Apparently with two thirds of the earth's surface covered by water, it is evidently clear that water is one of the most important elements responsible for life on earth. It is not only vital for sustenance of life, but equally essential for socioeconomic development. Water is the unique gift of God and the basic requirement of life. Due to the high indulgence and exploitation of human being with nature, the global environment is changing every day. As a result the water resources are depleting gradually. The global fresh water shortage and food security issues related to the teeming billions of population necessitated the shifting of fresh water from agriculture to other more pressing uses. The country is facing the worst ever crises of water shortage for last many years, as water available for any given use has become increasingly scarce. The rapidly growing population, expanding of irrigation areas, and growing urban & Industrialization are putting more stresses on water resources. Therefore, building of more reservoirs and an effective management strategy are the needs of time. The problem of water shortage particular in Sindh is crucial as being the end user and lower riparian on the Indus basin irrigation system.

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.

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Now a days, the increased use of scrap/waste as construction material has proved to be very harmful for the environment particularly in tropical countries like Pakistan. Researchers are trying at their best to reduce the adverse impact of waste material on the required environment but yet until more work is required in this regard. In this research paper authors have tried to reuse Silica Fume as construction material as it is very easily available in market as waste material from raw material /by-product industrial waste materials used in mills. The Authors obtained silica fume after proper screening the concerned industrial waste. These industries are available in grater quantity in the province of sindh. The required waste material is available in huge quantity. Silica is very important construction material and by using this as waste we can protect our environment by reusing or proper use of waste material. Here, researchers took different percentage of silica fume and mixed with concrete in varying ratio as replacement of Ordinary Portland Cement as active material in laboratory. Results were came, very interesting and found Tensile Strength, Compressive Strength and Flexural Strengths near to Ordinary Portland Cement also other properties of concrete like pH value, Slump, Curing and Temperature of Concrete shows satisfactory results at various percentage of Replacement with Ordinary Portland Cement. The research work has yielded the satisfactory results and the silica fume can be used effectively as an active construction material. Different percentage shows different results but at 5% and 10% mixing of silica fume indicated high strength as compare to ordinary cement mix and the controlled temperature 28 0 c. Further, Engineering is a vast field and it needs more research with passage of time.

Pakistan is basically an agricultural country, agriculture is considered the back bone of the country. It helps country in earning foreign exchange, about 90% of output comes from agriculture, supports in employment and economy by exporting food grains. Luckly Pakistan has worlds third giant irrigation system, it comprises best storage infrastructure , controlling system of barrages, regulators, conveyance system of canals and an efficient drainage system both horizontal and vertical. 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 44 irrigation canals. Average gradient was observed from sea level as flat with rate of 12.5 cm/km (eight inches/mile), Indus provides irrigation system to major portion of Sindh almost 41 percent. The total Gross Commanded area of Sindh and Baluchistan which depends on Indus is 5.92 Mha whereas, the only Cultivable command Area is 5.43 Mha. The major crops grown in Sindh are rice in Kharif and wheat in Rabi. Besides this, Sindh also produces horticultural crops such as: mangoes, bananas, dates and chilies. Sindh has also diversion capacity of 111 billion cubic meter (BCM) which is equivalent to 90 million Acre Feet (MAF). It was found in the research that excess of silt in Right Bank Canal is more to reduce the velocity of water. Satellite image based model shows negligible velocity to Right Pocket at Sukkur Barrage. 60% less cultivation in 2018 at SaifullahMagsi Branch Division at border of Sindh-Balochistan.