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 HIGHWAY 71
GoodOver: LITTLE CHINO CREEK
08-SBD-071-R3.04-CHNH, San Bernardino, CA
Built 1997 Load: 32.4 t ADT: 96,000
STATE ROUTE 127
GoodOver: AMARGOSA RIVER
08-SBD-127-31.90, San Bernardino, CA
Built 1993 Load: 32.4 t ADT: 850
STATE ROUTE 18
GoodOver: BIG BEAR CREEK
08-SBD-018-44.32, San Bernardino, CA
Built 2011 Load: 32.4 t ADT: 4,900
STATE HIGHWAY 71
GoodOver: POMONA RINCON ROAD DRAIN
08-SBD-071-R5.90-CHNH, San Bernardino, CA
Built 1997 Load: 32.4 t ADT: 73,000
SOQUEL CYN RD,RAMP
GoodOver: LOWER LOS SERRANOS CHAN
08-SBD-071-R4.94-CHNH, San Bernardino, CA
Built 1998 Load: 32.4 t ADT: 12,600
INTERSTATE 15 SB
GoodOver: IVANPAH DITCH
08-SBD-015-179.39, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 19,000
STATE ROUTE 138
GoodOver: HOG RANCH CREEK
08-SBD-138-R17.34, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 5,500
STATE ROUTE 138
GoodOver: MINER'S SHACK CREEK
08-SBD-138-R17.76, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 5,500
STATE ROUTE 138
GoodOver: DOUBLE DRAIN CREEK
08-SBD-138-R18.29, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 5,500
S215 ON RAMP
GoodOver: BASELINE STREET
08-SBD-215-8.02-SBD, San Bernardino, CA
Built 2013 Load: 32.4 t ADT: 12,491
S215 OFF RAMP
GoodOver: BASELINE STREET
08-SBD-215-8.10-SBD, San Bernardino, CA
Built 2013 Load: 32.4 t ADT: 1,001
INTERSTATE 15
GoodOver: HODGE WASH
08-SBD-015-59.94, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 54,000
STATE ROUTE 210
GoodOver: CACTUS CHANNEL
08-SBD-210-17.68-RIA, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 160,000
STATE ROUTE 138
GoodOver: HORSETHIEF CREEK
08-SBD-138-R24.11, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 1,550
WESTBOUND I-40
GoodOver: MARBLE WASH
08-SBD-040-R80.42, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
INTERSTATE 40 EB
GoodOver: MARBLE WASH
08-SBD-040-R80.44, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
WESTBOUND I-40
GoodOver: FORTRESS WASH
08-SBD-040-R90.53, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
EASTBOUND I-40
GoodOver: FORTRESS WASH
08-SBD-040-R90.52, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
WESTBOUND I-40
GoodOver: NEPRUD WASH
08-SBD-040-R91.64, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
EASTBOUND I-40
GoodOver: NEPRUD WASH
08-SBD-040-R91.66, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 8,500
STATE ROUTE 138
GoodOver: SHEEP CREEK
08-SBD-138-3.62, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 20,100
STATE ROUTE 138
GoodOver: WILDLIFE UC
08-SBD-138-13.95, San Bernardino, CA
Built 2018 Load: 32.4 t ADT: 18,500
EASTBOUND I-40
GoodOver: VAN WINKLE WASH
08-SBD-040-R85.21, San Bernardino, CA
Built 2014 Load: 32.4 t ADT: 8,500
INTERSTATE 40 WB
GoodOver: HALLER WASH
08-SBD-040-R95.14, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 6,000
INTERSTATE 40 EB
GoodOver: HALLER WASH
08-SBD-040-R95.13, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 6,000
