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
METRO LIGHT RAIL
UnknownOver: INTERSTATE 210
07-LA-210-R31.46-ADA, Los Angeles, CA
Built 2012 ADT: 252,000
S/B OFF-RAMP
UnknownOver: PIONEER BLVD
07-LA-005-5.12, Los Angeles, CA
Built 2020 ADT: 3,500
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 110
07-LA-110-20.74-LA, Los Angeles, CA
Built 2012 ADT: 300,000
PARAMOUNT BLVD
UnknownOver: STATE ROUTE 60
07-LA-060-R7.80-MTBL, Los Angeles, CA
Built 2012 ADT: 228,000
SIERRA HW POC
UnknownOver: SIERRA HW
07-LA-014U-29.30-SCTA, Los Angeles, CA
Built 2019 ADT: 12,000
LOS HILLS RD
UnknownOver: ROUTE 101
07-LA-101-31.91, Los Angeles, CA
Built 2018 ADT: 177,000
LIGHT RAIL TRANSIT
UnknownOver: I-405 & NB RAMPS
07-LA-405-23.51-ING, Los Angeles, CA
Built 2017 ADT: 15,866
NB405 OFFRAMP
UnknownOver: SEPULVEDA BLVD
07-LA-405-32.85-LA, Los Angeles, CA
Built 2013 ADT: 11,586
NB405 ON-RAMP
UnknownOver: SEPULVEDA BLVD
07-LA-405-32.94-LA, Los Angeles, CA
Built 2013 ADT: 11,586
NB 405 OFFRAMP
UnknownOver: SOUTH SEPULVEDA BLVD
07-LA-405-31.54-LA, Los Angeles, CA
Built 2013 ADT: 25,000
NB 405 ONRAMP
UnknownOver: SOUTH SEPULVEDA BLVD
07-LA-405-31.61-LA, Los Angeles, CA
Built 2013 ADT: 25,000
INTERSTATE 110 SB
UnknownOver: 105/110 TRANSIT STATION
07-LA-110-13.81-LA, Los Angeles, CA
Built 1991 ADT: 14,700
ROSECRANS BUS STN
UnknownOver: WAITING AREA
07-LA-110-11.88-LA, Los Angeles, CA
Built 1996 ADT: 300
WHITTIER BLVD
UnknownOver: SANTA ANN FWY (SR 101)
07-LA-101-S0.20-LA, Los Angeles, CA
Built 2022 ADT: 137,000
LAX APM BRIDGE
UnknownOver: SEPULVIDA BLVD (ROUTE 1)
07-LA-001-26.86-LA, Los Angeles, CA
Built 2022 ADT: 10,800
SOTO STREET
UnknownOver: VALLEY BLVD & UP RR
0.6 MI NORTH OF FWY 10, Los Angeles, CA
Built 1936 ADT: 21,605
ANAHEIM ST
UnknownOver: LA RIV / DEFOREST AVE
0.1MI E/O I-710 FWY, Los Angeles, CA
Built 1952 ADT: 35,638
VALLEY BLVD
UnknownOver: SAN GABRIEL RIV
0.1MI W/O I-605 FWY, Los Angeles, CA
Built 1916 ADT: 21,000
UP RR
UnknownOver: NATIONAL BLVD
BETWEEN FW10-EXPO BLVD, Los Angeles, CA
Built 1965 ADT: 37,500
METROLINK
UnknownOver: AVENUE 26
0.5 MI NW PASADENA AVE, Los Angeles, CA
Built 1930 ADT: 32,700
FOURTH ST
UnknownOver: CITY STS,RR,LA RIVER
OVER LA RIVER, Los Angeles, CA
Built 1930 ADT: 2,935
BEVERLY BL-1ST ST
UnknownOver: GLENDALE, 2ND, TOLUCA
0.4 MI WEST 110 FWY, Los Angeles, CA
Built 1942 ADT: 24,800
SPTCO
UnknownOver: LOS FELIZ RD UNDERPASS
BTW CITY GNDL AND SENECA, Los Angeles, CA
Built 1960 ADT: 35,532
SUNSET BLVD
UnknownOver: MYRA AVE
0.2 MI SE OF FOUNTAIN AVE, Los Angeles, CA
Built 1929 ADT: 14,300
METROLINK
UnknownOver: FREMONT AVE UP
AT I-10 FWY, Los Angeles, CA
