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 22 EB
GoodOver: ANAHEIM-BARBER CITY CHAN
12-ORA-022-R2.37-WTM, Orange, CA
Built 1958 Load: 32.4 t ADT: 105,000
INTERSTATE 5 NB
GoodOver: FULLERTON CREEK
12-ORA-005-42.96-BPK, Orange, CA
Built 1957 Load: 32.4 t ADT: 95,850
STATE ROUTE 1
GoodOver: VICTORIA DRIVE
12-ORA-001-7.40-LGNB, Orange, CA
Built 1935 Load: 32.4 t ADT: 36,000
INTERSTATE 5
GoodOver: MYFORD CREEK
12-ORA-005-27.42-IRVN, Orange, CA
Built 1958 Load: 32.4 t ADT: 279,000
SR 55
GoodOver: SANTA ANA DELHI CHANNEL
12-ORA-055-R4.77-CMS, Orange, CA
Built 1973 Load: 32.4 t ADT: 142,000
STATE ROUTE 91
GoodOver: CARBON DITCH
12-ORA-091-4.28-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 265,000
INTERSTATE 5
GoodOver: OSO CREEK
12-ORA-005-14.79-MSNV, Orange, CA
Built 1959 Load: 32.4 t ADT: 300,000
INTERSTATE 405
GoodOver: SERVICE ROAD
12-ORA-405-12.40-CMS, Orange, CA
Built 1966 Load: 32.4 t ADT: 300,000
INTERSTATE 405
GoodOver: NAVY RR SPUR
12-ORA-405-18.36-WTM, Orange, CA
Built 1965 Load: 32.4 t ADT: 256,000
STATE ROUTE 1
GoodOver: IRVINE COVE DR
12-ORA-001-11.35-LGNB, Orange, CA
Built 1956 Load: 32.4 t ADT: 31,000
INTERSTATE 5
GoodOver: SERRANO CREEK
12-ORA-005-20.97-IRVN, Orange, CA
Built 1958 Load: 32.4 t ADT: 297,000
INTERSTATE 5
GoodOver: TRABUCO CREEK
12-ORA-005-11.45-SJCP, Orange, CA
Built 1959 Load: 32.4 t ADT: 316,000
STATE ROUTE 22
GoodOver: LOS ALAMITOS CHANNEL
12-ORA-022-0.15-SLB, Orange, CA
Built 1958 Load: 32.4 t ADT: 90,000
W91 ON RAMP
GoodOver: HOUSTON AVE DRAIN
12-ORA-091-2.15-ANA, Orange, CA
Built 1958 Load: 32.4 t ADT: 8,650
STATE ROUTE 55
GoodOver: NORTH ORANGE UC
12-ORA-055-15.50-ORA, Orange, CA
Built 1961 Load: 32.4 t ADT: 227,000
INTERSTATE 5
GoodOver: EL HORNO CREEK
12-ORA-005-9.51-SJCP, Orange, CA
Built 1958 Load: 32.4 t ADT: 237,000
STATE ROUTE 22
GoodOver: SANTA ANA RIVER
12-ORA-022-R9.85-ORA, Orange, CA
Built 1963 Load: 32.4 t ADT: 252,000
N&S605-N405 CONN
GoodOver: SERVICE RD
12-ORA-605-R0.18-LALM, Orange, CA
Built 1966 Load: 32.4 t ADT: 17,900
STATE ROUTE 22
GoodOver: BNSF RY,AMTRAK,METROLINK
12-ORA-022-R11.56-ORA, Orange, CA
Built 1967 Load: 32.4 t ADT: 150,000
W22 ON RAMP
GoodOver: SANTIAGO CREEK
12-ORA-022-R11.70-ORA, Orange, CA
Built 1967 Load: 32.4 t ADT: 10,000
E22 OFF RAMP
GoodOver: SANTIAGO CREEK
12-ORA-022-R11.70-ORA, Orange, CA
Built 1967 Load: 32.4 t ADT: 10,000
SR 39 (BEACH BLVD)
GoodOver: CARBON CREEK CHANNEL
12-ORA-039-12.37-ANA, Orange, CA
Built 1961 Load: 32.4 t ADT: 57,000
STATE ROUTE 91
GoodOver: CARBON CYN DIVERSION CHA
12-ORA-091-7.27-ANA, Orange, CA
Built 1961 Load: 32.4 t ADT: 225,000
EB 91 OFF RAMP
GoodOver: CARBON CYN DIVERSION CHA
12-ORA-091-7.27-ANA, Orange, CA
Built 1964 Load: 32.4 t ADT: 31,460
INTERSTATE 605
GoodOver: COYOTE CREEK
12-ORA-605-R1.60-LALM, Orange, CA
Built 1966 Load: 32.4 t ADT: 187,000
INTERSTATE 405
GoodOver: SAN DIEGO CREEK CHANNEL
