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
ROUTE 118
UnknownOver: LAUREL CANYON BLVD
07-LA-118-R11.56L-LA, Los Angeles, CA
Built 1976 ADT: 14,504
N5-E118 CONNECTOR
UnknownOver: N5-PAXTON & PAXTON-N5
07-LA-005-39.15-LA, Los Angeles, CA
Built 1976 ADT: 4,440
LINDERO CANYON RD
UnknownOver: ROUTE 101
07-LA-101-37.54-WLKV, Los Angeles, CA
Built 1973 ADT: 175,000
ROUTE 118
UnknownOver: ARLETA AVE
07-LA-118-R11.05L-LA, Los Angeles, CA
Built 1976 ADT: 8,008
INTERSTATE 10
UnknownOver: W COVINA PARKWAY
07-LA-010-34.46-WCOV, Los Angeles, CA
Built 1975 ADT: 18,500
STATE ROUTE 91
UnknownOver: LONG BEACH BLVD
07-LA-091-R11.10-LBCH, Los Angeles, CA
Built 1974 ADT: 13,000
GRAND-W10 ON-RAMP
UnknownOver: N GARVEY AVENUE
07-LA-010-38.40-WCOV, Los Angeles, CA
Built 1975 ADT: 4,600
W10-GRAND OFF-RAMP
UnknownOver: N GARVEY AVENUE
07-LA-010-38.41-WCOV, Los Angeles, CA
Built 1975 ADT: 4,600
ROUTE 14 SB
UnknownOver: RANCHO VISTA BOULEVARD
07-LA-014-R61.37-PMDL, Los Angeles, CA
Built 1972 ADT: 9,800
ROUTE 14 NB
UnknownOver: RANCHO VISTA BOULEVARD
07-LA-014-R61.37-PMDL, Los Angeles, CA
Built 1972 ADT: 9,800
STATE ROUTE 14
UnknownOver: AVENUE "K"
07-LA-014-R66.73-LAN, Los Angeles, CA
Built 1972 ADT: 11,225
STATE ROUTE 14
UnknownOver: AVENUE "K"
07-LA-014-R66.73-LAN, Los Angeles, CA
Built 1972 ADT: 11,225
STATE ROUTE 14
UnknownOver: LANCASTER BLVD
07-LA-014-R68.46-LAN, Los Angeles, CA
Built 1972 ADT: 2,596
EL SEGUNDO BL-N405
UnknownOver: UP RR & EL SEGUNDO BL
07-LA-405-20.17-HAW, Los Angeles, CA
Built 1989 ADT: 40,659
MADISON AVE UTL OC
UnknownOver: ROUTE 210
07-LA-210-R25.97-PAS, Los Angeles, CA
Built 1976 ADT: 294,000
BALBOA BLVD
UnknownOver: ROUTE 118
07-LA-118-R7.80-LA, Los Angeles, CA
Built 1976 ADT: 222,000
RUFFNER AVE
UnknownOver: STATE ROUTE 118
07-LA-118-R8.05-LA, Los Angeles, CA
Built 1976 ADT: 222,000
E210-ROSEMEAD OFF
UnknownOver: SIERRA MADRE & E210 ONRP
07-LA-210-R29.35-PAS, Los Angeles, CA
Built 1976 ADT: 5,200
ROUTE 105 & LRT
UnknownOver: ROUTE 405,CONNS,STREETS
07-LA-105-R2.00-HAW, Los Angeles, CA
Built 1991 ADT: 5,989
ROUTE 105 WB
UnknownOver: IMPERIAL HWY
07-LA-105-R0.39-LA, Los Angeles, CA
Built 1990 ADT: 20,400
ROUTE 105 EB
UnknownOver: IMPERIAL HWY
07-LA-105-R0.39-LA, Los Angeles, CA
Built 1990 ADT: 22,440
IMP HWY EB ONRMP
UnknownOver: IMPERIAL HWY EB
07-LA-105-R0.85-ESEG, Los Angeles, CA
Built 1989 ADT: 22,440
ROUTE 105 EB
UnknownOver: BROADWAY
07-LA-105-R7.56-LA, Los Angeles, CA
Built 1989 ADT: 9,180
FIGUEROA ST
UnknownOver: S110-W105 CONNECTOR RAMP
07-LA-110-13.85-LA, Los Angeles, CA
Built 1991 ADT: 20,000
E105-S110 CONN
UnknownOver: UP RR,117TH ST, FIGUEROA
07-LA-105-R7.20-LA, Los Angeles, CA
Built 1991 ADT: 5,100
E105-N110 CONN
UnknownOver: ROUTE 105, 110, LRT
