Interstate 115
Interstate 115 | ||||
|---|---|---|---|---|
 Interstate 115 highlighted in red | ||||
| Route information | ||||
| Maintained by MDOT | ||||
| Length | 1.194 mi[1] (1.922 km) | |||
| Existed | 1971–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end |   I-15 / I-90 in Butte | |||
| East end |   I-15 BL / I-90 BL in Butte | |||
| Location | ||||
| Country | United States | |||
| State | Montana | |||
| Highway system | ||||
| ||||
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Interstate 115 (I-115) is a short auxiliary Interstate Highway which connects Interstate 15/90 to Butte in the U.S. state of Montana. The highway is 1.19-mile-long (1.92 km) and is overlapped by Business Interstate 15/90 for its entire length. The route travels from an incomplete interchange with I-15/90 through generally rural areas in western Butte. It interchanges with Excelsior Avenue before terminating. The entire route was improved to interstate standards during the 1960s, and was improved in 2005.
Route description
Interstate 115 begins at an interchange with Interstate 15 / Interstate 90. As a two-lane highway in both directions, I-115 heads east into downtown Butte. Before reaching exit 1, eastbound traffic makes a curve while westbound traffic goes to Interstate 15/90 without making such a curve, therefore that portion of I-115 contains a large median. Approximately 1 mile (1.6 km) from I-15/I-90, I-115 has its only interchange at Excelsior Avenue, which can be used to access the town of Walkerville. Excelsior Avenue is the only numbered exit along I-115, and the structure of the interchange directs motorists to stop and yield signs, as opposed to traffic signals for most exits in urban areas. I-115 ends at the overpass over Excelsior Avenue. It continues into Butte as I-15 Bus. / I-90 Bus..[2]
History
![[icon]](/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section is empty. You can help by adding to it. (August 2012) |
Exit list
The entire route is in Butte, Silver Bow County.
| mi[1] | km | Exit | Destinations | Notes | |
|---|---|---|---|---|---|
| 0.000 | 0.000 | — |   I-15 south / I-90 west | Westbound exit and eastbound entrance only; Exit 124 on I-15 | |
| 1.194 | 1.922 | 1 | Excelsior Avenue – Walkerville | ||
| 1.194 | 1.922 |   I-15 BL north / I-90 BL east | Continuation beyond Excelsior Avenue | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | |||||
References
- ^ a b "Montana Road Log" (PDF). Montana Department of Transportation. 2011. Retrieved December 22, 2011.
- ^ Google Maps street maps and USGS topographic maps, accessed December 2007 via ACME Mapper
