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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
MADISON RIVER Montana Fair 2001 98.3 m 4,500
O`DELL CREEK Montana Fair 2001 43.0 m 4,500
MADISON RIVER OVERFLOW Montana Good 2001 28.2 m 4,500
MADISON RIVER OVERFLOW Montana Good 2001 20.3 m 4,500
SECOND HAY CREEK Montana Good 1986 8.8 m 4,499
FIRST HAY CREEK Montana Fair 1986 33.4 m 4,499
INT GORE HILL-I 15 Montana Fair 1967 73.4 m 4,478
FRENCH DITCH Montana Fair 1982 11.8 m 4,477
INT DUNMORE Montana Fair 1959 36.3 m 4,473
INT DUNMORE Montana Fair 1959 36.3 m 4,473
DICKIE ROAD Montana Good 1967 46.9 m 4,471
DICKIE ROAD Montana Fair 1967 50.0 m 4,471
BAD ROUTE CREEK Montana Fair 1973 17.7 m 4,438
CANYON CREEK Montana Fair 1959 47.5 m 4,412
JONES CREEK-STOCKPASS Montana Fair 1962 7.4 m 4,393
SEP EASTSIDE ROAD Montana Fair 1961 51.2 m 4,371
SEP MILWAUKEE AVENUE Montana Fair 1961 36.0 m 4,371
INT N DEER LODGE Montana Fair 1974 37.9 m 4,371
SEP EASTSIDE ROAD Montana Fair 1974 43.6 m 4,371
INT N DEER LODGE Montana Fair 1961 37.9 m 4,371
SEP MILWAUKEE AVENUE Montana Fair 1974 36.0 m 4,371
INT W DRUMMOND Montana Fair 1966 38.1 m 4,361
SEP EDWARDS GULCH ROAD Montana Good 1966 39.0 m 4,361
INT W DRUMMOND Montana Fair 1966 38.1 m 4,361
SEP EDWARDS GULCH ROAD Montana Good 1966 39.6 m 4,361
IRRIGATION CANAL Montana Good 1997 11.9 m 4,348
PRICKLY PEAR CREEK 080 Montana Good 1958 10.1 m 4,338
HUNTLEY CANAL Montana Fair 1967 21.9 m 4,332
PRYOR CREEK Montana Good 2011 56.0 m 4,332
CLEAR CREEK Montana Poor 1973 16.0 m 4,317
CRACKER BOX CREEK Montana Fair 1973 10.4 m 4,317
ROCK CREEK Montana Good 1967 9.2 m 4,290
DOG CREEK Montana Fair 1967 7.0 m 4,290
LITTLE WOLF CREEK Montana Fair 1988 10.1 m 4,269
MOSQUITO CREEK Montana Fair 1986 12.4 m 4,269
ABANDONED RAILROAD Montana Fair 1914 21.8 m 4,262
SARPY ROAD-S 384 Montana Fair 1971 36.6 m 4,258
SARPY ROAD-S 384 Montana Fair 1971 36.6 m 4,258
BIGHORN RIVER Montana Fair 1971 180.9 m 4,258
BIGHORN RIVER Montana Good 1971 180.9 m 4,258
INT NORTH DILLON I 15 Montana Fair 1973 89.8 m 4,241
LOCAL-BLACKTAIL CR-RR Montana Fair 1974 98.1 m 4,241
PRYOR CREEK Montana Fair 1969 78.0 m 4,235
OLD HARDIN RD Montana Fair 1969 46.3 m 4,235
OLD HARDIN RD Montana Fair 1969 46.3 m 4,235
WHOOPUP CREEK Montana Fair 1976 9.0 m 4,221
SAND CREEK Montana Fair 1976 12.5 m 4,221
HELENA VALLEY CANAL Montana Good 2000 11.9 m 4,190
SOUTH WILLOW CREEK Montana Poor 1934 11.9 m 4,102
MADISON RIVER Montana Fair 1968 42.1 m 4,098

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.