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The 45th parallel north is often called the halfway point between the equator and the North Pole, but the true halfway point is 16.0 km (9.9 mi) north of it (approximately between 45°08'36" and 45°08'37") because Earth is an oblate spheroid; that is, it bulges at the equator and is flattened at the poles. [1]
It is the line that marks the theoretical halfway point between the equator and the South Pole. The true halfway point is 16.2 km (10.1 mi) south of this parallel because Earth is not a perfect sphere, but bulges at the equator and is flattened at the poles. [1] Unlike its northern counterpart, almost all (97%) of it passes through open ocean.
After leaving the northern Columbia suburb of Blythewood, I-77 narrows to four lanes until it widens to eight lanes at Rock Hill from exit 77 to the North Carolina state line at I-485. The final section of the entire length of I-77 was completed in Columbia in 1995.
Even as equipment/techniques improved, the initial surveyed line still remains the official border, [2] which is why the extreme points may be either side of the agreed-upon line. The 49th parallel was agreed to be the border between the United States and British North America (later Canada) from Lake of the Woods to the Strait of Juan de Fuca ...
Interstate 85 (I-85) is a part of the Interstate Highway System that runs 666.05 miles (1,071.90 km) from Montgomery, Alabama, to Petersburg, Virginia.In the U.S. state of North Carolina, I-85 crosses the entire state from southwest to northeast (though is signed north–south), at the South Carolina state line near Grover to the Virginia state line near Wise.
Also, at the Ohio–Pennsylvania state line, signage for US 62 changes from an east–west to north–south. US 62 also runs north-northeast from the Ohio border towards New York. [8] US 62 passes through Mercer and runs across country to Franklin. At this point US 62 enters the Allegheny River valley and follows this river for 45 miles (72 km).
Interstate 495 (I-495) is an auxiliary route of I-95 in the US state of Massachusetts, maintained by the Massachusetts Department of Transportation (MassDOT). Spanning 121.56 miles (195.63 km), it is the second-longest auxiliary route in the Interstate Highway System, being roughly 11 miles (18 km) shorter than I-476 in Pennsylvania.
A compromise was reached, in which the US 630 route would become the main line of US 30, once improved to higher standards, but that was still not deemed completely satisfactory. Ultimately, in the final system, a split was approved between Burley, Idaho, and Granger, Wyoming, with US 30N running along the modern routing US 30, and US 30S ...