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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
GALLATIN RIVER Montana Fair 1965 62.8 m 9,726
CAMP CREEK Montana Good 1965 25.3 m 9,726
SEP HEEB ROAD Montana Good 1965 35.1 m 9,726
SEP THORPE ROAD Montana Fair 1965 34.7 m 9,726
SEP THORPE ROAD Montana Fair 1965 34.7 m 9,726
BAKER CREEK Montana Good 1965 28.3 m 9,726
INT W LAUREL-RR Montana Fair 2018 169.5 m 9,599
INT LAUREL-P 4-RR Montana Fair 1964 111.5 m 9,599
INT W LAUREL-RR Montana Good 2019 144.2 m 9,599
INT 27TH ST I 90 Montana Fair 1966 67.3 m 9,538
INT S LIVINGSTON-US HWY Montana Fair 1962 76.5 m 9,461
INT WEST LIVINGSTON Montana Fair 1962 35.1 m 9,461
INT WEST LIVINGSTON Montana Fair 1962 34.7 m 9,461
INT W BILLINGS-U 1010 Montana Good 1994 43.6 m 9,451
HOGAN SLOUGH Montana Fair 1959 25.0 m 9,451
INT W BILLINGS-U 1020 Montana Fair 1964 56.4 m 9,451
INT W BILLINGS-U 1020 Montana Good 1964 56.4 m 9,451
INT W BILLINGS-U 1010 Montana Good 1994 43.6 m 9,451
SWAN RIVER Montana Fair 1954 67.0 m 9,246
BLUE CREEK Montana Good 1972 36.6 m 9,226
YELLOWSTONE RIVER Montana Fair 1972 262.4 m 9,226
WILDLIFE UPASS-FINLEY CR Montana Good 2009 8.0 m 9,214
WILDLIFE UNDERPASS Montana Good 2009 8.2 m 9,214
WILDLIFE UNDERPASS Montana Good 2009 7.7 m 9,214
WILDLIFE UPASS-SCHLEY CR Montana Good 2009 8.0 m 9,214
WILDLIFE UNDERPASS Montana Fair 2009 9.7 m 9,214
WILDLIFE CROSSING Montana Good 2009 9.4 m 9,214
RR-FINLEY CREEK Montana Fair 2009 104.9 m 9,214
WILDLIFE UNDERPASS Montana Good 2009 8.0 m 9,214
BBWA CANAL Montana Good 1974 14.0 m 9,172
CLARK FORK RIVER Montana Poor 1964 299.2 m 9,168
CHURN CREEK Montana Fair 1990 9.6 m 9,107
EAST GALLATIN RIVER Montana Fair 1990 24.4 m 9,107
ASHLEY CREEK Montana Good 2010 44.4 m 8,967
SPANISH CREEK Montana Fair 1931 21.3 m 8,952
GALLATIN RIVER Montana Fair 1950 71.3 m 8,952
GALLATIN RIVER Montana Fair 1952 48.8 m 8,952
SWAN CREEK Montana Fair 2009 17.7 m 8,952
WEST FORK GALLATIN RIVER Montana Fair 2009 29.7 m 8,952
RR-S 205 Montana Fair 1994 96.5 m 8,938
FLOWER CREEK Montana Good 1970 7.9 m 8,882
YELLOWSTONE RIVER Montana Fair 1958 403.1 m 8,821
WILDLIFE UNDERPASS Montana Good 2006 6.9 m 8,775
JOCKO RIVER Montana Good 2005 121.7 m 8,775
SPRING CREEK Montana Good 2006 30.3 m 8,775
WILDLIFE UNDERPASS Montana Good 2006 6.9 m 8,775
WILDLIFE UPASS-DRAINAGE Montana Good 2006 7.7 m 8,775
JOCKO RIVER SIDE CHANNEL Montana Fair 2006 30.0 m 8,775
MILL DITCH Montana Fair 1922 7.6 m 8,747
S FORK FLATHEAD RIVER Montana Good 2018 257.1 m 8,735

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.