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 38
FairOver: HOLCOMB CREEK
08-SBD-038-31.77, San Bernardino, CA
Built 1960 Load: 32.4 t ADT: 2,500
STATE ROUTE 210 WB
FairOver: EAST ETIWANDA CREEK
08-SBD-210-11.02-RCUC, San Bernardino, CA
Built 2000 Load: 32.4 t ADT: 93,000
INTERSTATE 15 NB
FairOver: MESQUITE DITCH
08-SBD-015-169.58R, San Bernardino, CA
Built 1963 Load: 32.4 t ADT: 18,500
STATE ROUTE 60
FairOver: UP RR, SAN ANTONIO CREEK
08-SBD-060-R0.06-CHN, San Bernardino, CA
Built 1970 Load: 32.4 t ADT: 218,000
STATE ROUTE 60
FairOver: UP RR SPUR
08-SBD-060-R0.40-CHN, San Bernardino, CA
Built 1970 Load: 32.4 t ADT: 218,000
INTERSTATE 15
FairOver: CALIFORNIA AQUEDUCT
08-SBD-015-34.34-HES, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 105,000
U.S. HIGHWAY 395
FairOver: CALIFORNIA AQUEDUCT
08-SBD-395-6.83, San Bernardino, CA
Built 1968 Load: 32.4 t ADT: 26,500
STATE ROUTE 60
FairOver: CUCAMONGA CREEK
08-SBD-060-R7.52-ONT, San Bernardino, CA
Built 1972 Load: 32.4 t ADT: 221,000
STATE ROUTE 60
FairOver: LOWER DEER CREEK
08-SBD-060-R8.37-ONT, San Bernardino, CA
Built 1972 Load: 32.4 t ADT: 215,000
INTERSTATE 40
FairOver: DIKE WASH
08-SBD-040-147.89, San Bernardino, CA
Built 1967 Load: 32.4 t ADT: 7,200
INTERSTATE 40 WB
FairOver: BNSF RY & AMTRAK
08-SBD-040-R135.88, San Bernardino, CA
Built 1971 Load: 32.4 t ADT: 8,750
INTERSTATE 15 NB
FairOver: EAST ETIWANDA CREEK
08-SBD-015-7.56-RCUC, San Bernardino, CA
Built 1976 Load: 32.4 t ADT: 80,000
INTERSTATE 15 NB
FairOver: VICTORIA STREET
08-SBD-015-7.44-RCUC, San Bernardino, CA
Built 1976 Load: 32.4 t ADT: 80,000
STATE ROUTE 62
FairOver: WHIPPLE MTN WASH
08-SBD-062-132.42, San Bernardino, CA
Built 1969 Load: 32.4 t ADT: 2,346
INTERSTATE 40
FairOver: SAGE DITCH
08-SBD-040-R73.10, San Bernardino, CA
Built 1972 Load: 32.4 t ADT: 33,000
INTERSTATE 40
FairOver: NEEDLES FLOOD CONTROL CH
08-SBD-040-R143.11-NED, San Bernardino, CA
Built 1973 Load: 32.4 t ADT: 9,000
STATE ROUTE 62
FairOver: QUAIL WASH
08-SBD-062-18.96, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 17,340
STATE ROUTE 62
FairOver: BURNT MOUNTAIN WASH
08-SBD-062-12.80, San Bernardino, CA
Built 1980 Load: 32.4 t ADT: 28,500
STATE ROUTE 210 WB
FairOver: SAND CREEK
08-SBD-210-R27.24-HIGH, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 50,000
STATE ROUTE 210 EB
FairOver: SAND CREEK
08-SBD-210-R27.24-HIGH, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 50,000
STATE ROUTE 210 WB
FairOver: 27TH STREET
08-SBD-210-21.49-SBD, San Bernardino, CA
Built 2007 Load: 32.4 t ADT: 59,000
STATE ROUTE 58 WB
FairOver: TURTLE WASH
08-SBD-058-R14.23, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 7,200
STATE ROUTE 58 EB
FairOver: TURTLE WASH
08-SBD-058-R14.38, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 7,200
STATE ROUTE 58 WB
FairOver: HAWES WASH
08-SBD-058-R15.83, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 7,200
STATE ROUTE 58 EB
FairOver: HAWES WASH
