Madison County, MT

84 public highway bridges

Madison County Bridge Snapshot

Madison County, Montana contains 84 public highway bridges in the FHWA National Bridge Inventory. Roughly 26.2% are rated “Good,” 53.6% “Fair,” 13.1% “Poor,” and 13.1% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MT are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

84
Total Bridges
26.2%
Good
13.1%
Poor
13.1%
Structurally Deficient

Condition Distribution

Good
26.2% (22)
Fair
53.6% (45)
Poor
13.1% (11)
SD
13.1% (11)

All Bridges (84)

US 287

Fair

Over: O`DELL CREEK

SE ENNIS, Madison, MT

Built 2001 Load: 63.5 t ADT: 4,210

SPANISH CREEK ROAD

Good

Over: SOUTH FORK SPANISH CREEK

SPANISH CREEK, Madison, MT

Built 1967 Load: 13.9 t ADT: 50

NO DATA ENTERED

Good

Over: NO DATA ENTERED

NO DATA ENTERED, Madison, MT

Built 2001 Load: 16.5 t ADT: 50

TAYLOR FORK ROAD

Good

Over: TAYLOR FORK CREEK

NO DATA ENTERED, Madison, MT

Built 2004 Load: 16.5 t ADT: 50

S BOULDER RD

Good

Over: LWR S BOULDER RIVER 066

5M S JEFFERSON ISLAND, Madison, MT

Built 2003 Load: 17.2 t ADT: 100

NO DATA ENTERED

Good

Over: COTTONWOOD CR

NO DATA ENTERED, Madison, MT

Built 2003 Load: 21.7 t ADT: 10

CHERRY CREEK RD

Good

Over: CHERRY CREEK 052

9M NE NORRIS, Madison, MT

Built 2009 Load: 22.7 t ADT: 100

JUDY LN

Good

Over: RUBY RIVER 025

2M S ALDER, Madison, MT

Built 2009 Load: 23.6 t ADT: 100

S BOULDER RD

Good

Over: LWR S BOULDER RIVER 054

5M S JEFFERSON ISLAND, Madison, MT

Built 2008 Load: 24.5 t ADT: 100

S 249 - VARNEY RD

Good

Over: MADISON RIVER

8M S ENNIS, Madison, MT

Built 2020 Load: 25.4 t ADT: 441

BURMA RD

Good

Over: BIG HOLE RIVER OVER 062

1M SE GLEN, Madison, MT

Built 2000 Load: 25.4 t ADT: 100

BEAR CREEK LOOP

Good

Over: INDIAN CREEK 043

21M S ENNIS, Madison, MT

Built 2001 Load: 28.1 t ADT: 77

FDR #100

Good

Over: RUBY RIVER

JUST SOUTH OF VIGILANTE G, Madison, MT

Built 1999 Load: 28.8 t ADT: 50

S 84

Good

Over: MADISON RIVER

7M NE NORRIS, Madison, MT

Built 1992 Load: 31.8 t ADT: 2,192

US 287

Good

Over: HOT SPRINGS CREEK

NORRIS, Madison, MT

Built 1997 Load: 32.7 t ADT: 3,827

US 287

Good

Over: MADISON RIVER OVERFLOW

ENNIS, Madison, MT

Built 2001 Load: 33.6 t ADT: 4,210

FS RTE 209

Good

Over: MADISON RIVER

MADISON RIVER, Madison, MT

Built 1964 Load: 34.0 t ADT: 40

JACK REEK RD

Good

Over: JACK CREEK 065

4M E ENNIS, Madison, MT

Built 2004 Load: 34.4 t ADT: 100

SILVERBOW LANE

Good

Over: BEAVERHEAD RIVER

8 M W SHERIDAN, Madison, MT

Built 2020 Load: 42.6 t ADT: 35

US 287

Good

Over: MADISON RIVER OVERFLOW

SE ENNIS, Madison, MT

Built 2001 Load: 42.6 t ADT: 4,210

US 287

Good

Over: MADISON RIVER OVERFLOW

SE ENNIS, Madison, MT

Built 2001 Load: 43.5 t ADT: 4,210

JACK CREEK RD

Good

Over: JACK CREEK 029

8M E ENNIS, Madison, MT

Built 2011 Load: 60.3 t ADT: 175

JACK CREEK RD

Good

Over: JACK CREEK 030

7M E ENNIS, Madison, MT

Built 2011 Load: 60.9 t ADT: 175

NO DATA ENTERED

Poor

Over: MIDDLE FK RUBY RIVER

M FK RUBY RIVER, Madison, MT

Built 1954 ADT: 50

FDR 160

Poor

Over: S.WILLOW CR.

S. WILLOW CR., Madison, MT

Built 1995 ADT: 2

SILVER SPRING RD

Poor

Over: RUBY RIVER 023

3M S SHERIDAN, Madison, MT

Built 1927 Load: 5.4 t ADT: 131

NO DATA ENTERED

Poor

Over: W FK MADISON RIVER

W FK MADISON RIVER, Madison, MT

Built 1947 Load: 20.4 t ADT: 50

FDR 209

Poor

Over: W FK MADISON RIVER

W FK MADISON RIVER, Madison, MT

Built 1957 Load: 23.0 t ADT: 35

S 287

Poor

Over: GRANITE CREEK

3M NW VIRGNIA CITY, Madison, MT

Built 1942 Load: 25.2 t ADT: 1,151

RUBY RD

Poor

Over: COTTONWOOD CR

COTTONWOOD CR, Madison, MT

Built 1954 Load: 26.6 t ADT: 50

JACK CREEK RD

Poor

Over: JACK CREEK 028

8M E ENNIS, Madison, MT

Built 1952 Load: 27.2 t ADT: 175

SEYLER LN

Poor

Over: RUBY RIVER 019

7M NW SHERIDAN, Madison, MT

Built 1976 Load: 32.7 t ADT: 100

FDR 209

Poor

Over: W FK MADISON RIVER

W FK MADISON RIVER, Madison, MT

Built 1970 Load: 33.4 t ADT: 30

S 287

Poor

Over: WEBER IRRIGATION CANAL

2M SW ENNIS, Madison, MT

Built 1950 Load: 35.4 t ADT: 2,257

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial