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 83
FairOver: CHINO CREEK
08-SBD-083-0.93-CHN, San Bernardino, CA
Built 2006 Load: 32.4 t ADT: 32,500
S215-5TH ST OFF
FairOver: 5TH STREET
08-SBD-215-7.20-SBD, San Bernardino, CA
Built 2013 Load: 32.4 t ADT: 160,000
N215-2ND ST OFF R
FairOver: BNSF RY & METROLINK
08-SBD-215-6.60-SBD, San Bernardino, CA
Built 2013 Load: 32.4 t ADT: 1,001
INTERSTATE 15 NB
FairOver: HACK WASH
08-SBD-015-142.26, San Bernardino, CA
Built 2004 Load: 32.4 t ADT: 22,000
INTERSTATE 15 SB
FairOver: KALI DITCH
08-SBD-015-154.67, San Bernardino, CA
Built 2004 Load: 32.4 t ADT: 18,500
INTERSTATE 40 EB
FairOver: BNSF RY & AMTRAK
08-SBD-040-R107.52, San Bernardino, CA
Built 2006 Load: 32.4 t ADT: 7,500
INTERSTATE 40
FairOver: MACDONALD WASH
08-SBD-040-R94.37, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
INTERSTATE 40
FairOver: CHUCKWALLA WASH
08-SBD-040-R97.14, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
INTERSTATE 40
FairOver: CHUCKWALLA WASH
08-SBD-040-R97.14, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
INTERSTATE 40
FairOver: MUSTANG WASH
08-SBD-040-R97.62, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
INTERSTATE 40
FairOver: MUSTANG WASH
08-SBD-040-R97.62, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 13,600
STATE ROUTE 173
FairOver: BIG PINES CREEK
08-SBD-173-10.86, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 30
INTERSTATE 40 WB
FairOver: WATSON WASH
08-SBD-040-R105.90, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 7,500
INTERSTATE 40
FairOver: WATSON WASH
08-SBD-040-R105.90, San Bernardino, CA
Built 2004 Load: 32.4 t ADT: 7,500
STATE ROUTE 18
FairOver: CUSHENBURY CREEK
08-SBD-018-66.80, San Bernardino, CA
Built 2010 Load: 32.4 t ADT: 4,400
WESTBOUND I-40
FairOver: VAN WINKLE WASH
08-SBD-040-R85.19, San Bernardino, CA
Built 2014 Load: 32.4 t ADT: 8,500
WESTBOUND I-40
FairOver: HOFF WASH
08-SBD-040-R93.65, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 8,500
EASTBOUND I-40
FairOver: HOFF WASH
08-SBD-040-R93.60, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 8,500
INTERSTATE 40 WB
FairOver: CLIPPER VALLEY WASH
08-SBD-040-R99.09, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 6,000
INTERSTATE 40 EB
FairOver: CLIPPER VALLEY WASH
08-SBD-040-R99.14, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 6,000
NB I-15 TRUCK LANE
FairOver: KENWOOD AVENUE
08-SBD-015-R14.96, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 1,001
AYALA DRIVE
FairOver: CACTUS CHANNEL
08-SBD-000--RIA, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 18,000
GLEN HELEN PKWY
FairOver: CAJON WASH
.6 MI S OF ROUTE I-215, San Bernardino, CA
Built 1993 Load: 32.4 t ADT: 1,173
BASELINE ROAD
FairOver: CITY CREEK
0.1 MI E OF RTE 30, San Bernardino, CA
Built 1985 Load: 32.4 t ADT: 17,900
HOLT BLVD
FairOver: W CUCAMONGA CREEK
0.8 MI W VINEYARD AVE, San Bernardino, CA
Built 1986 Load: 32.4 t ADT: 26,646
30TH STREET
FairOver: EAST TWIN CREEK CHANNEL
