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 57
GoodOver: POMONA BOULEVARD DRAIN
07-LA-057-R6.75-POM, Los Angeles, CA
Built 1972 Load: 32.4 t ADT: 158,000
STATE ROUTE 14
GoodOver: AVENUE "P-8" DRAIN
07-LA-014-R60.60-PMDL, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 89,000
STATE ROUTE 14
GoodOver: AVENUE P DRAIN
07-LA-014-R61.00-PMDL, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 89,000
STATE ROUTE 14
GoodOver: 10TH STREET DRAIN
07-LA-014-R61.90-PMDL, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 89,000
STATE ROUTE 14
GoodOver: AVENUE "K-8" DRAIN
07-LA-014-R66.10-LAN, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 75,000
STATE ROUTE 14
GoodOver: AVENUE "K" DRAIN
07-LA-014-R66.90-LAN, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 75,000
STATE ROUTE 14
GoodOver: WHITNEY CREEK
07-LA-014-R27.10, Los Angeles, CA
Built 1971 Load: 32.4 t ADT: 148,000
SR 101 ON RAMP
GoodOver: LINDERO CYN RD CULVERT
07-LA-101-37.41-WLKV, Los Angeles, CA
Built 1973 Load: 32.4 t ADT: 7,500
BUSWAY, WB I-10
GoodOver: COUNTY HOSPITAL DRAIN
07-LA-010S-17.64-LA, Los Angeles, CA
Built 1974 Load: 32.4 t ADT: 30,500
STATE ROUTE 118
GoodOver: ALISO CREEK CULVERT
07-LA-118-R6.38-LA, Los Angeles, CA
Built 1980 Load: 32.4 t ADT: 222,000
IMPERIAL HWY-W105
GoodOver: ROUTE 105 & LRT
07-LA-105-R3.50-HAW, Los Angeles, CA
Built 1993 Load: 32.4 t ADT: 6,630
N405-E105 CONNECTR
GoodOver: FELTON ST & SUNDALE AVE
07-LA-405-R21.02-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 12,405
605-W105 CONNECTOR
GoodOver: SAN GABRIEL RV/SERVICE R
07-LA-605-R7.66-NRW, Los Angeles, CA
Built 1993 Load: 32.4 t ADT: 25,450
E105-S605 CONN
GoodOver: METRO NORWALK PARKING
07-LA-105-R17.66-NRW, Los Angeles, CA
Built 1993 Load: 32.4 t ADT: 10,000
PARK & RIDE ACCESS
GoodOver: DOMINGUEZ CHANNEL
07-LA-091-6.03-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 4,600
INTERSTATE 405 SB
GoodOver: SB 405-STUDEBAKER OFFRMP
07-LA-405-0.46-LBCH, Los Angeles, CA
Built 1993 Load: 32.4 t ADT: 127,500
PICO AV OFF-RMP OH
GoodOver: PICO AVE & UP RR
07-LA-710-6.00-LBCH, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 5,500
INTERSTATE 5 SB
GoodOver: THE OLD ROAD
07-LA-005-R47.83, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 96,663
INTERSTATE 5 NB
GoodOver: THE OLD ROAD
07-LA-005-R47.83, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 96,663
SR 118 WB
GoodOver: SAN FERNANDO MISSION BL
07-LA-118-R8.63-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 254,000
SR 118 EB
GoodOver: SAN FERNANDO MISSION BL
07-LA-118-R8.63-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 254,000
SR 118 WB
GoodOver: BULL CREEK CANYON CHAN
07-LA-118-R8.84-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 254,000
SR 118 EB
GoodOver: BULL CREEK CANYON CHAN
07-LA-118-R8.84-LA, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 254,000
SEPULVEDA NB OFF
GoodOver: AIRPORT ACCESS ROAD
07-LA-105-R0.53-LA, Los Angeles, CA
Built 1990 Load: 32.4 t ADT: 28,118