08-SBD-058-R15.83, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 7,200
STATE ROUTE 58 WB
FairOver: IRON WASH
08-SBD-058-R20.64, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 6,750
STATE ROUTE 58 EB
FairOver: IRON WASH
08-SBD-058-R20.64, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 6,750
W10 ON-RAMP
FairOver: SAN TIMOTEO CREEK
08-SBD-010-25.46-SBD, San Bernardino, CA
Built 1993 Load: 32.4 t ADT: 8,500
STATE ROUTE 58 EB
FairOver: MOJAVE RIVER
08-SBD-058-R32.30, San Bernardino, CA
Built 2000 Load: 32.4 t ADT: 6,750
INTERSTATE 10
FairOver: RIALTO CHANNEL
08-SBD-010-19.90-RIA, San Bernardino, CA
Built 1994 Load: 32.4 t ADT: 203,000
STATE ROUTE 58
FairOver: ASTRID WASH
08-SBD-058-R16.44, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 14,400
STATE ROUTE 58
FairOver: MARIVICK WASH
08-SBD-058-R18.61, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 13,500
STATE ROUTE 58
FairOver: RASMUSSEN WASH
08-SBD-058-R21.26, San Bernardino, CA
Built 1992 Load: 32.4 t ADT: 13,500
STATE ROUTE 210
FairOver: CUCAMONGA CREEK
08-SBD-210-3.92-RCUC, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 185,000
OLD HWY 58
FairOver: HIKER DITCH
08-SBD-015-76.90, San Bernardino, CA
Built 2000 Load: 32.4 t ADT: 870
STATE ROUTE 210 WB
FairOver: KNOX AVENUE
08-SBD-210-13.42-RCUC, San Bernardino, CA
Built 2001 Load: 32.4 t ADT: 60,000
STATE ROUTE 210 EB
FairOver: KNOX AVENUE
08-SBD-210-13.42-RCUC, San Bernardino, CA
Built 2001 Load: 32.4 t ADT: 60,000
INTERSTATE 15 SB
FairOver: HOT WASH
08-SBD-015-160.67, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 NB
FairOver: HOT WASH
08-SBD-015-160.67, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 SB
FairOver: WEST VALLEY WELLS DITCH
08-SBD-015-160.94, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 NB
FairOver: WEST VALLEY WELLS DITCH
08-SBD-015-160.94, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 SB
FairOver: VALLEY WELLS DITCH
08-SBD-015-161.50, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 NB
FairOver: VALLEY WELLS DITCH
08-SBD-015-161.50, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 SB
FairOver: WINDMILL STATION DITCH
08-SBD-015-162.19, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 NB
FairOver: WINDMILL STATION DITCH
08-SBD-015-162.19, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 SB
FairOver: WELLS DITCH
08-SBD-015-162.47, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
INTERSTATE 15 NB
FairOver: WELLS DITCH
08-SBD-015-162.47, San Bernardino, CA
Built 2003 Load: 32.4 t ADT: 18,500
SB AIF TRUCK LANES
FairOver: IVANPAH DITCH
08-SBD-015-179.39, San Bernardino, CA
Built 2016 Load: 32.4 t ADT: 19,000
N215-INLAND CENTER
FairOver: WARM CREEK
08-SBD-215-5.24-SBD, San Bernardino, CA
Built 2010 Load: 32.4 t ADT: 2,000
S215-ORANGE SHOW
FairOver: WARM CREEK
08-SBD-215-5.24-SBD, San Bernardino, CA
Built 2010 Load: 32.4 t ADT: 1,001
Showing 13,601-13,650 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.