Built 1952 ADT: 26,792
METROLINK
UnknownOver: 6TH ST UP
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 7,478
METROLINK
UnknownOver: GARFIELD AVE UP
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 45,273
METROLINK
UnknownOver: NEW AVE UP
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 33,912
SPTC RR
UnknownOver: DEL MAR AVE UNDER SPTC
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 26,660
SPTCO
UnknownOver: SAN GABRIEL BL UNDER SPT
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 34,246
SPTC RR
UnknownOver: WALNUT GROVE AV UNDER SP
AT I-10 FWY, Los Angeles, CA
Built 1953 ADT: 24,077
COLORADO BLVD
UnknownOver: ARROYO BLVD / ARROYO S
0.5MI E/O SAN RAFAEL AVE, Los Angeles, CA
Built 1913 ADT: 2,900
Metrolink
UnknownOver: BALDWIN AVE
0.3MI S/O VALLEY BLVD, Los Angeles, CA
Built 1956 ADT: 262,820
4TH ST(UPPER LEVEL
UnknownOver: FIGUEROA,FLOWER,RAMP
BTWN HOPE ST & HARBOR FY, Los Angeles, CA
Built 1956 ADT: 21,500
SUNSET BLVD
UnknownOver: GLENDALE BLVD
0.17 M E. ALVARADO STREET, Los Angeles, CA
Built 1934 ADT: 66,495
SUNSET BLVD
UnknownOver: SILVER LAKE BLVD
100 M N OF PARKMAN, Los Angeles, CA
Built 1934 ADT: 33,600
UPRR
UnknownOver: SAN JOSE CRK UP PECK RD
0.3MI NW/O WORKMAN ML RD, Los Angeles, CA
Built 1962 ADT: 28,760
HOPE STREET
UnknownOver: 4TH STREET
AT 4TH STREET, Los Angeles, CA
Built 1969 ADT: 25,796
GARVEY AVE
UnknownOver: FREMONT AVE
0.8MI W/O ATLANTIC BLVD, Los Angeles, CA
Built 1934 ADT: 27,360
GARVEY AVE
UnknownOver: MONTEREY PASS RD
0.7MI W/O ATLANTIC BLVD, Los Angeles, CA
Built 1934 ADT: 27,360
FIRST STREET
UnknownOver: FIGUEROA STREET
0.4 MI SW/O US 101, Los Angeles, CA
Built 1940 ADT: 29,500
TEMPLE STREET
UnknownOver: FIGUEROA STREET
0.1 M SE FWY 110, Los Angeles, CA
Built 1940 ADT: 25,198
BNSF
UnknownOver: TELEGRAPH RD
0.1MI W/O GARFIELD AVE, Los Angeles, CA
Built 1925 ADT: 31,376
WILSHIRE BLVD
UnknownOver: BONSALL AVE
0.3MI W/O I-405 FWY, Los Angeles, CA
Built 1957 ADT: 7,000
VALLEY BLVD
UnknownOver: SP/UP RR
0.5MI E/O HACIENDA BLVD, Los Angeles, CA
Built 1957 ADT: 38,160
ATSF RR
UnknownOver: PARAMOUNT BLVD
0.6MI S/O WASHINGTON BLVD, Los Angeles, CA
Built 1958 ADT: 22,684
SPTC R R
UnknownOver: GARVEY AVE UNDER SPTC
0.3MI E/O VALLEY BLVD, Los Angeles, CA
Built 1933 ADT: 10,279
BURBANK BLVD
UnknownOver: LAKE ST / SPTCO
300FT W/O I-5 FWY, Los Angeles, CA
Built 1958 ADT: 408
2ND ST
UnknownOver: MARINE STAD / APPIAN
0.3MI W/O SR-1 HWY, Los Angeles, CA
Built 1955 ADT: 7,925
BNSF
UnknownOver: ATLANTIC BOULEVARD
0.3MI S/O WASHINGTON BL, Los Angeles, CA
Built 1936 ADT: 26,500
Showing 2,801-2,850 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 |