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M-64 is a north–south state trunkline highway in the Upper Peninsula of the US state of Michigan. It runs for through the western part of the state in land that is part of the Ottawa National Forest. The highway connects with County Trunk Highway B (CTH B) at the state line near Presque Isle, Wisconsin. As it passes through dense forests, M-64 runs along lakes Gogebic and Superior. The northern end is at a junction with US Highway 45 (US 45) in Ontonagon. The M-64 designation was used on two other separate highways before it was used for the current highway. The first was at the other end of the state near the Ohio state line, and the second was on the Keweenaw Peninsula near Eagle Harbor. The current highway has carried the M-64 moniker since 1930, when it was assigned along two disconnected highways. These two parts were joined into a single corridor soon after. M-64 was one of the last highways in the state of Michigan to be paved in 1961. In the early part of the 21st century, the state replaced the bridge over the Ontonagon River and shifted the highway's northern terminus. ==Route description== M-64 starts at the Wisconsin state line north of Presque Isle, Wisconsin, where it runs north as the continuation of CTH B into the state of Michigan. The trunkline runs through dense forests along the Presque Isle River in a rural area of Gogebic County;〔〔 this region is a part of the Ottawa National Forest. As the highway enters the community of Marenisco, it follows Pine and Fair avenues through town. On the north side of Marenisco, M-64 turns easterly and runs concurrently with US 2 for about two miles (3 km) including a crossing of the Presque Isle River. East of town, M-64 separates from US 2 and turns northeasterly toward the southern end of Lake Gogebic. The road turns north along the western shore of the lake and provides access to Lake Gogebic State Park. About halfway along the lakeshore, the highway crosses into Ontonagon County and from the Central to the Eastern time zone.〔〔 At Merriweather, M-64 turns easterly again, this time merging with M-28 and becoming a part of the Lake Superior Circle Tour. The two highways run together along the northern end of Lake Gogebic to Bergland. Turning north once again,〔 M-64 crosses a branch line of the Canadian National Railway. The highway runs through more dense forests parallel to the Big Iron River on this north–south leg.〔 The trunkline leaves the national forest as it passes into the community of White Pine, and the road runs near a former copper mine in the area. M-64 approaches the shores of Lake Superior at Silver City. There, it meets the eastern terminus of the former M-107, a highway designation that ran west into the Porcupine Mountains along the current 107th Engineers Memorial Highway. M-64 turns east along Lake Superior following the shoreline to the outskirts of Ontonagon. The highway crosses the Ontonagon River and terminates on the eastern shore. The current intersection with US 45 that marks the end of M-64 on the south side of downtown is also the western terminus of M-38. M-64 is maintained by the Michigan Department of Transportation (MDOT) like all other state trunkline highways. As a part of these responsibilities, the department tracks the volume of traffic that uses the highway. These traffic counts are expressed using a metric called annual average daily traffic (AADT). This number is an expression of the traffic that uses a segment of roadway for any average day of the year. In 2009, MDOT's surveys showed that the highest AADT along M-64 was 3,333 vehicles daily on the Ontonagon River Bridge; the lowest traffic was between US 2 and the Gogebic–Ontonagon county line at 418 vehicles per day. The only segments of the trunkline that have been included on the National Highway System (NHS) are the US 2 and M-28 concurrencies. The NHS is a network of roads important to the country's defense, economy and mobility. 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「M-64 (Michigan highway)」の詳細全文を読む スポンサード リンク
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