Interstate 115: Difference between revisions

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|maint=[[Montana Department of Transportation|MDOT]]
|maint=[[Montana Department of Transportation|MDOT]]
|length_mi=1.194
|length_mi=1.194
|length_ref=<ref name="MDT">{{cite web|url=http://www.mdt.mt.gov/publications/docs/brochures/2011_roadlog.pdf|title=Montana Road Log|year=2011|publisher=[[Montana Department of Transportation]]|accessdate=December 22, 2011}}</ref>
|length_ref=<ref name="MDT 1">[[#Log|Montana Road Log]], p.&nbsp;1</ref>
|established=1971
|established=1971
|direction_a=West
|direction_a=West
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==Route description==
==Route description==
Interstate 115 begins at an interchange with [[Interstate 15 in Montana|Interstate 15]] / [[Interstate 90]]. As a two-lane highway in both directions, I-115 heads east into downtown [[Butte, Montana|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 {{convert|1|mi}} from I-15/I-90, I-115 has its only interchange at Excelsior Avenue, which can be used to access the town of [[Walkerville, Montana|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 light|traffic signals]] for most exits in urban areas. I-115 ends at the overpass over Excelsior Avenue. It continues into [[Butte, Montana|Butte]] as [[Interstate 15 Business (Butte, Montana)|I-15 Bus.]] / [[Interstate 90 Business (Butte, Montana)|I-90 Bus.]].<ref name=maps>[[Google Maps]] street maps and [[United States Geological Survey|USGS]] [[topographic map]]s, accessed December 2007 via [http://mapper.acme.com/ ACME Mapper]</ref>
Interstate 115 begins at an interchange with [[Interstate 15 in Montana|Interstate 15]] / [[Interstate 90]]. As a two-lane highway in both directions, I-115 heads east into downtown [[Butte, Montana|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 {{convert|1|mi}} from I-15/I-90, I-115 has its only interchange at Excelsior Avenue, which can be used to access the town of [[Walkerville, Montana|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 light|traffic signals]] for most exits in urban areas. I-115 ends at the overpass over Excelsior Avenue. It continues into [[Butte, Montana|Butte]] as [[Interstate 15 Business (Butte, Montana)|I-15 Bus.]] / [[Interstate 90 Business (Butte, Montana)|I-90 Bus.]].<ref name="Google Maps">{{Google maps|url=https://maps.google.com/maps?saddr=Exit+124&daddr=W+Iron+St&hl=en&ll=46.000539,-112.556906&spn=0.035952,0.055189&sll=46.004057,-112.5524&sspn=0.018094,0.027595&geocode=FY_4vQIda0RK-Q%3BFfX1vQIdVa9K-Q&mra=mrv&t=h&z=14|accessdate=December 20, 2013}}</ref><ref name="MDT 22">[[#Log|Montana Road Log]], p.&nbsp;22</ref>


==History==
==History==
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{{Jctbtm|keys=incomplete}}
{{Jctbtm|keys=incomplete}}


⚫
==Footnotes==
{{reflist |group=lower-alpha}}
{{reflist |group=lower-alpha}}


==References==
==References==
⚫
;Footnotes
⚫
{{reflist}}

;References
⚫
{{reflist|2}}

;Bibliography
{{refbegin}}
* {{cite report |ref=Log |author=Staff |publisher=[[Montana Department of Transportation]] |url=http://www.mdt.mt.gov/publications/docs/brochures/2011_roadlog.pdf |format= PDF |title=Montana Road Log |year=2011 |edition=2011 |accessdate=December 20, 2013}}
{{refend}}


==External links==
==External links==

Revision as of 02:04, 20 December 2013

Interstate 115 marker

Interstate 115

Interstate 115 highlighted in red
Route information
Maintained by MDOT
Length1.194 mi[1] (1.922 km)
Existed1971–present
NHSEntire route
Major junctions
West end I-15 / I-90 in Butte
East end I-15 BL / I-90 BL in Butte
Location
CountryUnited States
StateMontana
Highway system
← I-94→ MT 117

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][3]

History

Map
Planning map for the Butte area freeways from 1955

The development of a freeway along the modern-day I-115 corridor was proposed in the 1950s. The 1955 General Location of National System of Interstate Highways, an early platform for what would become the Interstate Highway System, contained an inset of the proposed freeways in and around the city of Butte including an east-west freeway spur on the west side of the community.[4] Designated as part of the Interstate Highway System around 1957, I-115's construction was funded by the federal government.[5][a]

Exit list

The entire route is in Butte, Silver Bow County.

mi[8]kmExitDestinationsNotes
0.0000.000—

 I-15 south / I-90 west		Westbound exit and eastbound entrance only; Exit 124 on I-15
1.1941.9221Excelsior Avenue – Walkerville
1.1941.922

 I-15 BL north / I-90 BL east		Continuation beyond Excelsior Avenue
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  1. ^ I-115 was constructed and included in the Interstate Highway System before 1978. The Surface Transportation Assistance Act of 1978 provided that all Interstate construction authorized under previous amendments to the system would be funded by the federal government but additional highway mileage added under 23 U.S.C. § 103(c)(4)(A) would not be supported by the same allocation of funds.[6][7]

References

Footnotes
References
  1. ^ Montana Road Log, p. 1
  2. ^ Google (December 20, 2013). "Interstate 115" (Map). Google Maps. Google. Retrieved December 20, 2013.
  3. ^ Montana Road Log, p. 22
  4. ^ "Butte, Montana" (Map). General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955. 1 inch=1 mile. Cartography by BPR. Bureau of Public Roads. 1955. p. 51. OCLC 4165975. {{cite map}}: Unknown parameter |month= ignored (help)
  5. ^ DeSimone, Tony (October 31, 2002). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". Route Log and Finder List. Federal Highway Administration. OCLC 47914009. Retrieved December 20, 2013.
  6. ^ United States Congress (1978). Surface Transportation Assistance Act of 1978. Pub. L.Tooltip Public Law (United States) 99–599.
  7. ^ DeSimone, Tony (June 4, 2012). "Expansion of Mileage". Route Log and Finder List. Federal Highway Administration. OCLC 47914009. Retrieved December 20, 2013.
  8. ^ Cite error: The named reference MDT was invoked but never defined (see the help page).
Bibliography

External links

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