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
E94-N15 CONNECTOR
UnknownOver: INTERSTATE 15
11-SD-094-3.16-SD, San Diego, CA
Built 1959 ADT: 121,000
E94-N15 CONNECTOR
UnknownOver: STATE ROUTE 94 WB
11-SD-094-3.25-SD, San Diego, CA
Built 1959 ADT: 152,000
PALOMAR STREET
UnknownOver: INTERSTATE 5
11-SD-005-6.06-CHV, San Diego, CA
Built 1973 ADT: 145,000
INTERSTATE 8
UnknownOver: HOTEL CIRCLE DRIVE
11-SD-008-2.23-SD, San Diego, CA
Built 1959 ADT: 18,560
E8-S163 CONNECTOR
UnknownOver: HOTEL CIRCLE DRIVE
11-SD-008-2.23-SD, San Diego, CA
Built 1959 ADT: 12,000
INTERSTATE 8
UnknownOver: STATE ROUTE 163
11-SD-008-2.41-SD, San Diego, CA
Built 1959 ADT: 167,000
INTERSTATE 8
UnknownOver: E8-N163 CONNECTOR RAMP
11-SD-008-2.56-SD, San Diego, CA
Built 1959 ADT: 28,600
W8-HOTEL CIRCLE DR
UnknownOver: E8-N163 CONNECTOR RAMP
11-SD-008-2.56-SD, San Diego, CA
Built 1991 ADT: 28,600
E8-MISSION CENTER
UnknownOver: E8-N163 & N163-E8 RAMPS
11-SD-008-2.56-SD, San Diego, CA
Built 1978 ADT: 30,500
STATE ROUTE 94
UnknownOver: 28TH STREET
11-SD-094-2.21-SD, San Diego, CA
Built 1959 ADT: 19,600
30TH STREET
UnknownOver: STATE ROUTE 94
11-SD-094-2.46-SD, San Diego, CA
Built 1959 ADT: 109,000
STATE ROUTE 94
UnknownOver: 32ND STREET\BROADWAY
11-SD-094-2.68-SD, San Diego, CA
Built 1959 ADT: 17,000
INTERSTATE 8
UnknownOver: MTDB LRT & SDIV RR
11-SD-008-13.66-ECJ, San Diego, CA
Built 1961 ADT: 29,400
INTERSTATE 8
UnknownOver: MAIN STREET
11-SD-008-14.59-ECJ, San Diego, CA
Built 1961 ADT: 27,200
INTERSTATE 8
UnknownOver: JOHNSON AVE
11-SD-008-15.30-ECJ, San Diego, CA
Built 1961 ADT: 14,800
INTERSTATE 8
UnknownOver: STATE ROUTE 67
11-SD-008-15.80-ECJ, San Diego, CA
Built 1961 ADT: 44,500
W8-S67&N67-W8 RMPS
UnknownOver: ST RTE 67 & CONNECTORS
11-SD-008-15.80-ECJ, San Diego, CA
Built 1961 ADT: 35,500
E8-N67&S67-E8 RMPS
UnknownOver: ST RTE 67 & CONNECTORS
11-SD-008-15.80-ECJ, San Diego, CA
Built 1961 ADT: 35,500
INTERSTATE 8
UnknownOver: BALLANTYNE LANE
11-SD-008-16.05-ECJ, San Diego, CA
Built 1961 ADT: 22,100
W8-N&S67 CONNECTOR
UnknownOver: BALLANTYNE LANE
11-SD-008-16.05-ECJ, San Diego, CA
Built 1961 ADT: 22,100
COLLEGE AVE
UnknownOver: INTERSTATE 8
11-SD-008-8.34-SD, San Diego, CA
Built 1960 ADT: 231,000
CLAREMONT MESA WB
UnknownOver: ROUTE 163 & RAMPS
11-SD-163-8.81-SD, San Diego, CA
Built 1958 ADT: 6,700
INTERSTATE 8
UnknownOver: MTDB LRT,SDIV & MARSHALL
11-SD-008-14.95-ECJ, San Diego, CA
Built 1961 ADT: 4,080
INTERSTATE 8 EB
UnknownOver: WARING ROAD
11-SD-008-7.06-SD, San Diego, CA
Built 1960 ADT: 20,932
INTERSTATE 15 SB
UnknownOver: ROUTE 8
11-SD-015-R6.10-SD, San Diego, CA
Built 1960 ADT: 246,000
