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
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 5
11-SD-005-R14.25-SD, San Diego, CA
Built 1963 ADT: 163,000
INTERSTATE 5
UnknownOver: IMPERIAL AVE
11-SD-005-R14.50-SD, San Diego, CA
Built 1963 ADT: 13,000
N5-19TH ST OFF-RMP
UnknownOver: 19TH STREET-N5 ON-RAMP
11-SD-005-R14.64-SD, San Diego, CA
Built 1963 ADT: 8,400
17TH ST-S5 ON-RAMP
UnknownOver: S5-17TH ST 0FF-RAMP
11-SD-005-R14.64-SD, San Diego, CA
Built 1963 ADT: 6,600
J STREET
UnknownOver: INTERSTATE 5
11-SD-005-R14.74-SD, San Diego, CA
Built 1963 ADT: 163,000
ISLAND AVE
UnknownOver: INTERSTATE 5
11-SD-005-R14.81-SD, San Diego, CA
Built 1963 ADT: 6,600
INTERSTATE 5
UnknownOver: STATE STREET
11-SD-005-R17.04-SD, San Diego, CA
Built 1962 ADT: 3,560
INTERSTATE 5
UnknownOver: LAUREL STREET
11-SD-005-R17.21-SD, San Diego, CA
Built 1962 ADT: 25,900
MISSION BAY DR
UnknownOver: ROUTE 5
11-SD-005-R23.93-SD, San Diego, CA
Built 1966 ADT: 143,000
LA COSTA AVE
UnknownOver: INTERSTATE 5
11-SD-005-R44.07-CBD, San Diego, CA
Built 1965 ADT: 222,000
PROSPECT AVE
UnknownOver: STATE ROUTE 67
11-SD-067-R1.94-SNT, San Diego, CA
Built 1963 ADT: 80,000
INTERSTATE 8 WB
UnknownOver: LAKE JENNINGS PARK RD
11-SD-008-R21.82, San Diego, CA
Built 1965 ADT: 15,500
INTERSTATE 8 EB
UnknownOver: LAKE JENNINGS PARK RD
11-SD-008-R21.82, San Diego, CA
Built 1965 ADT: 15,500
S5-E52 SEPARATION
UnknownOver: RTE 5 & W52-S5
11-SD-005-R25.95-SD, San Diego, CA
Built 1966 ADT: 21,700
INTERSTATE 5 SB
UnknownOver: 19TH STREET
11-SD-005-R10.39-NATC, San Diego, CA
Built 1965 ADT: 2,280
INTERSTATE 5 NB
UnknownOver: 19TH STREET
11-SD-005-R10.39-NATC, San Diego, CA
Built 1965 ADT: 2,280
INTERSTATE 5 SB
UnknownOver: N5-HARBOR DR OFF-RAMP
11-SD-005-R10.68-NATC, San Diego, CA
Built 1964 ADT: 80,500
INTERSTATE 5 NB
UnknownOver: N5-HARBOR DR OFF-RAMP
11-SD-005-R10.68-NATC, San Diego, CA
Built 1964 ADT: 80,500
S5-CLEVELAND OFFRP
UnknownOver: I 5 ON&OFFRMP,CIVIC CENT
11-SD-005-R10.72-NATC, San Diego, CA
Built 1964 ADT: 6,200
INTERSTATE 5 SB
UnknownOver: MTDB LRT, SDIV RR, CIVIC
11-SD-005-R10.75-NATC, San Diego, CA
Built 1964 ADT: 11,700
INTERSTATE 5 NB
UnknownOver: MTDB LRT, SDIV RR, CIVIC
11-SD-005-R10.75-NATC, San Diego, CA
Built 1964 ADT: 11,700
N5-PLAZA BL OFFRMP
UnknownOver: MTDB LRT, SDIV RR, CIVIC
11-SD-005-R10.75-NATC, San Diego, CA
Built 1964 ADT: 11,700
INTERSTATE 5
UnknownOver: 8TH STREET
11-SD-005-R11.13-NATC, San Diego, CA
Built 1964 ADT: 18,584
INTERSTATE 8 WB
UnknownOver: LOS COCHES RD
11-SD-008-R20.04, San Diego, CA
Built 1965 ADT: 16,700
INTERSTATE 8 EB
UnknownOver: LOS COCHES RD
11-SD-008-R20.04, San Diego, CA
Built 1965 ADT: 16,700
INTERSTATE 8 WB
