133-R6.16, Orange, CA
Built 2008 Load: 32.4 t ADT: 20,700
STATE ROUTE 133 NB
GoodOver: STAGE COACH TRAIL
12-ORA-133-R6.16, Orange, CA
Built 2008 Load: 32.4 t ADT: 20,700
N405-BRISTOL OFFRP
GoodOver: AIRPORT CHANNEL
12-ORA-405-8.96-CMS, Orange, CA
Built 2002 Load: 32.4 t ADT: 10,000
I 5 SB
GoodOver: SANTIAGO CREEK
12-ORA-005-33.39-SA, Orange, CA
Built 1996 Load: 32.4 t ADT: 183,000
I 5 NB
GoodOver: SANTIAGO CREEK
12-ORA-005-33.39-SA, Orange, CA
Built 1996 Load: 32.4 t ADT: 183,000
STATE ROUTE 133 SB
GoodOver: LAGUNA CANYON CREEK
12-ORA-133-M4.29, Orange, CA
Built 2008 Load: 32.4 t ADT: 28,500
STATE ROUTE 133 NB
GoodOver: LAGUNA CANYON CREEK
12-ORA-133-M4.31, Orange, CA
Built 2008 Load: 32.4 t ADT: 28,500
STATE ROUTE 1
GoodOver: TIDAL INLET CHANNEL
12-ORA-001-27.31, Orange, CA
Built 2006 Load: 32.4 t ADT: 36,000
INTERSTATE 5 SB
GoodOver: FULLERTON CREEK
12-ORA-005-42.98, Orange, CA
Built 2010 Load: 32.4 t ADT: 95,850
STATE ROUTE 74 WB
GoodOver: HILLSIDE
12-ORA-074-14.96, Orange, CA
Built 2010 Load: 32.4 t ADT: 9,800
STATE ROUTE 74 EB
GoodOver: HILLSIDE
12-ORA-074-14.97, Orange, CA
Built 2010 Load: 32.4 t ADT: 9,800
STATE ROUTE 74 WB
GoodOver: HILLSIDE
12-ORA-074-15.75, Orange, CA
Built 2008 Load: 32.4 t ADT: 9,800
INTERSTATE 5
GoodOver: AVENIDA PICO
12-ORA-005-3.39-SCLE, Orange, CA
Built 2017 Load: 32.4 t ADT: 200,100
EL CAMINO REAL
GoodOver: PRIMA DESHECHA CANADA
100' E/O CAMINO CAPISTRAN, Orange, CA
Built 1928 Load: 32.4 t ADT: 16,000
BAKER STREET
GoodOver: SANTA ANA DELHI CHANNEL
0.2 MI. E/O BRISTOL ST., Orange, CA
Built 1981 Load: 32.4 t ADT: 27,000
CALIFORNIA STREET
GoodOver: GREENVILLE-BANNING CHNL
150' N/O IOWA STREET, Orange, CA
Built 1963 Load: 32.4 t ADT: 300
Showing 21,551-21,600 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 |