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
S605-KATELLA OFF R
UnknownOver: KATELLA AVE
12-ORA-605-R1.41-LALM, Orange, CA
Built 1966 ADT: 15,000
N605-KATELLA OFF R
UnknownOver: KATELLA AVE
12-ORA-605-R1.41-LALM, Orange, CA
Built 1966 ADT: 15,000
STATE ROUTE 55
UnknownOver: DYER RD
12-ORA-055-R7.87-SA, Orange, CA
Built 1966 ADT: 38,506
STATE ROUTE 55
UnknownOver: MACARTHUR BLVD
12-ORA-055-R6.99-SA, Orange, CA
Built 1966 ADT: 20,000
INTERSTATE 605 SB
UnknownOver: INTERSTATE 405
12-ORA-605-3.48-SLB, Orange, CA
Built 1966 ADT: 255,000
S405-N605 CONN
UnknownOver: RTE 405, 605, CONN, RIV
12-ORA-405-24.11-SLB, Orange, CA
Built 1966 ADT: 11,656
TUSTIN AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-8.39-ANA, Orange, CA
Built 1967 ADT: 213,000
INTERSTATE 605
UnknownOver: E22-N405 CONNECTOR RAMP
12-ORA-605-R0.16-LALM, Orange, CA
Built 1966 ADT: 12,000
STATE ROUTE 55
UnknownOver: MAIN STREET
12-ORA-055-R6.39-SA, Orange, CA
Built 1966 ADT: 15,000
STATE ROUTE 55
UnknownOver: PAULARINO AVE
12-ORA-055-R5.52-CMS, Orange, CA
Built 1966 ADT: 7,000
LA PALMA AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-6.42-ANA, Orange, CA
Built 1967 ADT: 20,300
SR 55
UnknownOver: BAKER STREET
12-ORA-055-R5.34-CMS, Orange, CA
Built 1966 ADT: 10,000
S405-N55 CONNECTOR
UnknownOver: I 405 & N405-S55 CONN
12-ORA-405-8.65-IRVN, Orange, CA
Built 1968 ADT: 274,000
N405-S55 CONN RAMP
UnknownOver: I 405 & S405-N55 CONN
12-ORA-405-8.85-CMS, Orange, CA
Built 1968 ADT: 28,500
SR 55
UnknownOver: S405-N55 CONNECTOR
12-ORA-055-R5.89-CMS, Orange, CA
Built 1966 ADT: 30,339
ROUTE 55
UnknownOver: N405-S55 CONNECTOR
12-ORA-055-R6.06-CMS, Orange, CA
Built 1966 ADT: 17,500
E22-N605&405 CONN
UnknownOver: S605-S405 CONNECTOR
12-ORA-022-R0.38-SLB, Orange, CA
Built 1966 ADT: 32,500
RIVERDALE AVE
UnknownOver: STATE ROUTE 91
12-ORA-091-8.80-ANA, Orange, CA
Built 1967 ADT: 29,760
E22-N605 & N405
UnknownOver: STATE ROUTE 22
12-ORA-022-R0.37-SLB, Orange, CA
Built 1966 ADT: 99,000
BRISTOL ST
UnknownOver: INTERSTATE 405
12-ORA-405-9.51-CMS, Orange, CA
Built 1966 ADT: 233,000
BEAR ST
UnknownOver: INTERSTATE 405
12-ORA-405-9.89-CMS, Orange, CA
Built 1968 ADT: 233,000
N73-N405 CONNECTOR
UnknownOver: INTERSTATE 405
12-ORA-073-R27.76R-CMS, Orange, CA
Built 1968 ADT: 16,797
S405-S73 CONNECTOR
UnknownOver: FAIRVIEW RD-S405 ON-RAMP
12-ORA-405-10.35-CMS, Orange, CA
Built 1968 ADT: 25,000
N405-S55 CONNECTOR
UnknownOver: S55-PAULARINO AVE OFF-RP
12-ORA-405-8.88-CMS, Orange, CA
Built 1968 ADT: 10,800
PAULARINO-N55 ONRP
UnknownOver: N55-S405 CONNECTOR RAMP
12-ORA-055-R5.80-CMS, Orange, CA
Built 1968 ADT: 21,200
