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In October 2019, the North Carolina Railroad Company began work to raise the bridge by 8 inches (0.20 m) as part of a $500,000 project to improve safety and reduce damage to the span. The bridge was raised to a new height of 12 feet 4 inches (3.76 m), the maximum clearance that would not affect the grades of nearby crossings.
The Union Pacific 9000 class was the only class of steam locomotives with a 4-12-2 wheel arrangement ever to be built. Under the Whyte notation for the classification of steam locomotives, the locomotives had four leading wheels, twelve coupled driving wheels, and two trailing wheels.
By 1922, 80 percent of all new coal mines in the United States were being developed using 3 ft 6 in (1,067 mm) (42 inch) gauge trackage, and the American Mining Congress recommended this as a standard gauge for coal mines, using a 42-inch (1,067 mm) wheelbase and automatic couplers [which?] centered 10 inches (254 mm) above the rail.
On top of these sills were laid 4-by-6-inch or 4-by-8-inch oak "stringers" notched and pinned together. The rails were flat iron straps (section of rail) 12 to 15 feet long, two-and-a-half inches wide, and only five-eighths of an inch thick. Spikes held them onto the stringers, and their ends were mitered.
The draft while “light” (without cargo) was just 13 inches. [4] Cargo capacity of the Three Sisters was about 180 tons of sacked wheat. [4] Three Sisters was equipped with two horizontally mounted steam engines, each with a bore of 12 inches and a stroke of 4 feet. [2] These engines of Three Sisters generated 144 nominal horsepower. [3]
With President Joe Biden soon leaving the White House, Democratic National Committee members are already readying for a fight to reorder the primary contests in the next presidential election.
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