Flood 2010 began in late July, resulting from heavy monsoon rains in Khyber Pakhtunkhwa, Punjab, Balochistan and Sindh in Pakistan. Over all Pakistan's one-fifth area was affected by flood. According to Government data, flood directly affected about 20 million people, mostly by destruction of property, livelihood and infrastructure with a death toll of close to 2000. Indus Basin Irrigation system is one of the world's largest Irrigation system and the largest system in Pakistan. It covers Area of 17.2 Mha. Indus river basin irrigation system has three major reservoirs, sixteen barrages, two head works, two siphons across major rivers, 12 inter river link canals and 44000irrigation canal mileage. Sindh irrigation system lies below Guddu barrage, the first barrage in Sindh, enters Sindh province at a R.L. of (75m 246ft) above mean sea level. After Flood 2010, it was important to study the region of sukkur and sukkur barrage to control high flood with safe flow to avoid massive destruction. Almost one fifth portion of Pakistan was submerged in Flood water. For future planning it is important to take precautionary measures and avoid destructions at sukkur barrage. Sukkur Barrage has network based on seven canals (9923 km) 6166 miles long, feeding the largest irrigation system in the world, with more than 7.63 million acres of irrigated land which is approximately 25 percent of total canal irrigated area of the country. Structure of barrage is based on 66 spans, each 60 feet and weighing 50 tons. Here, Goal of research study is to present a hypothetical flood in Indus River at point of Sukkur barrage with potential changes in geometry of river in premises of Sukkur barrage. To measure technical analysis of sukkur barrage a computer based model is prepared through HEC RAS software. software is capable to moderate the satellite image and modify it according to contour's of area and imbedding Computer Added Design in model to analyze impact of flood 2010 at Sukkur Barrage. levees are also generated in model to overcome the problem of overtopping of flood water. Analysis shows results same as satellite images were taken during flood and impact of velocity pressure (showing water particle tracing) at gates were also measured as depositing of silt at upstream of barrage.