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Interstate 115: Wikis

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I-115 (big).svg
Interstate 115
Auxiliary route of the Interstate Highway System
Length: 1.19 mi (1.92 km)
Formed: 1971
West end: I-15 / I-90 in Butte
East end: I-15 Bus. / I-90 Bus. in Downtown Butte
Montana Highways
< I-94 MT 117 >

Interstate 115 (I-115) is a 1.19-mile (1.92 km) interstate in Butte, Montana that connects Interstate 15 and Interstate 90 to Business 15/90 in downtown Butte. It is a short spur that directs motorists into downtown Butte and continues as Iron Street. Unlike Interstate 315 in Great Falls which is signed as Business Loop 15 cosigning with U.S. Route 89, Interstate 115 is actually signed as such. It is co-signed with Business 15/90 eastbound and Interstate 15 and Interstate 90 westbound.

Contents

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. About a half mile from I-15/I-90, I-115 makes an interchange at exit 1, 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. After interchanging with Excelsior Avenue, I-115 continues as a freeway for about 1.3 more miles, then downgrades into a regular city street as the grassy median disappears. I-115 ends shortly before apporaching the three-way intersection with Clark Street (I-15 Bus. / I-90 Bus.) in Downtown Butte.[1]

Exit list

The entire route is in Butte, Silver Bow County.

Mile
# Destinations Notes
0.00 I-15 south / I-90 west Westbound exit and eastbound entrance
1 Excelsior Avenue – Walkerville
1.19 Clark Street At-grade intersection
1.19 Iron Street (I-15 Bus., I-90 Bus.)

References

  1. ^ Google Maps street maps and USGS topographic maps, accessed December 2007 via ACME Mapper

External links

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