Among the three choices, including a swing bridge and a single-leaf bascule bridge, the vertical lift span best suited the Indian Railways’ requirements of stability and cost-effectiveness.

purple-magenta-yellow-white blossom atop a slender stem with a single leaf. Thrives best in shade or part shade and can handle alkaline soil. Grows 2-8 inches tall. Dutchman’s breeches (Dicentra ...