UnknownOver: BROADWAY
11-SD-008-R18.41-ECJ, San Diego, CA
Built 1965 ADT: 28,600
INTERSTATE 8 EB
UnknownOver: BROADWAY
11-SD-008-R18.41-ECJ, San Diego, CA
Built 1965 ADT: 28,600
INTERSTATE 8 WB
UnknownOver: GREENFIELD DR
11-SD-008-R18.73-ECJ, San Diego, CA
Built 1965 ADT: 25,900
INTERSTATE 8 EB
UnknownOver: GREENFIELD DR
11-SD-008-R18.73-ECJ, San Diego, CA
Built 1965 ADT: 25,900
INTERSTATE 5
UnknownOver: LOMAS SANTA FE DR
11-SD-005-R37.38-SOLB, San Diego, CA
Built 1963 ADT: 29,400
SASSAFRAS ST SB
UnknownOver: BNSF, LRT, KETTNER, STS
11-SD-005-R17.60-SD, San Diego, CA
Built 1965 ADT: 15,571
N5-PACIFIC HWY OFF
UnknownOver: I 5, BNSF, MTDB LRT, STS
11-SD-005-R17.57-SD, San Diego, CA
Built 1965 ADT: 17,000
INTERSTATE 5
UnknownOver: CARMEL VALLEY RD
11-SD-005-R32.90-SD, San Diego, CA
Built 1964 ADT: 12,700
DEL MAR HEIGHTS RD
UnknownOver: INTERSTATE 5
11-SD-005-R34.13-SD, San Diego, CA
Built 1988 ADT: 245,000
INTERSTATE 5
UnknownOver: VIA DE LA VALLE
11-SD-005-R36.27-SD, San Diego, CA
Built 1964 ADT: 22,100
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 5
11-SD-005-R17.50-SD, San Diego, CA
Built 1965 ADT: 183,000
INTERSTATE 15
UnknownOver: S15-MAIN,S BR CHOLLAS CR
11-SD-015-0.45-SD, San Diego, CA
Built 1954 ADT: 4,450
INTERSTATE 15
UnknownOver: MTDB LRT,SDIVRR,IMPERIAL
11-SD-015-1.49-SD, San Diego, CA
Built 1951 ADT: 14,200
INTERSTATE 15
UnknownOver: MARKET STREET
11-SD-015-1.85-SD, San Diego, CA
Built 1954 ADT: 22,300
MARKET-N15 ON-RAMP
UnknownOver: MARKET STREET
11-SD-015-1.85-SD, San Diego, CA
Built 1996 ADT: 22,300
ADAMS AVENUE
UnknownOver: INTERSTATE 15 & RAMP
11-SD-015-M5.60-SD, San Diego, CA
Built 1960 ADT: 11,000
INTERSTATE 15
UnknownOver: SAN DIEGO RIVER
11-SD-015-R6.26-SD, San Diego, CA
Built 1960 ADT: 2,400
W78-S15 CONNECTOR
UnknownOver: METCALF STREET
11-SD-078-R16.66-ESD, San Diego, CA
Built 1977 ADT: 5,450
STATE ROUTE 78 WB
UnknownOver: METCALF STREET
11-SD-078-R16.66-ESD, San Diego, CA
Built 1964 ADT: 5,450
STATE ROUTE 78 EB
UnknownOver: METCALF STREET
11-SD-078-R16.66-ESD, San Diego, CA
Built 1964 ADT: 5,450
ROCK SPRINGS RD
UnknownOver: STATE ROUTE 78
11-SD-078-R16.93-ESD, San Diego, CA
Built 1964 ADT: 89,000
STATE ROUTE 78 WB
UnknownOver: CENTRE CITY PARKWAY
11-SD-078-R17.27-ESD, San Diego, CA
Built 1964 ADT: 27,930
STATE ROUTE 78 EB
UnknownOver: CENTRE CITY PARKWAY
11-SD-078-R17.27-ESD, San Diego, CA
Built 1964 ADT: 27,930
E78-CENTRE CITY PK
UnknownOver: CENTRE CITY PARKWAY
11-SD-078-R17.27-ESD, San Diego, CA
Built 1964 ADT: 27,930
CLAIREMONT MESA EB
UnknownOver: STATE ROUTE 163 & RAMPS
11-SD-163-8.81-SD, San Diego, CA
Built 1964 ADT: 6,700
Showing 5,201-5,250 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 |