12-ORA-405-1.50-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 205,000
INTERSTATE 405
GoodOver: WESTMINSTER CHANNEL
12-ORA-405-17.80-WTM, Orange, CA
Built 1965 Load: 32.4 t ADT: 256,000
N&S605-N405 CONN
GoodOver: LOS ALAMITOS CHANNEL
12-ORA-605-R0.19-LALM, Orange, CA
Built 1966 Load: 32.4 t ADT: 17,900
INTERSTATE 405
GoodOver: GREENVILLE BANNING CHANN
12-ORA-405-11.70-CMS, Orange, CA
Built 1966 Load: 32.4 t ADT: 300,000
INTERSTATE 405
GoodOver: EAST VALLEY CHANNEL
12-ORA-405-12.90-FNV, Orange, CA
Built 1966 Load: 32.4 t ADT: 300,000
INTERSTATE 405
GoodOver: OCEAN VIEW CHANNEL
12-ORA-405-15.00-FNV, Orange, CA
Built 1966 Load: 32.4 t ADT: 263,000
INTERSTATE 405
GoodOver: HEIL AVE DRAIN
12-ORA-405-15.49-HNTB, Orange, CA
Built 1966 Load: 32.4 t ADT: 263,000
INTERSTATE 405
GoodOver: E GARDEN GROVE CHANNEL
12-ORA-405-15.87-WTM, Orange, CA
Built 1966 Load: 32.4 t ADT: 263,000
INTERSTATE 405
GoodOver: SANTA ANA DELHI CHANNEL
12-ORA-405-9.38-CMS, Orange, CA
Built 1968 Load: 32.4 t ADT: 233,000
STATE ROUTE 91
GoodOver: PATT DRAIN #1
12-ORA-091-3.79-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 169,000
STATE ROUTE 91
GoodOver: PATT DRAIN #2
12-ORA-091-3.80-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 169,000
STATE ROUTE 91
GoodOver: PATT DRAIN #3
12-ORA-091-3.81-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 169,000
STATE ROUTE 91
GoodOver: PATT DRAIN #4
12-ORA-091-3.82-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 319,000
STATE ROUTE 91
GoodOver: PATT DRAIN #5
12-ORA-091-3.90-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 319,000
STATE ROUTE 91
GoodOver: PATT DRAIN #6
12-ORA-091-4.00-ANA, Orange, CA
Built 1959 Load: 32.4 t ADT: 319,000
STATE ROUTE 55
GoodOver: MACARTHUR STORM CHANNEL
12-ORA-055-R7.06-SA, Orange, CA
Built 1966 Load: 32.4 t ADT: 222,000
INTERSTATE 405
GoodOver: LAGUNA CHANNEL
12-ORA-405-2.03-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 237,000
INTERSTATE 405
GoodOver: SAN JOAQUIN CHANNEL
12-ORA-405-4.24-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 224,000
INTERSTATE 405
GoodOver: SAN JOAQUIN CHANNEL
12-ORA-405-6.13-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 266,000
RAMP/CONNECTOR 405
GoodOver: LANE CHANNEL
12-ORA-405-6.86-IRVN, Orange, CA
Built 1968 Load: 32.4 t ADT: 240,000
S57-ORANGETHORPE
GoodOver: PLACENTIA CHANNEL
12-ORA-057-16.50-PLCN, Orange, CA
Built 1969 Load: 32.4 t ADT: 7,970
STATE ROUTE 1
GoodOver: DOHENY PARK RD
12-ORA-001-R0.78-DAPT, Orange, CA
Built 1976 Load: 32.4 t ADT: 37,000
STATE ROUTE 1
GoodOver: BNSF RY,AMTRAK,METROLINK
12-ORA-001-R0.86-DAPT, Orange, CA
Built 1976 Load: 32.4 t ADT: 37,000
DOHENY-N1 ON RAMP
GoodOver: BNSF RY,AMTRAK,METROLINK
12-ORA-001-R0.85-DAPT, Orange, CA
Built 1976 Load: 32.4 t ADT: 3,000
STATE ROUTE 1
GoodOver: SAN JUAN CREEK
12-ORA-001-R0.97-DAPT, Orange, CA
Built 1976 Load: 32.4 t ADT: 37,000
Showing 21,501-21,550 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 |