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US Highway 45 (US 45) is a part of the United States Numbered Highway System that runs from Mobile, Alabama, to the Upper Peninsula (UP) of the US state of Michigan. The highway forms a part of the state trunkline highway system that is maintained by the Michigan Department of Transportation (MDOT). It enters the state from Wisconsin south of Watersmeet, ending at an intersection with Ontonagon Street in Ontonagon. In between, the roadway crosses the UP running for approximately through the Ottawa National Forest and parallel to the Ontonagon River. The highway dates back to the 1930s in Michigan. At the time it was extended into the state, it replaced sections of M-26 and M-35. An segment was significantly reconstructed in the late 1950s, and an alignment change in the 1970s moved the routing of US 45 near Rockland before it was reversed soon afterwards. A segment of roadway that formerly carried US 45 is the site of the Paulding Light, a local phenomenon whose origins were scientifically described in 2010. ==Route description== US 45 crosses from Wisconsin to Michigan near Land O' Lakes, Wisconsin, east of the Sylvania Wilderness area of the Ottawa National Forest. The highway angles northeast from the state line before curving around to the north toward Watersmeet, where it intersects US 2. Watersmeet is home to the northern section of the Lac Vieux Desert Indian Reservation. Continuing north across the Gogebic–Ontonagon county line, US 45 crosses the boundary between the Central and Eastern time zones.〔〔 In southern Ontonagon County, the highway runs west of the Bond Falls Flowage near Paulding. North of here, the trunkline enters Bruce Crossing and intersects M-28. After leaving town, US 45 runs northward parallel to the Middle Branch of the Ontonagon River, and the highway crosses the river near a roadside park south of Rockland. East of Rockland, US 45 meets the southern terminus of M-26; after the intersection, US 45 turns northwesterly and runs parallel to the Ontonagon River and a branch of the Escanaba and Lake Superior Railroad (ELS). US 45 enters the south side of Ontonagon on Rockland Road near the Holy Family Cemetery. The roadway turns due north and crosses the ELS rail line, still running parallel to the course of the river. South of downtown, the highway crosses an intersection that serves as the joint termini of M-38 and M-64. M-64 crosses the river from the west on a bridge built in 2006 and ends at the intersection.〔 M-38 comes into town from the east and also ends at the same intersection. US 45 continues north on Rockland Road and turns northwest on River Street along the eastern river bank through downtown. The northern terminus of US 45 is at Ontonagon Street, about from Lake Superior. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「U.S. Route 45 in Michigan」の詳細全文を読む スポンサード リンク
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