Wyoming Highway 345

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Wyoming Highway 345 marker

Wyoming Highway 345
Route information
Maintained by WYDOT
Length: 19.27 mi[2] (31.01 km)
Existed: 1985[1] – present
Major junctions
West end: S-451 at Montana State Line
East end: I‑90 / US 14 / US 87 in Acme
Location
Counties: Sheridan
Highway system

State highways in Wyoming

WYO 344 WYO 350
US 85 US 87.svg US 89

Wyoming Highway 345 is a 19.27-mile (31.0 km) Wyoming State Road located in northern Sheridan County.

Route description[edit]

Wyoming Highway 345 begins its western end (or northern end at this point) at Montana Secondary Highway 451 at the Montana State Line, approximately 3 miles north of Parkman, Wyoming.[3] For its entire length, WYO 345 parallels the Burlington Northern Santa Fe Railway and to some extent Interstate 90/US Route 87, which lies north of it. Highway 345 travels through the census-designated place (CDP) of Parkman at about 3 miles, as it turns gently southeast. Shortly after, the northern terminus of Wyoming Highway 343, which links to US 14 at Dayton, is met at just under 6 miles. Highway 345 continues eastward toward Ranchester which it reaches nearing 12 miles and US 14 which provides access to exit 9 of Interstate 90.[3][1] Past Ranchester WYO 345 now closely parallels the interstate in its last stretch. Highway 345 meets Interstate 90/US Route 87/US Route 14 at Milepost 19.27, at the "Acme Interchange," its eastern terminus. The roadway continues east as Acme Road past the interchange to Acme.

History[edit]

The entire length of Wyoming Highway 345 was originally designated as US Route 87.[1] This section of US 87 was the last to be decommissioned in favor of the I-90 routing. In March 1985, when I-90 was completed, the Interstate Highway System in Wyoming was completed. At the same time, US 87 was rerouted to Interstate 90 and as a result the former routing through Ranchester became WYO 345.[1]

Major intersections[edit]

The entire route is in Sheridan County.

Location Mile km Destinations Notes
Montana State Line 0.00 0.00 S-451 Western terminus of WYO 345
Continuation into Montana
southeast of Parkman 5.81 9.35 WYO 343 Northern terminus of WYO 343
Ranchester 12.80 20.60 US 14 to I‑90 / US 87 To exit 9 (I-90/US 87)
Acme 19.27 31.01 I‑90 / US 14 / US 87 Eastern terminus of WYO 345
Exit 14 (I-90/US 14/US 87)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

External links[edit]