136RE Concrete Ties with Pads, Insulators and Clips 1,180 EA. voestalpine Nortrak 100S-20 or an approved equivalent. Length: 8’–3” (eight feet, three inches) +/– 1/8 inch Weight: approx.. 610 lbs. Base Width: 11 inches +/– 1/4 inch Height, at rail seat: 8 inches +/– 1/2 inch Height, at center of tie: 6–1/4 inches’+/–1/2 inch Tie symmetrical about both axes: +/– 1/8 inches Shoulder Positioning: Cast in shoulders shall be spaced to maintain track gage at 56–1/2’’ +/– 1/16’’assuming the rail and insulator are hard against the field side shoulder. Railseat Cant: The railseat shall provide for a cant of 1:40 down toward centerline of tie, +/– 1 in 5 either direction. Railseat Flatness: The railseat shall be flat to within +/– 0.030” as measured with a six–inch rule diagonally across the center of the tie railseat area.