W105-NASH OFF RMP
GoodOver: AIRPORT ACCESS ROAD
07-LA-105-R0.98-LA, Los Angeles, CA
Built 1989 Load: 32.4 t ADT: 16,609
E105-N&S405 CONN
GoodOver: LRT
07-LA-105-R1.63-LA, Los Angeles, CA
Built 1990 Load: 32.4 t ADT: 24,300
W105-IMPERIAL OFFR
GoodOver: ROUTE 105 & LRT
07-LA-105-R1.79-LA, Los Angeles, CA
Built 1990 Load: 32.4 t ADT: 16,949
INTERSTATE 5 SB
GoodOver: BUTTE CANYON
07-LA-005-R50.80, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 96,576
INTERSTATE 5 NB
GoodOver: BUTTE CANYON
07-LA-005-R50.80, Los Angeles, CA
Built 1994 Load: 32.4 t ADT: 96,576
STATE ROUTE 126
GoodOver: SAN MARTINEZ GRANDE CRK
07-LA-126-R1.44, Los Angeles, CA
Built 1998 Load: 32.4 t ADT: 46,000
STATE ROUTE 47
GoodOver: TRAIN TRACKS @ NAVY MOLE
07-LA-047-2.80-LA, Los Angeles, CA
Built 1995 Load: 32.4 t ADT: 53,000
STATE ROUTE 1
GoodOver: MALIBU LAGOON
07-LA-001-46.88-MAL, Los Angeles, CA
Built 1995 Load: 32.4 t ADT: 41,000
RTE 39
GoodOver: W FORK SAN GABRIEL RIVER
07-LA-039-24.10, Los Angeles, CA
Built 1996 Load: 32.4 t ADT: 1,550
STATE ROUTE 110 SB
GoodOver: HILLSIDE
07-LA-110-25.05L-LA, Los Angeles, CA
Built 2001 Load: 32.4 t ADT: 100
STATE ROUTE 110 SB
GoodOver: HILLSIDE
07-LA-110-24.75L-LA, Los Angeles, CA
Built 2001 Load: 32.4 t ADT: 91,500
STATE ROUTE 210
GoodOver: SAN ANTONIO WASH
07-LA-210-R52.14-CLA, Los Angeles, CA
Built 2001 Load: 32.4 t ADT: 155,000
ROUTE 90
GoodOver: CULVER BLVD
07-LA-090-R1.60, Los Angeles, CA
Built 2007 Load: 32.4 t ADT: 78,000
INTERSTATE 5
GoodOver: EMPIRE AVE
07-LA-005-30.47-BRB, Los Angeles, CA
Built 2022 Load: 32.4 t ADT: 239,000
INTERSTATE 5
GoodOver: SANTA CLARA RIVER
07-LA-005-R53.70-SCTA, Los Angeles, CA
Built 2005 Load: 32.4 t ADT: 134,090
HARBOR SCENIC DR
GoodOver: VACANT LAND
07-LA-710-5.95-LBCH, Los Angeles, CA
Built 1970 Load: 32.4 t ADT: 58,000
"O" STREET RAMP
GoodOver: STATE ROUTE 1
07-LA-001-9.15-LA, Los Angeles, CA
Built 2004 Load: 32.4 t ADT: 5,000
N 405-CULVER BLVD
GoodOver: SAWTELLE BLVD
07-LA-405-27.20-CLC, Los Angeles, CA
Built 2010 Load: 32.4 t ADT: 8,900
SR 138 (PEARBLSSM)
GoodOver: BIG ROCK WASH
07-LA-138-61.70, Los Angeles, CA
Built 2007 Load: 32.4 t ADT: 12,800
SB 5 OFFRAMP
GoodOver: GRADED EARTH
07-LA-005-2.45-NRW, Los Angeles, CA
Built 2016 Load: 32.4 t ADT: 9,870
NB 5 ONRAMP
GoodOver: GRADED EARTH
07-LA-005-2.48-NRW, Los Angeles, CA
Built 2016 Load: 32.4 t ADT: 3,670
SB 5 ONRAMP
GoodOver: GRADED EARTH
07-LA-005-2.33-NRW, Los Angeles, CA
Built 2016 Load: 32.4 t ADT: 5,400
NB 5 OFFRAMP
GoodOver: GRADED EARTH
07-LA-005-2.37-NRW, Los Angeles, CA
Built 2016 Load: 32.4 t ADT: 6,390
NEW DOCK OFF RAMP
GoodOver: RAIL ROAD
07-LA-047-3.47-LBCH, Los Angeles, CA
Built 2019 Load: 32.4 t ADT: 5,500
DOCK ST. ON-RAMP
GoodOver: GRADED GROUND.
07-LA-047-3.74-LBCH, Los Angeles, CA
Built 2015 Load: 32.4 t ADT: 11,000
NB RT 103 OFF-RAMP
GoodOver: OPEN GROUND
07-LA-103-0.01-LBCH, Los Angeles, CA
Built 2015 Load: 32.4 t ADT: 14,400
Showing 20,901-20,950 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.