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Interstate 15 Business (I-15 Bus.) is a
I-15 Bus. begins at I-15 exit 278 in an unincorporated area of Cascade County, a short distance southwest of Great Falls. At the
business loop
A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or t ...
of Interstate 15 (I-15) in Cascade County, Montana, United States, almost entirely within Great Falls. The route links I-15 (which bypasses downtown Great Falls to the west) with the center of Great Falls. As its business loop designation implies, I-15 Bus. terminates at I-15 ( running concurrently with US Highway 89, or US 89, and Montana Highway 200
Montana Highway 200 (MT 200) in the U.S. state of Montana is a route running east–west, across the entire state of Montana. From the starting point at Idaho State Highway 200, ID 200, near Heron, Montana, Heron, the highway runs east to N ...
, or MT 200, through western Great Falls) at each end. The southernmost of the route from the interchange with I-15 to Fox Farm Road is designated, but not signed, as Interstate 315 (I-315). I-315 is the second shortest Interstate in the country; only the unsigned I-878 in New York
New York most commonly refers to:
* New York (state), a state in the northeastern United States
* New York City, the most populous city in the United States, located in the state of New York
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* ...
is shorter; it is also the northernmost auxiliary Interstate of I-15.
Route description
I-15 Bus. begins at I-15 exit 278 in an unincorporated area of Cascade County, a short distance southwest of Great Falls. At the trumpet interchange
In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, usi ...
, US 89 and MT 200 separate from I-15 and merge with I-15 Bus. Additionally, MT 3 begins at the interchange and follows the three routes to the east. Just east of the interchange with I-15, I-15 Bus. intersects 14th Street. The Interstate Highway standard conditions come to an end a short distance to the east at an intersection with Fox Farm Road. Here, the I-315 (designated along I-15 Bus. from I-15 to Fox Farm Road) comes to an end while I-15 Bus., US 89, MT 3, and MT 200 continue across the Missouri River
The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...
into downtown Great Falls.
Within downtown, the four routes remain concurrent along 10th Avenue South to the parallel one-way couplet
A one-way pair, one-way couple, or couplet refers to that portion of a bi-directional traffic facilitysuch as a road, bus, streetcar, or light rail linewhere its opposing flows exist as two independent and roughly parallel facilities.
Descriptio ...
of 5th and 6th streets. I-15 Bus. northbound separates from US 89/MT 3/MT 200 at 6th Street, following the street northward through the city to the one-way 2nd Avenue North near the city center. I-15 Bus. turns to the west, following 2nd Avenue North to Park Street, then Park Street south to Central Avenue, where I-15 Bus. northbound rejoins the routing of I-15 Bus. southbound. Between Central Avenue and 10th Avenue South, I-15 Bus. southbound is routed along 1st Avenue North east to 5th Street South, then 5th Street South to 10th Avenue.
I-15 Bus. follows Central Avenue to the west, crossing the Missouri River once more as it exits downtown. After several intersections with local streets, I-15 Bus. terminates at I-15 exit 280. Central Avenue, however, continues westward from the exit.
History
Major intersections
See also
* Business routes of Interstate 15 in MontanaReferences
External links
* {{authority control 15 Business (Great Falls, Montana) 15 Business (Great Falls) Business (Great Falls, Montana) Transportation in Cascade County, Montana