07-LA-105-R7.02-LA, Los Angeles, CA
Built 1989 ADT: 4,590
W105 & LRT
UnknownOver: I 110,BROADWAY,FIGUEROA
07-LA-105-R7.26-LA, Los Angeles, CA
Built 1991 ADT: 95,574
E105 & LRT
UnknownOver: I 110,S110-E105,FIGUEROA
07-LA-105-R7.26-LA, Los Angeles, CA
Built 1986 ADT: 95,574
S110-E105 CONNECTR
UnknownOver: I 110,BUS,HOV,N110-W105
07-LA-110-13.90-LA, Los Angeles, CA
Built 1991 ADT: 1,000
W105-S110 CONN
UnknownOver: 105 & 110,BROADWAY,117TH
07-LA-105-R7.43-LA, Los Angeles, CA
Built 1991 ADT: 224,400
N&S110-E105 CONN
UnknownOver: UP RR, 117TH ST,BROADWAY
07-LA-110-13.70-LA, Los Angeles, CA
Built 1991 ADT: 1,000
ROUTE 105 WB
UnknownOver: MAIN STREET
07-LA-105-R7.79-LA, Los Angeles, CA
Built 1985 ADT: 12,500
ROUTE 105 EB
UnknownOver: MAIN STREET
07-LA-105-R7.79-LA, Los Angeles, CA
Built 1985 ADT: 12,500
S710-ROSECRANS BL
UnknownOver: E105-S710 CONNECTOR RAMP
07-LA-710-R15.20-LYN, Los Angeles, CA
Built 1990 ADT: 9,300
W105-S710 CONN
UnknownOver: ROUTE 105 & LRT, 710
07-LA-105-R13.65-LYN, Los Angeles, CA
Built 1993 ADT: 9,850
N710-W105 CONNECTO
UnknownOver: RTES 105 & 710,LRT,CONN
07-LA-710-R15.44-LYN, Los Angeles, CA
Built 1990 ADT: 16,300
E105-N710 CONN
UnknownOver: ROUTE 105, 710 & LRT
07-LA-105-R13.14-LYN, Los Angeles, CA
Built 1990 ADT: 9,250
ROUTE 105 & LRT
UnknownOver: W105-S710 CONN
07-LA-105-R13.47-PRM, Los Angeles, CA
Built 1993 ADT: 22,700
S710-E105 CONNECTO
UnknownOver: RTES 105 & 710, LTR&CONN
07-LA-710-R16.01-LYN, Los Angeles, CA
Built 1990 ADT: 210,000
GARFIELD-W105 ONRA
UnknownOver: W105-N&S 710 CONN
07-LA-105-R13.83-PRM, Los Angeles, CA
Built 1993 ADT: 31,200
GARFIELD AVE
UnknownOver: ROUTE 105, LRT
07-LA-105-R14.13-PRM, Los Angeles, CA
Built 1989 ADT: 228,000
FACADE AVE
UnknownOver: ROUTE 105, LRT, SOMERSET
07-LA-105-R14.34-PRM, Los Angeles, CA
Built 1988 ADT: 250,000
PARAMOUNT BLVD OC
UnknownOver: ROUTE 105, LRT
07-LA-105-R14.65-SGT, Los Angeles, CA
Built 1989 ADT: 228,000
PEDESTRIAN WALKWAY
UnknownOver: ROUTE 105, LRT, SOMERSET
07-LA-105-R14.43-PRM, Los Angeles, CA
Built 1988 ADT: 250,000
UP RR
UnknownOver: ROUTE 105, LRT, SOMERSET
07-LA-105-R14.38-PRM, Los Angeles, CA
Built 1988 ADT: 250,000
MERKEL AVENUE
UnknownOver: ROUTE 105, LRT, RAMPS
07-LA-105-R14.95-PRM, Los Angeles, CA
Built 1989 ADT: 800
DOWNEY AVE
UnknownOver: ROUTE 105, LRT
07-LA-105-R15.09-PRM, Los Angeles, CA
Built 1989 ADT: 233,000
GARDENDALE, LAUREL
UnknownOver: ROUTE 105, LRT
07-LA-105-R15.36-DNY, Los Angeles, CA
Built 1989 ADT: 233,000
DYNA-METRIC DRWY
UnknownOver: EB 134-SB 710 CONNECTOR
07-LA-134-R13.22-PAS, Los Angeles, CA
Built 1975 ADT: 14,100
HAWTHORNE BLVD
UnknownOver: ROUTE 105 & LRT
07-LA-105-R3.05-HAW, Los Angeles, CA
Built 1993 ADT: 19,380
Showing 2,501-2,550 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 |