Interstate 180 (Wyoming)

Infobox road
state=WY
route=180
type=I


maint=
length_mi=1.09
length_round=2
length_ref= [http://www.fhwa.dot.gov/reports/routefinder/table2.cfm FHWA Route Log and Finder List - Interstate System - Design - FHWA ] ]
year_established=1984
direction_a=South
terminus_a=Jct|state=WY|I|80|US|85|US|87 in Cheyenne
junction=
direction_b=North
terminus_b=jct|state=WY|BL|25|dab1=Cheyenne|BL|80|dab2=Chyenne|US|30|US|85|US-Bus|87|dab5=Cheyenne in Downtown Cheyenne [It isn't clear whether Lincolnway, the road at the northern terminus of I-180 is US 30 or BUS US 30. [http://www.rockymountainroads.com/us-030_wy.html] There are Business US 30 shields where W Lincolnway splits off from I-80 ("Photos": [http://www.rockymountainroads.com/wyoming080/i-080_eb_exit_358_08.jpg] , [http://www.rockymountainroads.com/wyoming080/i-080_eb_exit_358_13a.jpg] from [http://www.rockymountainroads.com/i-080e_wy.html] ) and on E Lincolnway ("Photos": [http://www.rockymountainroads.com/wyoming080/bl-080_eb_cheyenne_after_converse_ave.jpg] , [http://www.rockymountainroads.com/wyoming080/bl-080_wb_cheyenne_app_us-030_02.jpg] from [http://www.rockymountainroads.com/bl-080g_wy.html] ) but there are East US 30/West US 30 shields at other places, including the I-180 junction. [http://www.rockymountainroads.com/bl-080g_wy.html] ]
previous_type=WY
previous_route=177
next_type=US
next_route=185

Interstate 180 (abbreviated I-180) is a spur off Interstate 80 into downtown Cheyenne, Wyoming ( [http://maps.google.com/maps?q=Cheyenne+WY&ll=41.124657,-104.80751&spn=0.01319,0.043302 Map] , [http://terraserver.microsoft.com/image.aspx?T=1&S=11&Z=13&X=1289&Y=11382&W=2&qs=I-180%7cCheyenne%7cWY&Addr=I-180%2c+Cheyenne%2c+WY+82007&ALon=-104.8121556&ALat=41.1304498 aerial photo] ).

It is unusual for being the only Interstate Highway that is not up to Interstate Highway standards (and not even a freeway) anywhere on its route. The only grade separations are a standard diamond interchange at its southern end at I-80, and a bridge over the Union Pacific railroad tracks. It is a divided at-grade expressway with a 40 mph (60 km/h) speed limit due to the frequency of signals. There are five under the Interstate Highway program.

I-180 is cosigned with Business Loop Interstate 25, U.S. Highway 85 and U.S. Highway 87 Business, making it the only concurrency of an Interstate, a Business Loop Interstate, a U.S. route and a Business U.S. route.

Major intersections

The entire route is in Cheyenne, Laramie County.

Notes

External links

* [http://www.rockymountainroads.com/i-180_wy.html I-180 at RockyMountainRoads.com]
* [http://www.interstate-guide.com/i-180_wy.html I-180 at Interstate-Guide.com]