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.

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BridgeLocationConditionYear BuiltLengthADT
CLARK FORK RIVER 034 Montana Fair 1970 51.8 m 272
TOBACCO RIVER 134 Montana Good 1993 25.9 m 271
MARIAS RIVER Montana Fair 1966 106.0 m 270
JEFFERSON RIVER 017 Montana Fair 1973 88.6 m 269
JEFFERSON RIV OVRFLW 016 Montana Fair 1977 18.3 m 269
SPRING CREEK Montana Good 1968 28.7 m 267
LITTLE MUDDY CREEK Montana Good 2020 37.7 m 267
LITTLE MUDDY CREEK Montana Fair 2020 43.2 m 267
DRAINAGE Montana Good 2020 6.9 m 267
DRY CREEK 119 Montana Fair 2009 9.3 m 265
JUDITH RIVER Montana Good 2020 63.1 m 265
DRY WOLF CREEK Montana Fair 1949 17.4 m 265
YELLOWSTONE RIVER Montana Fair 1964 172.8 m 265
WHITEBIRD CREEK 049 Montana Fair 1998 8.5 m 263
INT W WIBAUX-I 94 Montana Fair 1962 73.3 m 263
SIX MILE CREEK Montana Good 2006 25.0 m 262
EMIGRANT CREEK Montana Fair 2006 20.3 m 262
LONE TREE CREEK 033 Montana Fair 1993 18.3 m 261
VERMILLION RIVER Montana Fair 1972 44.2 m 261
SAGE CREEK Montana Fair 1968 31.4 m 260
ELK CREEK 119 Montana Fair 1935 24.4 m 260
SPRING CREEK COULEE 124 Montana Fair 1982 6.1 m 260
DRY CREEK 122 Montana Fair 1935 23.8 m 260
INT BRADY-I 15 Montana Good 1964 92.3 m 260
CYCLONE CREEK Montana Good 1994 14.7 m 260
RED TOP CREEK Montana Good 1994 16.7 m 260
CLARKS FK YELLOWSTNE 055 Montana Fair 1980 87.8 m 260
HELLROARING CREEK Montana Good 1994 26.0 m 260
MEADOW CREEK Montana Good 1994 27.4 m 260
YELLOWSTONE RIVER Montana Fair 1970 208.2 m 257
RR Montana Fair 1970 62.5 m 257
MILL CREEK 004 Montana Good 2015 15.7 m 257
MILK RIVER Montana Poor 1967 66.1 m 256
RED ROCK CREEK Montana Fair 1967 26.2 m 256
RUBY RIVER 021 Montana Fair 1975 12.8 m 252
PEOPLES CREEK Montana Good 2000 14.0 m 250
BOX ELDER CREEK Montana Good 1997 7.9 m 250
BIRNEY CREEK Montana Good 2007 6.6 m 250
EMERY CREEK Montana Fair 1965 11.0 m 250
YELLOWSTONE RIVER 043 Montana Fair 1960 110.9 m 247
MILL CREEK 044 Montana Fair 1972 29.9 m 247
MUSSELSHELL RIVER Montana Fair 1949 45.7 m 247
DRY CREEK Montana Fair 1970 11.4 m 246
LEE CREEK Montana Fair 1935 63.9 m 246
COTTONWOOD CREEK 083 Montana Good 2007 11.0 m 245
MCDONALD CREEK Montana Fair 1941 38.0 m 245
WOLF CREEK Montana Fair 1934 17.9 m 244
SUN RIVER 055 Montana Good 2001 86.0 m 244
TWO MEDICINE RIVER Montana Poor 1968 96.9 m 243
CLARK FORK RIVER 032 Montana Fair 1982 61.0 m 242

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.