S55-S405 CONNECTOR
UnknownOver: I 405, SR 55 & CONNS
12-ORA-055-R6.16-CMS, Orange, CA
Built 1968 ADT: 30,339
MACARTHUR BLVD
UnknownOver: INTERSTATE 405
12-ORA-405-7.80-IRVN, Orange, CA
Built 1968 ADT: 266,000
MACARTHUR BLVD
UnknownOver: INTERSTATE 405
12-ORA-405-7.80-IRVN, Orange, CA
Built 1996 ADT: 25,000
IRVINE CENTER DR
UnknownOver: INTERSTATE 405
12-ORA-405-0.95-IRVN, Orange, CA
Built 1968 ADT: 205,000
SAND CANYON AVE
UnknownOver: INTERSTATE 405
12-ORA-405-2.88-IRVN, Orange, CA
Built 1968 ADT: 237,000
CROWN VALLEY PKWY
UnknownOver: INTERSTATE 5
12-ORA-005-13.78-MSNV, Orange, CA
Built 1969 ADT: 269,000
STATE ROUTE 57
UnknownOver: STATE ROUTE 91
12-ORA-057-15.58-ANA, Orange, CA
Built 1974 ADT: 259,000
S57-E91 CONNECTOR
UnknownOver: STATE ROUTE 91
12-ORA-057-15.59-ANA, Orange, CA
Built 1969 ADT: 259,000
N57-W91 CONN RAMP
UnknownOver: STATE ROUTE 91
12-ORA-057-15.57-ANA, Orange, CA
Built 1974 ADT: 259,000
E91-N57 CONNECTOR
UnknownOver: SR 91 & SR 57
12-ORA-091-5.96-ANA, Orange, CA
Built 1969 ADT: 259,000
W91-S57 CONNECTOR
UnknownOver: ROUTES 91, 57, & CONN'S
12-ORA-091-6.16-ANA, Orange, CA
Built 1974 ADT: 225,000
N133-N405 CONNECTR
UnknownOver: INTERSTATE 405 & RAMP
12-ORA-133-8.34-IRVN, Orange, CA
Built 1968 ADT: 258,200
N133-N405 CONNECTR
UnknownOver: STATE ROUTE 133
12-ORA-133-8.47-IRVN, Orange, CA
Built 1968 ADT: 40,000
N5-N405 CONNECTOR
UnknownOver: INTERSTATE 5
12-ORA-005-21.31-IRVN, Orange, CA
Built 1968 ADT: 297,000
STATE ROUTE 57
UnknownOver: CHAPMAN AVE
12-ORA-057-17.30-FUL, Orange, CA
Built 1969 ADT: 20,000
STATE ROUTE 57
UnknownOver: CROWTHER AVE
12-ORA-057-16.74-PLCN, Orange, CA
Built 1969 ADT: 10,000
STATE ROUTE 57
UnknownOver: ORANGETHORPE AVE
12-ORA-057-16.39-PLCN, Orange, CA
Built 1969 ADT: 20,000
STATE ROUTE 57
UnknownOver: PLACENTIA AVE
12-ORA-057-17.02-PLCN, Orange, CA
Built 1969 ADT: 15,000
AVENIDA MENDOCINO
UnknownOver: INTERSTATE 5
12-ORA-005-1.13-SCLE, Orange, CA
Built 1981 ADT: 151,000
STATE ROUTE 57
UnknownOver: NUTWOOD AVE
12-ORA-057-17.57-FUL, Orange, CA
Built 1969 ADT: 15,000
STATE ROUTE 57
UnknownOver: BASTANCHURY ROAD
12-ORA-057-18.85-FUL, Orange, CA
Built 1970 ADT: 10,000
STATE ROUTE 57
UnknownOver: ASSOCIATED ROAD
12-ORA-057-19.58-FUL, Orange, CA
Built 1970 ADT: 10,000
YORBA LINDA BLVD
UnknownOver: STATE ROUTE 57
12-ORA-057-18.34-FUL, Orange, CA
Built 1970 ADT: 245,000
SR 90 (IMPERIAL)
UnknownOver: STATE ROUTE 57
12-ORA-090-R5.43-BRE, Orange, CA
Built 1970 ADT: 245,000
STATE ROUTE 57
UnknownOver: LA PALMA AVE
12-ORA-057-15.41-ANA, Orange, CA
Built 1974 ADT: 20,000
Showing 3,601-3,650 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 |