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
MOJAVE DRIVE EB
UnknownOver: INTERSTATE 15
08-SBD-015-42.03-VCTV, San Bernardino, CA
Built 1962 ADT: 88,000
INTERSTATE 15 SB
UnknownOver: GHOST TOWN ROAD
08-SBD-015-R81.83, San Bernardino, CA
Built 1963 ADT: 9,047
INTERSTATE 15 NB
UnknownOver: GHOST TOWN ROAD
08-SBD-015-R81.83, San Bernardino, CA
Built 1963 ADT: 9,047
CALICO ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R84.64, San Bernardino, CA
Built 1963 ADT: 83,000
FIRST STREET
UnknownOver: INTERSTATE 15
08-SBD-015-R85.65, San Bernardino, CA
Built 1963 ADT: 83,000
EAST YERMO ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R86.38, San Bernardino, CA
Built 1963 ADT: 75,000
MINNEOLA ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R88.49, San Bernardino, CA
Built 1963 ADT: 46,000
COYOTE LAKE ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R91.81, San Bernardino, CA
Built 1963 ADT: 46,000
HARVARD ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R96.41, San Bernardino, CA
Built 1963 ADT: 46,000
ALVORD MOUNTAIN RD
UnknownOver: INTERSTATE 15
08-SBD-015-R99.49, San Bernardino, CA
Built 1963 ADT: 46,000
FIELD ROAD
UnknownOver: INTERSTATE 15
08-SBD-015-R103.63, San Bernardino, CA
Built 1963 ADT: 75,000
ALDER AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-15.94-RIA, San Bernardino, CA
Built 2005 ADT: 120,000
SIERRA AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-14.93-FNA, San Bernardino, CA
Built 2001 ADT: 120,000
LOCUST AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-16.44-RIA, San Bernardino, CA
Built 2005 ADT: 120,000
LINDEN AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-16.94-RIA, San Bernardino, CA
Built 2005 ADT: 120,000
INTERSTATE 40 WB
UnknownOver: EAST MAIN STREET
08-SBD-040-R2.35, San Bernardino, CA
Built 1964 ADT: 5,400
INTERSTATE 40 EB
UnknownOver: EAST MAIN STREET
08-SBD-040-R2.35, San Bernardino, CA
Built 1964 ADT: 5,400
CAPE GLOUCESTER AV
UnknownOver: ROUTE 40
08-SBD-040-R2.67, San Bernardino, CA
Built 1964 ADT: 39,000
"A" STREET
UnknownOver: INTERSTATE 40
08-SBD-040-R7.18, San Bernardino, CA
Built 1964 ADT: 39,000
N15-N395 CONNECTOR
UnknownOver: INTERSTATE 15
08-SBD-015-31.81, San Bernardino, CA
Built 1964 ADT: 120,000
JOSHUA STREET
UnknownOver: INTERSTATE 15
08-SBD-015-32.32, San Bernardino, CA
Built 1964 ADT: 115,000
PARK MOABI ROAD
UnknownOver: INTERSTATE 40
08-SBD-040-R153.32, San Bernardino, CA
Built 1966 ADT: 17,300
CITRUS AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-13.93-FNA, San Bernardino, CA
Built 2001 ADT: 120,000
HERMOSA AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-6.40-RCUC, San Bernardino, CA
Built 2000 ADT: 197,000
HAVEN AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-6.91-RCUC, San Bernardino, CA
Built 2001 ADT: 200,000
