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.
| Bridge | Location | Condition | Year Built | Length | ADT |
|---|---|---|---|---|---|
| PROSPECT CREEK | Montana | Fair | 1979 | 29.0 m | 138 |
| HARPER`S COULEE | Montana | Fair | 1954 | 11.9 m | 137 |
| SMITH CREEK | Montana | Fair | 1958 | 23.2 m | 137 |
| WOLF CREEK | Montana | Good | 1977 | 25.9 m | 137 |
| ELK CREEK | Montana | Fair | 1958 | 11.9 m | 137 |
| OTTER CREEK | Montana | Fair | 1957 | 12.2 m | 136 |
| ROCK CR | Montana | Poor | 1970 | 14.1 m | 136 |
| SHEEP CREEK 003 | Montana | Fair | 1979 | 21.3 m | 133 |
| RUBY RIVER 023 | Montana | Poor | 1927 | 11.3 m | 133 |
| WILLOW CREEK | Montana | Fair | 1949 | 7.9 m | 133 |
| WHITETAIL CREEK | Montana | Fair | 2004 | 24.4 m | 132 |
| USBR MAIN CANAL 051 | Montana | Good | 1992 | 18.3 m | 132 |
| S FORK WHITETAIL CREEK | Montana | Fair | 1999 | 8.6 m | 132 |
| EF PIPE CR | Montana | Fair | 1994 | 6.2 m | 132 |
| SPOTTED BEAR RIVER | Montana | Fair | 1967 | 46.9 m | 130 |
| SMITH RIVER | Montana | Fair | 1975 | 46.9 m | 130 |
| CLARK FORK RIVER 002 | Montana | Poor | 1986 | 51.8 m | 130 |
| DUCK CREEK | Montana | Fair | 1980 | 9.2 m | 129 |
| S FORK MILK RIVER | Montana | Fair | 1973 | 46.0 m | 129 |
| YELLOWSTONE RIVER 010 | Montana | Fair | 2000 | 130.0 m | 129 |
| CROW CREEK 070 | Montana | Poor | 1986 | 9.2 m | 128 |
| INT E ROSEBUD I 94 003 | Montana | Fair | 1970 | 100.9 m | 128 |
| GRAVEYARD CREEK 055 | Montana | Poor | 1928 | 12.5 m | 128 |
| SWEENEY CREEK 064 | Montana | Poor | 1930 | 34.7 m | 128 |
| BUTTE CREEK 041 | Montana | Fair | 2015 | 27.8 m | 128 |
| REDWATER RIVER | Montana | Fair | 1962 | 59.2 m | 127 |
| HELL CREEK | Montana | Fair | 1962 | 12.2 m | 127 |
| MILK RIVER 014 | Montana | Good | 1997 | 59.9 m | 126 |
| FORT BELKNAP CANAL 015 | Montana | Fair | 1933 | 12.5 m | 126 |
| BIG DITCH 109 | Montana | Fair | 1936 | 9.4 m | 125 |
| JOCKO RIVER 056 | Montana | Good | 2012 | 49.0 m | 124 |
| BIG SPRING CREEK | Montana | Good | 1999 | 27.0 m | 123 |
| MILK RIVER | Montana | Fair | 1969 | 92.7 m | 123 |
| LTL PRICKLY PEAR CR 097 | Montana | Good | 1952 | 8.3 m | 122 |
| SUPPLY DITCH 065 | Montana | Good | 1994 | 7.8 m | 122 |
| DRAINAGE DITCH 191 | Montana | Good | 1980 | 10.7 m | 122 |
| BEAN CREEK | Montana | Fair | 1957 | 12.0 m | 121 |
| SNAKE CREEK | Montana | Fair | 1957 | 11.9 m | 121 |
| ALKALI CREEK | Montana | Fair | 1966 | 34.4 m | 121 |
| S FORK MCDONALD CR | Montana | Good | 2021 | 19.8 m | 120 |
| S FORK MCDONALD CREEK | Montana | Good | 2021 | 18.4 m | 120 |
| LOWER TWIN CREEK | Montana | Good | 1965 | 33.5 m | 120 |
| UPPER TWIN CR | Montana | Good | 1965 | 33.5 m | 120 |
| VALIER CANAL 035 | Montana | Good | 1950 | 14.3 m | 120 |
| WHITEWATER CREEK | Montana | Fair | 2001 | 49.6 m | 120 |
| S FORK MCDONALD CR 046 | Montana | Fair | 1986 | 9.8 m | 120 |
| S FORK MCDONALD CR 070 | Montana | Fair | 1982 | 12.5 m | 120 |
| S FORK MCDONALD CR 071 | Montana | Fair | 1970 | 10.1 m | 120 |
| S FORK MCDONALD CR 072 | Montana | Good | 2011 | 24.4 m | 120 |
| AUTOMATIC CREEK 036 | Montana | Fair | 1951 | 33.2 m | 119 |
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.