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
INTERSTATE 5 NB
UnknownOver: INTERSTATE 805
11-SD-005-R30.64R-SD, San Diego, CA
Built 1966 ADT: 150,000
INTERSTATE 5 SB
UnknownOver: SORRENTO VLY,CRK,BNSF RY
11-SD-005-R30.44L-SD, San Diego, CA
Built 1966 ADT: 1,000
INTERSTATE 5 NB
UnknownOver: SORRENTO VLY,CRK,BNSF RY
11-SD-005-R30.43R-SD, San Diego, CA
Built 1966 ADT: 14,000
WB52&NB5-LA JOLLA
UnknownOver: MTDB,BNSF,AMTRAK,I 5,CON
11-SD-052-0.19-SD, San Diego, CA
Built 1966 ADT: 14,900
W52-S5 CONNECTOR
UnknownOver: INTERSTATE 5
11-SD-052-0.28-SD, San Diego, CA
Built 1966 ADT: 193,000
INTERSTATE 5
UnknownOver: GILMAN DRIVE
11-SD-005-R26.79-SD, San Diego, CA
Built 1966 ADT: 27,100
INTERSTATE 5
UnknownOver: GILMAN DRIVE
11-SD-005-R26.79-SD, San Diego, CA
Built 1966 ADT: 27,100
LA JOLLA VILLAGE R
UnknownOver: INTERSTATE 5
11-SD-005-R28.43-SD, San Diego, CA
Built 1966 ADT: 140,000
VOIGT DRIVE
UnknownOver: INTERSTATE 5
11-SD-005-R29.09-SD, San Diego, CA
Built 1966 ADT: 153,000
BIRMINGHAM DR
UnknownOver: ROUTE 5
11-SD-005-R39.83-ENTS, San Diego, CA
Built 1964 ADT: 210,000
MACKINNON AVE
UnknownOver: INTERSTATE 5
11-SD-005-R40.12, San Diego, CA
Built 1964 ADT: 210,000
INTERSTATE 5
UnknownOver: SANTA FE DR
11-SD-005-R40.60-ENTS, San Diego, CA
Built 1964 ADT: 24,700
INTERSTATE 5
UnknownOver: SANTA FE DR
11-SD-005-R40.60-ENTS, San Diego, CA
Built 1964 ADT: 24,700
REQUEZA STREET
UnknownOver: ROUTE 5
11-SD-005-R41.18-ENTS, San Diego, CA
Built 1964 ADT: 210,000
INTERSTATE 5 SB
UnknownOver: ENCINITAS BLVD
11-SD-005-R41.51, San Diego, CA
Built 1964 ADT: 34,100
INTERSTATE 5 NB
UnknownOver: ENCINITAS BLVD
11-SD-005-R41.51-ENTS, San Diego, CA
Built 1964 ADT: 34,100
INTERSTATE 8 WB
UnknownOver: FLINN SPRINGS RD
11-SD-008-R23.66, San Diego, CA
Built 1965 ADT: 2,070
INTERSTATE 8 EB
UnknownOver: FLINN SPRINGS RD
11-SD-008-R23.64, San Diego, CA
Built 1965 ADT: 2,070
INTERSTATE 15 SB
UnknownOver: MERCY ROAD
11-SD-015-M17.31-SD, San Diego, CA
Built 1975 ADT: 16,070
INTERSTATE 15 NB
UnknownOver: MERCY ROAD
11-SD-015-M17.31-SD, San Diego, CA
Built 1977 ADT: 16,070
STATE ROUTE 94 WB
UnknownOver: BANCROFT DRIVE
11-SD-094-R11.08-LMSA, San Diego, CA
Built 1966 ADT: 20,200
STATE ROUTE 94 EB
UnknownOver: BANCROFT DRIVE
11-SD-094-R11.08-LMSA, San Diego, CA
Built 1966 ADT: 20,200
INTERSTATE 8 WB
UnknownOver: HARBISON CANYON RD
11-SD-008-R25.69, San Diego, CA
Built 1966 ADT: 2,130
INTERSTATE 8 EB
UnknownOver: HARBISON CANYON RD
11-SD-008-R25.68, San Diego, CA
Built 1966 ADT: 2,130
INTERSTATE 5
UnknownOver: VINE STREET
11-SD-005-R17.99-SD, San Diego, CA
Built 1967 ADT: 1,000
INTERSTATE 5
UnknownOver: VINE STREET
