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Maximum grade: The maximum permissible vertical angle, or grade, along the highway is determined from terrain and design speed, [4] with up to 6% generally allowed in mountainous areas, 5% in rolling terrain, and 4% on level terrain. An additional 1% is allowed in urban areas.
East of McAlester the road continues as a four-lane road (much of it divided) connecting many small towns east of the city: Krebs, Alderson, Bache, Dow, Haileyville, and Hartshorne. West of Hartshorne US-270 splits off from SH-1 and it continues east concurrent with SH-63. For 6 miles (9.7 km) SH-1 and SH-63 overlap State Highway 2.
SH-41, which was an east-west route across west-central Oklahoma that began at the intersection of S.W. 29th and May Avenue in Oklahoma City and veered southwest to Mustang, Union City and Minco before continuing west through Binger, Eakly, Cordell and Sayre and then crossing the Texas border near Sweetwater, was redesignated as SH-152 over its ...
The department maintains 139 miles (224 km) of state-owned railway, which are operated through leases with railroad companies, administers the Federal Highway Administration's Grade Crossing Safety Program which provides funding to make safety improvements to Oklahoma's nearly 3,800 at-grade public railway/road intersections, and manages the ...
United States Numbered Highways in Oklahoma are part of a nationwide network of roadways passing through the 48 contiguous states. These U.S. Highways are the second-highest category of road classifications in the Oklahoma road system, just below the Interstate Highways. U.S. Highways are marked with a number contained inside a white shield in ...
The Indian Nation Turnpike is built to parkway-like design standards, omitting a center barrier and left-hand shoulders for a slightly mounded grassy median that is flush with the edge of the left lane in each direction. However, the median is slowly being upgraded to a cable barrier with left shoulders bordering it. The turnpike's speed limit ...
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The alignment is the route of the road, defined as a series of horizontal tangents and curves. The profile is the vertical aspect of the road, including crest and sag curves, and the straight grade lines connecting them. The cross section shows the position and number of vehicle and bicycle lanes and sidewalks, along with their cross slope or ...