Detailed Engineering Survey, Soil Investigation, Hydrological Study and Detailed Engineering Design of Motorable Bridge in Madhesh Province : a) Main Khola Bridge, Sonama-7, Mahottari b)Rupani Khola Bridge, Sundarpur-Manaharwa Road, Mahottari c) Katiniya Nadi Bridge, Bishnupur-3, Siraha d) Chanda Khola Bridge, Garuda-2, East of Gedhiguthi Ramjanaki Math, Rautahat