MILLIKEN AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-7.91-RCUC, San Bernardino, CA
Built 2001 ADT: 200,000
ETIWANDA AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-9.92-RCUC, San Bernardino, CA
Built 1999 ADT: 186,000
EAST AVENUE
UnknownOver: STATE ROUTE 210
08-SBD-210-10.43-RCUC, San Bernardino, CA
Built 1999 ADT: 186,000
STATE ROUTE 210 WB
UnknownOver: CHERRY AVENUE
08-SBD-210-11.91-FNA, San Bernardino, CA
Built 2000 ADT: 5,500
STATE ROUTE 210 EB
UnknownOver: CHERRY AVENUE
08-SBD-210-11.91-FNA, San Bernardino, CA
Built 2000 ADT: 5,500
5 MILE STATION RD
UnknownOver: INTERSTATE 40
08-SBD-040-148.20, San Bernardino, CA
Built 1967 ADT: 29,100
STATE ROUTE 18
UnknownOver: E138-S18 CONNECTOR RAMP
08-SBD-018-R17.76, San Bernardino, CA
Built 1965 ADT: 6,800
E138-18 & N18-W138
UnknownOver: STATE HIGHWAY 18
08-SBD-138-R37.83, San Bernardino, CA
Built 1965 ADT: 8,600
EB40 TO PARK ROAD
UnknownOver: ROUTE 40
08-SBD-040-R139.12-NED, San Bernardino, CA
Built 1967 ADT: 16,700
INTERSTATE 40
UnknownOver: NATIONAL TRAILS HWY
08-SBD-040-R18.43, San Bernardino, CA
Built 1968 ADT: 2,500
INTERSTATE 40
UnknownOver: NATIONAL TRAILS HWY
08-SBD-040-R18.43, San Bernardino, CA
Built 1968 ADT: 2,500
NEWBERRY ROAD
UnknownOver: INTERSTATE 40
08-SBD-040-R20.27, San Bernardino, CA
Built 1968 ADT: 19,000
FORT CADY ROAD
UnknownOver: INTERSTATE 40
08-SBD-040-R23.33, San Bernardino, CA
Built 1968 ADT: 39,000
LAVIC ROAD
UnknownOver: INTERSTATE 40
08-SBD-040-R41.91, San Bernardino, CA
Built 1968 ADT: 16,300
INTERSTATE 40 WB
UnknownOver: CRUCERO ROAD
08-SBD-040-R49.98, San Bernardino, CA
Built 1968 ADT: 3,000
INTERSTATE 40 EB
UnknownOver: CRUCERO ROAD
08-SBD-040-R49.98, San Bernardino, CA
Built 1968 ADT: 3,000
STATE ROUTE 60
UnknownOver: EAST END AVENUE
08-SBD-060-R0.29-CHN, San Bernardino, CA
Built 1970 ADT: 6,500
RAMONA AVENUE
UnknownOver: STATE ROUTE 60
08-SBD-060-R1.37-CHN, San Bernardino, CA
Built 1970 ADT: 218,000
CENTRAL AVENUE
UnknownOver: STATE ROUTE 60
08-SBD-060-R2.37-CHN, San Bernardino, CA
Built 1970 ADT: 218,000
STATE ROUTE 60
UnknownOver: MOUNTAIN AVENUE
08-SBD-060-R3.60-CHN, San Bernardino, CA
Built 1970 ADT: 32,000
STATE ROUTE 60
UnknownOver: SAN ANTONIO AVE
08-SBD-060-R4.10-CHN, San Bernardino, CA
Built 1970 ADT: 8,000
STATE ROUTE 60
UnknownOver: ST RTE 83 (EUCLID AVE)
08-SBD-060-R4.56-ONT, San Bernardino, CA
Built 1970 ADT: 33,700
STATE ROUTE 259 SB
UnknownOver: HIGHLAND AVENUE
08-SBD-259-R0.49-SBD, San Bernardino, CA
Built 1968 ADT: 25,000
STATE ROUTE 259 NB
UnknownOver: HIGHLAND AVENUE
08-SBD-259-R0.49-SBD, San Bernardino, CA
Built 1968 ADT: 25,000
STATE ROUTE 259 SB
UnknownOver: 27TH STREET
08-SBD-259-0.81-SBD, San Bernardino, CA
Built 1968 ADT: 8,000
Showing 4,701-4,750 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 |