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 680
UnknownOver: RUDGEAR ROAD
04-CC-680-R12.61-WLC, Contra Costa, CA
Built 1964 ADT: 3,140
INTERSTATE 80 WB
UnknownOver: CUTTING BLVD
04-CC-080-2.04-RCH, Contra Costa, CA
Built 1997 ADT: 23,140
INTERSTATE 80 EB
UnknownOver: CUTTING BLVD
04-CC-080-2.04-RCH, Contra Costa, CA
Built 1997 ADT: 23,140
INTERSTATE 80
UnknownOver: MACDONALD AVE & E80 OFF
04-CC-080-2.62-RCH, Contra Costa, CA
Built 1956 ADT: 4,420
E80-MACDONALD OFF
UnknownOver: MACDONALD AVE & E80 OFF
04-CC-080-2.59-RCH, Contra Costa, CA
Built 1979 ADT: 4,420
INTERSTATE 80
UnknownOver: BARRETT AVENUE
04-CC-080-2.82-RCH, Contra Costa, CA
Built 1956 ADT: 18,550
E80-SAN PABLO OFF
UnknownOver: BARRETT AVENUE
04-CC-080-2.82-RCH, Contra Costa, CA
Built 1997 ADT: 18,550
INTERSTATE 80
UnknownOver: SAN PABLO AVENUE
04-CC-080-2.96-RCH, Contra Costa, CA
Built 1956 ADT: 19,200
W80-BARRETT OFFRMP
UnknownOver: SAN PABLO AVENUE
04-CC-080-2.97-RCH, Contra Costa, CA
Built 1964 ADT: 19,200
SOLANO AVENUE
UnknownOver: INTERSTATE 80
04-CC-080-3.40-RCH, Contra Costa, CA
Built 1996 ADT: 179,000
MCBRYDE AVENUE
UnknownOver: INTERSTATE 80
04-CC-080-3.80-RCH, Contra Costa, CA
Built 1997 ADT: 179,000
SAN PABLO DAM ROAD
UnknownOver: INTERSTATE 80
04-CC-080-4.34-SPB, Contra Costa, CA
Built 1956 ADT: 179,000
W24-CAMINO PABLO
UnknownOver: CAMINO PABLO
04-CC-024-R2.31-ORIN, Contra Costa, CA
Built 1969 ADT: 4,460
STATE ROUTE 24 WB
UnknownOver: CAMINO PABLO
04-CC-024-R2.31-ORIN, Contra Costa, CA
Built 1969 ADT: 4,460
STATE ROUTE 24 EB
UnknownOver: CAMINO PABLO
04-CC-024-R2.31-ORIN, Contra Costa, CA
Built 1954 ADT: 4,460
INTERSTATE 680
UnknownOver: MONUMENT BOULEVARD
04-CC-680-R17.70-PLHL, Contra Costa, CA
Built 1998 ADT: 35,000
SR 24 WB RAMP
UnknownOver: PLEASANT HILL ROAD
04-CC-024-R7.66-LFYT, Contra Costa, CA
Built 1970 ADT: 45,700
SR 24 WB
UnknownOver: PLEASANT HILL ROAD
04-CC-024-R7.66-LFYT, Contra Costa, CA
Built 1970 ADT: 45,700
SR 24 EB
UnknownOver: PLEASANT HILL ROAD
04-CC-024-R7.66-LFYT, Contra Costa, CA
Built 1971 ADT: 45,700
SR 24 EB RAMP
UnknownOver: PLEASANT HILL ROAD
04-CC-024-R7.66-LFYT, Contra Costa, CA
Built 1971 ADT: 45,700
OAKLEY ROAD
UnknownOver: STATE ROUTE 160
04-CC-160-0.48, Contra Costa, CA
Built 1971 ADT: 23,900
STATE ROUTE 24
UnknownOver: ACALANES ROAD
04-CC-024-R4.40-LFYT, Contra Costa, CA
Built 1969 ADT: 16,700
STATE ROUTE 24 WB
UnknownOver: ACALANES ROAD
04-CC-024-R4.40-LFYT, Contra Costa, CA
Built 1969 ADT: 16,700
STATE ROUTE 24 EB
UnknownOver: ACALANES ROAD
04-CC-024-R4.40-LFYT, Contra Costa, CA
Built 1959 ADT: 16,700
E24 & ACALANES RD
UnknownOver: ACALANES ROAD
04-CC-024-R4.40-LFYT, Contra Costa, CA
Built 1959 ADT: 16,700
ST STEPHENS DRIVE
UnknownOver: STATE ROUTE 24 & BARTD
