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 |
|---|---|---|---|---|---|
| LITTLE BELT CREEK 099 | Montana | Fair | 1950 | 7.2 m | 158 |
| LITTLE BELT CREEK 003 | Montana | Fair | 1938 | 9.8 m | 158 |
| BUTTE CREEK | Montana | Fair | 1950 | 23.5 m | 158 |
| BOULDER RIVER 003 | Montana | Good | 2017 | 38.4 m | 157 |
| BOULDER RIVER 002 | Montana | Fair | 1931 | 34.1 m | 157 |
| BOULDER RIVER | Montana | Poor | 1950 | 9.2 m | 157 |
| BOULDER RIVER | Montana | Fair | 1940 | 10.7 m | 157 |
| BIG HOLE RIVER 036 | Montana | Fair | 1978 | 73.8 m | 157 |
| BOULDER RIVER 040 | Montana | Fair | 1938 | 26.2 m | 157 |
| FOUR MILE CREEK 039 | Montana | Fair | 1938 | 9.4 m | 157 |
| BOULDER RIVER 041 | Montana | Poor | 1933 | 30.2 m | 157 |
| MUSSELSHELL RIVER | Montana | Good | 1960 | 58.8 m | 157 |
| SPECULATOR CREEK 011 | Montana | Fair | 1965 | 8.2 m | 157 |
| MILLER CREEK 001 | Montana | Fair | 1965 | 8.2 m | 157 |
| BYNUM RESEVOIR CANAL 002 | Montana | Good | 1982 | 20.4 m | 155 |
| BELT CREEK 084 | Montana | Fair | 1938 | 47.2 m | 155 |
| PARROT DITCH | Montana | Good | 2023 | 6.8 m | 154 |
| SPRING COULEE | Montana | Fair | 1950 | 13.7 m | 154 |
| BIG MUDDY CREEK | Montana | Fair | 1956 | 33.5 m | 153 |
| WOODY ISLAND CREEK | Montana | Good | 1981 | 38.1 m | 153 |
| TIMBER CREEK | Montana | Fair | 1960 | 62.7 m | 153 |
| NELSON CREEK | Montana | Fair | 1963 | 40.9 m | 153 |
| DRAINAGE | Montana | Fair | 1955 | 11.9 m | 152 |
| BIG MUDDY CREEK OVERFLOW | Montana | Fair | 1949 | 34.7 m | 151 |
| BIG MUDDY CREEK | Montana | Fair | 1949 | 46.0 m | 151 |
| ROCK CREEK 013 | Montana | Fair | 1931 | 10.7 m | 150 |
| TWELVEMILE CREEK 014 | Montana | Fair | 1931 | 10.7 m | 150 |
| DEEP COULEE | Montana | Fair | 1938 | 6.5 m | 150 |
| MEDICINE TAIL COULEE | Montana | Poor | 1938 | 14.0 m | 150 |
| ROCKY CREEK 044 | Montana | Fair | 1976 | 8.8 m | 149 |
| FLY CREEK 002 | Montana | Good | 2016 | 42.1 m | 147 |
| MILL CREEK 018 | Montana | Fair | 1940 | 17.5 m | 147 |
| SAND COULEE 003 | Montana | Fair | 1940 | 17.7 m | 147 |
| BULL MOUNTAIN CREEK 019 | Montana | Fair | 1940 | 17.6 m | 147 |
| ROUGH COULEE 033 | Montana | Fair | 1940 | 17.8 m | 147 |
| SPRING CREEK 035 | Montana | Fair | 1940 | 17.6 m | 147 |
| DRAINAGE | Montana | Fair | 1948 | 7.9 m | 145 |
| GREASEWOOD CREEK 033 | Montana | Fair | 1979 | 15.7 m | 142 |
| BIG PORCUPINE CR 034 | Montana | Fair | 1977 | 26.5 m | 142 |
| WARM SPRINGS CREEK 006 | Montana | Good | 2015 | 15.8 m | 142 |
| NINEMILE SLIDE 026 | Montana | Poor | 1947 | 114.3 m | 141 |
| NINEMILE CREEK 035 | Montana | Poor | 1924 | 37.8 m | 141 |
| CLEAR CREEK 095 | Montana | Fair | 1985 | 12.2 m | 141 |
| STILLWATER RIVER 082 | Montana | Fair | 1988 | 44.6 m | 141 |
| LITTLE BOX ELDER CR 033 | Montana | Fair | 1974 | 9.4 m | 141 |
| CLARK FK-RR 060 | Montana | Fair | 1942 | 239.8 m | 140 |
| ST REGIS RIVER 059 | Montana | Poor | 1937 | 59.3 m | 140 |
| LITTLE POWDER RIVER | Montana | Fair | 1974 | 55.8 m | 139 |
| SAND CREEK 042 | Montana | Fair | 2012 | 23.7 m | 139 |
| PROSPECT CREEK | Montana | Fair | 1979 | 29.0 m | 138 |
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.