Masani barrage, also Masani bridge, a barrage on the seasonal Sahibi River completed in 1989, is named after the Masani village in Rewari District of Haryana in India. Masani barrage also serves as a bridge on NH 919. Water storage in the barrage was made perennial in 2017 after a gap of 50 years. This barrage is important part of ecological corridor along the route of Sahibi river which traverses from Aravalli hills in Rajasthan to Yamuna via Matanhail forest, Chhuchhakwas-Godhari, Khaparwas Wildlife Sanctuary, Bhindawas Wildlife Sanctuary, Outfall Drain Number 8 and 6, Sarbashirpur, Sultanpur National Park, Basai and The Lost Lake (Gurugram). Location and transport Masani barrage is also used as the bridge on National highway NH 919 (former name NH 71B) which merges with national highway NH 48 (former name NH 8) (Delhi-Jaipur-Mumbai) at this barrage. Union govt announced the plan to four-lane the Masani barrage road (c. Aug 2017). Background Etymology . Masani barrage is named after the Masani village in Rewari District of Haryana in India. Masani village itself is named after the Masani Devi, which itself is an avatar (manifestation) of Hindu deity Shakti Devi - a universal divine creative feminine power. History Barrage was built in 1989. on the seasonal Sahibi river which is 120 km long and flows from Aravalli hills in Rajasthan to South Haryana and Delhi. After Sahibi river caused floods in 1977, then Prime Minister Morarji Desai mandated a flood control and water utilization master plan for the Sahibi river basin, consequently under which construction on Masani barrage commenced in February 1979 and completed in 1989. Barrage Technical details It lies in the Indian seismic zone IV. It has 18 gates/bays to release water. 18 km barrage wall built at the cost of INR 50 crore has to resorvior to hold water. Irrigation and flood control Barrage was built to provide irrigation facilities to 50,000 acres in Haryana, and flood protection to 1.60 lakh acres in Haryana and 40,000 acres in Delhi. Wildlife Fauna Masani barrage wetland is spread over Dungerwas, Kharkhara and Nikhri villages. Over 20,000 migratory birds of 50 species from Siberia, Russia, Mongolia, Alaska and other parts of the USA are found at the barrage during the winter. Their number is rising since there is favourable habitat and easy availability of food. Bird species found here are wagtails, common teal, pintail, northern shoveller, garganey, eurasian coot, redshank,