11-SD-005-R17.99-SD, San Diego, CA
Built 1967 ADT: 1,000
S5-KETTNER OFFRAMP
UnknownOver: HANCOCK ST-S5 ON-RAMP
11-SD-005-R18.20-SD, San Diego, CA
Built 1967 ADT: 5,100
S5-KETTNER BLVD OF
UnknownOver: WASHINGTON STREET
11-SD-005-R18.28-SD, San Diego, CA
Built 1967 ADT: 29,356
INTERSTATE 5 SB
UnknownOver: WASHINGTON STREET
11-SD-005-R18.28-SD, San Diego, CA
Built 1967 ADT: 29,356
INTERSTATE 5 NB
UnknownOver: WASHINGTON STREET
11-SD-005-R18.28-SD, San Diego, CA
Built 1967 ADT: 29,356
OLD TOWN AVE
UnknownOver: INTERSTATE 5
11-SD-005-R19.03-SD, San Diego, CA
Built 1967 ADT: 191,000
INTERSTATE 5
UnknownOver: PACIFIC, ROSECRANS, LRT
11-SD-005-R19.41-SD, San Diego, CA
Built 1967 ADT: 27,230
N5-E8 CONNECTOR RP
UnknownOver: BNSF,AMTRAK,MTDB,PACIFIC
11-SD-005-R19.90-SD, San Diego, CA
Built 1969 ADT: 27,230
W8-S5&CDR CONNECT
UnknownOver: I-8,I-5,RAMPS,BNSF,AMTRA
11-SD-008-L2.34-SD, San Diego, CA
Built 1969 ADT: 23,250
CAMINO DEL RIO-E8
UnknownOver: I 5,BNSF,AMTRAK,MTDB LRT
11-SD-008-L2.35-SD, San Diego, CA
Built 1969 ADT: 86,400
BRADLEY AVE
UnknownOver: STATE ROUTE 67
11-SD-067-R1.12, San Diego, CA
Built 1966 ADT: 106,000
LEUCADIA BLVD
UnknownOver: INTERSTATE 5
11-SD-005-R42.71, San Diego, CA
Built 1965 ADT: 222,000
POINSETTIA LANE
UnknownOver: INTERSTATE 5
11-SD-005-R45.57-CBD, San Diego, CA
Built 1965 ADT: 222,000
PALOMAR AIRPORT RD
UnknownOver: INTERSTATE 5
11-SD-005-R47.03-CBD, San Diego, CA
Built 1966 ADT: 222,000
S67-W8 CONNECTOR
UnknownOver: STATE ROUTE 67 SB
11-SD-067-R0.16-ECJ, San Diego, CA
Built 1967 ADT: 32,000
S67-W8 CONNECTOR
UnknownOver: BROADWAY
11-SD-067-R0.31-ECJ, San Diego, CA
Built 1967 ADT: 28,600
E8-N67 CONNECTOR
UnknownOver: BROADWAY
11-SD-008-15.81-ECJ, San Diego, CA
Built 1985 ADT: 28,600
STATE ROUTE 67 SB
UnknownOver: BROADWAY
11-SD-067-R0.31-ECJ, San Diego, CA
Built 1967 ADT: 28,600
STATE ROUTE 67 NB
UnknownOver: BROADWAY
11-SD-067-R0.31-ECJ, San Diego, CA
Built 1985 ADT: 28,600
STATE ROUTE 67 SB
UnknownOver: RIVERFORD ROAD
11-SD-067-R3.91, San Diego, CA
Built 1970 ADT: 19,800
STATE ROUTE 67 NB
UnknownOver: RIVERFORD ROAD
11-SD-067-R3.91, San Diego, CA
Built 1970 ADT: 19,800
WINTER GARDENS BL
UnknownOver: STATE ROUTE 67
11-SD-067-R4.83, San Diego, CA
Built 1970 ADT: 63,000
STATE ROUTE 67 SB
UnknownOver: CHANNEL RD
11-SD-067-R5.19, San Diego, CA
Built 1970 ADT: 9,570
STATE ROUTE 67 NB
UnknownOver: CHANNEL RD
11-SD-067-R5.19, San Diego, CA
Built 1970 ADT: 9,570
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 163
11-SD-163-5.52-SD, San Diego, CA
Built 1970 ADT: 148,000
Showing 5,251-5,300 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 |