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Browse Bridge Database

5,235 bridges in the FHWA National Bridge Inventory in Montana.

National Bridge Inventory Database

Browse 5,235 bridges from the Federal Highway Administration National Bridge Inventory. Filter by state, condition rating, or search by name and location.

Clear
BridgeLocationConditionYear BuiltLengthADT
CLARK FORK R FLOOD PLAIN Montana Fair 1977 101.8 m 35,914
CLARK FORK RIVER Montana Fair 1975 253.5 m 35,914
W BROADWAY ST-RR Montana Fair 1998 149.3 m 29,572
MT Power RR Spur Montana Good 2023 16.5 m 29,488
BITTERROOT RIVER Montana Fair 1968 105.7 m 28,185
CITY COUNTY DRAIN DITCH Montana Fair 1966 7.0 m 27,985
GRANT CREEK Montana Good 1965 9.9 m 27,328
BBWA CANAL Montana Fair 1994 15.8 m 26,602
INT N 7TH AVE-I 90 Montana Fair 2014 61.0 m 26,020
STILLWATER RIVER Montana Fair 1996 58.2 m 25,919
HYALITE CREEK Montana Fair 1956 9.9 m 25,670
MISSOURI RIVER-PED TRAIL Montana Good 1980 293.8 m 24,549
INT N 19TH AVE Montana Fair 1994 104.2 m 23,992
RR Montana Good 2007 49.0 m 23,980
RR Montana Fair 2007 49.2 m 23,980
CLARK FORK RIVER Montana Good 2020 141.3 m 23,274
INT LOCKWOOD I 90 Montana Fair 1966 84.1 m 23,199
RR Montana Fair 1993 81.4 m 23,199
YELLOWSTONE RIVER Montana Fair 1993 172.5 m 23,199
US 2 Montana Good 2016 59.1 m 22,752
CLARK FORK RIVER Montana Fair 2003 151.4 m 22,608
PEDESTRIAN-BIKE PATH Montana Good 2002 6.8 m 22,608
FLATHEAD RIVER Montana Fair 1977 148.9 m 22,220
RATTLESNAKE CREEK Montana Fair 1964 20.4 m 21,390
WALKING PATH Montana Fair 2011 9.7 m 21,232
LOLO CREEK Montana Good 1965 37.5 m 20,994
GREAT NORTHERN AREA Montana Good 2003 6.1 m 20,397
FOYS LAKE ROAD Montana Good 2021 29.8 m 19,966
ASHLEY CREEK Montana Good 2010 33.4 m 19,966
OLD RESERVE DRIVE Montana Good 2016 57.2 m 19,964
BELL CREEK Montana Fair 1963 9.7 m 19,755
RR Montana Good 1978 84.1 m 19,327
RR Montana Good 2003 43.9 m 18,569
CLARK FORK RIVER Montana Fair 1958 168.2 m 18,393
ASHLEY CREEK Montana Fair 2001 31.5 m 18,053
BBWA CANAL Montana Fair 1978 16.2 m 17,985
INT CUSTER AVE-I 15 Montana Good 2012 72.7 m 16,988
WHITEFISH RIVER Montana Good 1959 18.3 m 16,086
PABLO FEEDER CANAL Montana Good 2006 6.6 m 15,997
BBWA CANAL Montana Fair 1981 15.5 m 15,881
MILL CREEK Montana Good 2011 24.8 m 15,852
SEP BILLINGS BLVD-I 90 Montana Fair 1963 65.5 m 15,780
INT AIRWAY BLVD Montana Fair 2014 45.3 m 15,554
SEP VALLEY CENTER SPUR Montana Fair 1966 34.7 m 15,554
SEP E VALLEY CENTER SPUR Montana Fair 1966 34.7 m 15,554
INT AIRWAY BLVD Montana Fair 2014 45.3 m 15,554
PRICKLY PEAR CREEK Montana Good 1978 23.5 m 15,333
INT VAN BUREN STREET Montana Good 1964 50.3 m 15,284
GREENOUGH DR-RATTLESNAKE Montana Fair 1966 74.6 m 15,284
INT VAN BUREN STREET Montana Fair 1964 50.3 m 15,284

Frequently Asked Questions

The National Bridge Inventory (NBI) is a federal database maintained by the Federal Highway Administration containing inspection data for all bridges on public roads in the U.S. with a span of more than 20 feet. Bridge owners must inspect each structure at least every 24 months.

ADT stands for Average Daily Traffic — the average number of vehicles crossing the bridge per day. Bridges are sorted by ADT by default because high-traffic bridges in poor condition pose the greatest risk to the most people.

Yes. Use the search field above to find bridges by name, location, or features crossed. You can also combine the search with state and condition filters to narrow your results.