INTERSTATE 15 NB
UnknownOver: ROUTE 8
11-SD-015-R6.10-SD, San Diego, CA
Built 1960 ADT: 17,000
TEXAS STREET
UnknownOver: INTERSTATE 8
11-SD-008-3.90-SD, San Diego, CA
Built 1983 ADT: 219,000
25TH STREET
UnknownOver: STATE ROUTE 94
11-SD-094-1.85-SD, San Diego, CA
Built 1959 ADT: 109,000
PRESIDIO PARK DR
UnknownOver: INTERSTATE 8
11-SD-008-0.95-SD, San Diego, CA
Built 1959 ADT: 201,000
INTERSTATE 8
UnknownOver: MOLLISON AVE
11-SD-008-16.47-ECJ, San Diego, CA
Built 1961 ADT: 20,700
INTERSTATE 8
UnknownOver: FIRST STREET
11-SD-008-16.84-ECJ, San Diego, CA
Built 1961 ADT: 12,300
INTERSTATE 8 WB
UnknownOver: 2ND STREET
11-SD-008-17.35-ECJ, San Diego, CA
Built 1961 ADT: 27,000
INTERSTATE 8 EB
UnknownOver: 2ND STREET
11-SD-008-17.35-ECJ, San Diego, CA
Built 1961 ADT: 27,000
INTERSTATE 8 WB
UnknownOver: EAST MAIN STREET
11-SD-008-17.83-ECJ, San Diego, CA
Built 1961 ADT: 27,400
INTERSTATE 8 EB
UnknownOver: EAST MAIN STREET
11-SD-008-17.83-ECJ, San Diego, CA
Built 1961 ADT: 27,400
STATE ROUTE 78
UnknownOver: SMILAX DRIVE
11-SD-078-9.85, San Diego, CA
Built 1994 ADT: 3,160
RANCHO SANTA FE RD
UnknownOver: STATE ROUTE 78
11-SD-078-10.61, San Diego, CA
Built 1962 ADT: 136,000
STATE ROUTE 78
UnknownOver: LAS POSAS RD
11-SD-078-11.18-SMCS, San Diego, CA
Built 1994 ADT: 8,040
E78-GRAND AVE OFF
UnknownOver: LAS POSAS ROAD
11-SD-078-11.18-SMCS, San Diego, CA
Built 2006 ADT: 8,040
S5-10TH AV OFF RAM
UnknownOver: ROUTE 163 SB
11-SD-005-R16.11-SD, San Diego, CA
Built 1962 ADT: 9,250
STATE ROUTE 78
UnknownOver: SAN MARCOS BLVD
11-SD-078-12.13-SMCS, San Diego, CA
Built 1994 ADT: 41,256
STATE ROUTE 78
UnknownOver: WOODLAND PARKWAY
11-SD-078-14.24-SMCS, San Diego, CA
Built 1962 ADT: 1,600
INTERSTATE 5
UnknownOver: RTE 163, CONNECTORS
11-SD-005-R16.02-SD, San Diego, CA
Built 1961 ADT: 18,500
N163-N5 CONNECTOR
UnknownOver: SR 163 & S5-N163 CONN
11-SD-163-0.88-SD, San Diego, CA
Built 1962 ADT: 107,000
S163-S5 CONNECTOR
UnknownOver: SR 163 & S5-N163 CONN
11-SD-163-0.90-SD, San Diego, CA
Built 1962 ADT: 7,000
S5-N163 CONNECTOR
UnknownOver: SR 163
11-SD-005-R16.05-SD, San Diego, CA
Built 1962 ADT: 42,500
5TH AV-S5 ON-RAMP
UnknownOver: S5-10TH AV OFF-RAMP
11-SD-005-R16.18-SD, San Diego, CA
Built 1961 ADT: 17,700
N5-6TH AV OFF RAMP
UnknownOver: N&S163-N5 CONN RAMPS
11-SD-005-R16.17-SD, San Diego, CA
Built 1961 ADT: 20,300
STATE ROUTE 78
UnknownOver: MELROSE DR
11-SD-078-5.94-VSTA, San Diego, CA
Built 1994 ADT: 25,050
CIVIC CENTER DRIVE
UnknownOver: STATE ROUTE 78
11-SD-078-6.94-VSTA, San Diego, CA
Built 1962 ADT: 9,100
Showing 5,101-5,150 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 |