0.15 MI E OF VALENCIA AVE, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 12,000
WALNUT AVE
FairOver: SAN ANTONIO CREEK CHAN
0.2 MI E RESERVOIR ST, San Bernardino, CA
Built 1970 Load: 32.4 t ADT: 4,220
ALABAMA ST
FairOver: MISSION ZANJA
0.7 MI S OF I-10, San Bernardino, CA
Built 1957 Load: 32.4 t ADT: 27,000
WATERMAN AVE
FairOver: TWIN WARM CREEK
2.1 MI NORTH OF I-10, San Bernardino, CA
Built 1960 Load: 32.4 t ADT: 27,417
TIPPECANOE AVE
FairOver: SANTA ANA RIVER
1.3 MI N I-10, San Bernardino, CA
Built 1985 Load: 32.4 t ADT: 23,800
LYTLE CREEK ROAD
FairOver: GRAPEVINE CANYON
1.3 MI N RTE I 15, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 2,559
HIGHLAND AV
FairOver: DEL ROSA CREEK
300 FEET E OF DEL ROSA, San Bernardino, CA
Built 1952 Load: 32.4 t ADT: 22,440
WEST BROADWAY
FairOver: BNSF RY & AMTRAK
0.3 MI S/O RIVER RD, San Bernardino, CA
Built 1965 Load: 32.4 t ADT: 4,703
UTAH TRAIL
FairOver: 29 PALMS FL CONT CHANNEL
0.6 MI N ROUTE FAP 62, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 2,885
MOUNTAIN AVE
FairOver: STODDARD CREEK
0.4 MI E LA-SBD CO LINE, San Bernardino, CA
Built 1977 Load: 32.4 t ADT: 1,500
MOUNTAIN VIEW AVE
FairOver: UP RR & AMTRAK
1.0 MI S OF I-10, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 23,151
TIPPECANOE AVE
FairOver: WARM CREEK
0.25 MI S BASELINE RD, San Bernardino, CA
Built 1976 Load: 32.4 t ADT: 12,346
FRANCIS STREET
FairOver: W CUCAMONGA CREEK
0.5 MI W VINEYARD AVE, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 3,024
BAKER ST
FairOver: W CUCAMONGA CREEK
1.1 MI S MISSION BLVD, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 1,540
NEW JERSEY ST
FairOver: ZANJA DRAINAGE DITCH
0.6 MI N BARTON RD, San Bernardino, CA
Built 1969 Load: 32.4 t ADT: 3,509
PEDLEY RD
FairOver: CITY CREEK CHANNEL
100' N OF THIRD ST, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 1,345
BASELINE RD
FairOver: DEL ROSA STORM DRAIN
0.2 MI E TIPPECANOE AVE, San Bernardino, CA
Built 1974 Load: 32.4 t ADT: 10,000
MOUNT BALDY RD
FairOver: ICE HOUSE CREEK
1.4 MI N/E LA-SBD CO LINE, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 1,540
MARIPOSA AVE
FairOver: 29 PALMS FL CONT CHANNEL
100' N ROUTE FAP 62, San Bernardino, CA
Built 1969 Load: 32.4 t ADT: 714
BUSH STREET
FairOver: S STREET CHANNEL
0.1 MI N/O RTE 40, San Bernardino, CA
Built 1974 Load: 32.4 t ADT: 91
RAMONA AVE
FairOver: CHINO DRAINAGE DITCH
250 M S CHINO HILLS PKWY, San Bernardino, CA
Built 1978 Load: 32.4 t ADT: 6,900
SIXTH STREET
FairOver: CUCAMONGA CREEK CHANNEL
0.5 MI E VINEYARD AVE, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 6,960
FRANCIS ST
FairOver: CUCAMONGA CREEK CHANNEL
0.25 MI W ARCHIBALD AVE, San Bernardino, CA
Built 1979 Load: 32.4 t ADT: 5,682
ALABAMA ST
FairOver: CITY CREEK
0.2 MI S 3RD ST, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 20,000
MT VIEW AVE
FairOver: SAN TIMOTEO CREEK
0.9 MI S/O I-10, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 23,151
Showing 13,651-13,700 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.