2013-09-25_PERMIT FILE - C1996083A (6)

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t tipple was equipped with a rotary dump, a hopper and feeder, shaking screens and conveyors to load cars on four tracks. A crusher was added in 1937. The tipple was dismantled by Adolph Coors Company after 1977. A coal sales house still stands south of the tipple foundation. This two-story building is made of poured concrete foundation and floors with 8" masonry (concrete block) walls. The overall dimensions are 20'-4" x 20'-4". Presently, each floor contains only one room and one exterior door. The main floor door opens to the north and the basemen[ floor door opens to the south. The main floor also has five 3'-8" x 5'-4"steel sashes with 8 lites in a 2-wide, 4- ' high configuration in which the 4 center lites operate in an awning fashion. The basement contains only one window opening (window not present) measuring 2'-8" x 2'-6" located to 1 the east of the basement door. There is a small chimney which spans both floors located on the east wall near the southeast corner of the building. The 2:12 pitched shed roof utilizes railroad rails for framing and corrugated metal roofing (see drawing A6). ' Built on a 26 degree (lower) and 33 degree (upper) incline, the tramway was a 1200- foot-long, double-track gravity plane. Steel cables were attached to cars. Each cable went ' back approximately 300 feet into the mine where it was attached to a separate drum within a common shaft. One cable went over its drum and the other cable under its drum, so that when one drum was winding up cable, the other cable was unwinding. Loaded cars descending on the gravity plane would be unwinding cable, and the other drum winding and pulling the empty cars up the plane. The "pit" cars, used to haul coal from the mine to the tipple, were designed for a capacity of two tons. The front end of each car was 15 inches ' higher than the sides and rear. This was to keep coal from sliding off as it descended the steep incline. Cars were connected by link and pins and when disconnected, controlled by hand brakes. Each car was weighed on the scale at the tipple and dumped into a storage t hopper. A trip was usually made up of four loaded pit cars descending and pulling four empty cars up the plane. A trip could be stopped at any point on the tram and its speed controlled by the wheelman in the pilot house overlooking the tram. The power plant building, completed in 1922, is a 3.5-story brick and concrete ' structure that measures 97'-7" x 51'-6". [t contained two boilers in the east room, and two 375 kilowatt, AC turbine-driven generators in the west room (only one of each remain). It replaced the DC generating plant that was built in 1915. The foundation and floor are of ' poured concrete. The brick walls and piers are 18"' thick and are built from brick from the Delta Brick and Tile Company. The thirty-eight windows are constructed of five types. Fifteen windows (Type A) at the lowest placement are operating wood double hungs which ' measure 4'-10" x 6'-11 ", have a 5-wide, 3-high lite configuration per sash, 1 1/2" brick mold casing and precast concrete sills Type B, numbering eight, are located in the boiler room on the east and south walls at the second level and are stationary wood sashes measuring 4'-l0" ' x 5'-6" that contain a lite configuration of 5-wide, 3-high, 1 1/2" brick mold casing and precast concrete sills. The third style, Type C, of which there are only three, are located on 8 1