INTERSTATE 40 WB
GoodOver: ROJO WASH
08-SBD-040-R98.30, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 6,000
INTERSTATE 40 EB
GoodOver: ROJO WASH
08-SBD-040-R98.27, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 6,000
INTERSTATE 15 SB
GoodOver: CENDA DITCH
08-SBD-015-172.11L, San Bernardino, CA
Built 2017 Load: 32.4 t ADT: 18,500
N15-S215 CONN
GoodOver: CAJON CREEK / CAJON BLVD
08-SBD-015-16.07, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 1,001
ALDER AVENUE
GoodOver: CACTUS CHANNEL
08-SBD-000--RIA, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 8,000
LOCUST AVENUE
GoodOver: CACTUS CHANNEL
08-SBD-000--RIA, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 8,000
LINDEN AVENUE
GoodOver: CACTUS CHANNEL
08-SBD-000--RIA, San Bernardino, CA
Built 2005 Load: 32.4 t ADT: 8,000
STATE ROUTE 58 WB
GoodOver: BNSF RR
08-SBD-058-R7.83, San Bernardino, CA
Built 2020 Load: 32.4 t ADT: 7,200
STATE ROUTE 58 EB
GoodOver: BNSF RR
08-SBD-058-R7.77, San Bernardino, CA
Built 2020 Load: 32.4 t ADT: 7,200
STATE ROUTE 58
GoodOver: BECCA WASH
08-SBD-058-R6.30, San Bernardino, CA
Built 2021 Load: 32.4 t ADT: 14,400
STATE ROUTE 58
GoodOver: KICKY WASH
08-SBD-058-R7.05, San Bernardino, CA
Built 2020 Load: 32.4 t ADT: 14,400
STATE ROUTE 58
GoodOver: BAKKEN WASH
08-SBD-058-R9.98, San Bernardino, CA
Built 2020 Load: 32.4 t ADT: 14,400
CHERRY AVE & RAMPS
GoodOver: CHERRY AVE & W10 RAMPS
08-SBD-010-13.17-FNA, San Bernardino, CA
Built 2015 Load: 32.4 t ADT: 20,000
W10 OFF RAMP
GoodOver: W/B I-10 CHERRY OFFRAMP
08-SBD-010-13.36-FNA, San Bernardino, CA
Built 2015 Load: 32.4 t ADT: 7,800
STATE ROUTE 71
GoodOver: SLAUGHTER CREEK
08-SBD-071-R7.79-CHNH, San Bernardino, CA
Built 1997 Load: 32.4 t ADT: 62,000
S15 ON & OFF RAMPS
GoodOver: ORO GRANDE WASH
08-SBD-015-38.62-VCTV, San Bernardino, CA
Built 2013 Load: 32.4 t ADT: 5,000
INTERSTATE 40
GoodOver: TENTH DITCH
08-SBD-040-R12.43, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 8,500
INTERSTATE 40 EB
GoodOver: TENTH DITCH
08-SBD-040-R12.43, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 8,500
ALABAMA ST
GoodOver: MOREY ARROYO
0.9 MI S OF I-10, San Bernardino, CA
Built 1957 Load: 32.4 t ADT: 28,200
CHERRY AVENUE
GoodOver: HAWKER-CRAWFORD CHANNEL
0.25 MI N OF I-15, San Bernardino, CA
Built 1976 Load: 32.4 t ADT: 9,800
TENNESSEE ST
GoodOver: MISSION ZANJA
0.6 MI S OF 1-10, San Bernardino, CA
Built 1965 Load: 32.4 t ADT: 25,020
TENNESSEE ST
GoodOver: MOREY ARROYO
1.0 MI S OF I-10, San Bernardino, CA
Built 1965 Load: 32.4 t ADT: 25,020
6TH STREET
GoodOver: W CUCAMONGA CREEK
1.1 MI E ROUTE 83, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 7,821
DEL ROSA AV
GoodOver: DEL ROSA STORM DRAIN
0.2 MI S HIGHLAND AVE, San Bernardino, CA
Built 1940 Load: 32.4 t ADT: 2,998
IOWA ST
GoodOver: MISSION ZANJA
0.5 MI N BARTON RD, San Bernardino, CA
Built 1964 Load: 32.4 t ADT: 200
Showing 22,301-22,350 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 |