04-CC-024-R3.47-ORIN, Contra Costa, CA
Built 1969 ADT: 159,000
INTERSTATE 80
UnknownOver: CENTRAL AVENUE
04-CC-080-0.22-RCH, Contra Costa, CA
Built 1958 ADT: 28,350
OAK PARK BLVD
UnknownOver: I 680, N MAIN STREET
04-CC-680-16.88-PLHL, Contra Costa, CA
Built 1982 ADT: 18,000
OAKVALE ROAD
UnknownOver: INTERSTATE 680
04-CC-680-14.56-WLC, Contra Costa, CA
Built 1997 ADT: 40,000
S680-W24 CONNECTOR
UnknownOver: YGNACIO VALLEY ROAD
04-CC-680-14.85-WLC, Contra Costa, CA
Built 1994 ADT: 66,100
INTERSTATE 680 SB
UnknownOver: YGNACIO VALLEY ROAD
04-CC-680-14.85-WLC, Contra Costa, CA
Built 1995 ADT: 66,100
INTERSTATE 680 NB
UnknownOver: YGNACIO VALLEY ROAD
04-CC-680-14.85-WLC, Contra Costa, CA
Built 1995 ADT: 66,100
INTERSTATE 680
UnknownOver: PARKSIDE DRIVE
04-CC-680-15.24-WLC, Contra Costa, CA
Built 1960 ADT: 12,800
NORTH MAIN STREET
UnknownOver: INTERSTATE 680
04-CC-680-15.61-WLC, Contra Costa, CA
Built 1996 ADT: 257,000
TREAT BOULEVARD
UnknownOver: INTERSTATE 680
04-CC-680-16.40, Contra Costa, CA
Built 1982 ADT: 257,000
INTERSTATE 80
UnknownOver: PINOLE VALLEY ROAD
04-CC-080-8.51-PIN, Contra Costa, CA
Built 1957 ADT: 19,900
INTERSTATE 80
UnknownOver: EL PORTAL DRIVE
04-CC-080-5.25, Contra Costa, CA
Built 1956 ADT: 24,500
INTERSTATE 80
UnknownOver: CARLSON BLVD
04-CC-080-1.00-RCH, Contra Costa, CA
Built 1960 ADT: 14,920
EL CURTOLA BLVD
UnknownOver: STATE ROUTE 24 & BARTD
04-CC-024-R8.27, Contra Costa, CA
Built 1971 ADT: 159,000
S680-W24 CONNECTOR
UnknownOver: N680-W24, CAMINO DIABLO
04-CC-680-14.40-WLC, Contra Costa, CA
Built 1997 ADT: 5,000
E24/N680 CONNECTOR
UnknownOver: N680/W24 CONN,I-680,C.D.
04-CC-024-R8.86-WLC, Contra Costa, CA
Built 1998 ADT: 30,000
E24-S680 CONNECTOR
UnknownOver: BOULEVARD WAY
04-CC-024-R8.77-WLC, Contra Costa, CA
Built 1994 ADT: 9,970
INTERSTATE 680 SB
UnknownOver: MT DIABLO BOULEVARD
04-CC-680-14.22-WLC, Contra Costa, CA
Built 1995 ADT: 33,500
INTERSTATE 680 NB
UnknownOver: MT DIABLO BOULEVARD
04-CC-680-14.22-WLC, Contra Costa, CA
Built 1998 ADT: 33,500
N680-W24 CONNECTOR
UnknownOver: OLYMPIC BLVD,I-680
04-CC-680-14.15-WLC, Contra Costa, CA
Built 1998 ADT: 5,900
STATE ROUTE 24
UnknownOver: HAPPY VALLEY ROAD
04-CC-024-R5.97-LFYT, Contra Costa, CA
Built 1970 ADT: 11,400
STATE ROUTE 24
UnknownOver: HAPPY VALLEY ROAD
04-CC-024-R5.97-LFYT, Contra Costa, CA
Built 1957 ADT: 11,400
STATE ROUTE 24
UnknownOver: OAK HILL ROAD
04-CC-024-R6.26-LFYT, Contra Costa, CA
Built 1970 ADT: 11,400
STATE ROUTE 24
UnknownOver: OAK HILL ROAD
04-CC-024-R6.26-LFYT, Contra Costa, CA
Built 1971 ADT: 11,400
STATE ROUTE 24
UnknownOver: EL NIDO RANCH RD,AQUEDUC
04-CC-024-R4.90-LFYT, Contra Costa, CA
Built 1969 ADT: 3,870
Showing 501-550 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 |