Asyut Barrage
Asyūţ
The Asyut Barrage is a significant masonry dam located on the Nile River in the city of Asyut, Upper Egypt. Completed in 1903, it was designed by the renowned British engineer Sir William Willcocks, who also designed the Aswan Low Dam. The barrage spans approximately 2,769 feet (844 meters) of masonry with 111 arched openings controlled by steel sluice gates. It was built to divert Nile water into Egypt's largest irrigation canal, the Ibrahimiya Canal, supporting agricultural activities during low water seasons. The dam includes a lock capable of passing large cargo ships, highlighting its importance for river navigation. Constructed of granite and concrete, the barrage has undergone several upgrades and repairs since the 1930s to address structural and hydraulic challenges, especially due to changes in river flow after the Aswan High Dam's construction. Its design incorporates advanced engineering techniques for its time, including cast iron sheet piling to protect foundations and stone paving to prevent erosion. The Asyut Barrage remains a vital infrastructure piece for irrigation and navigation in the region, reflecting early 20th-century engineering prowess and Egypt's agricultural development.
ヒント: Visitors interested in the Asyut Barrage should consider visiting during daylight hours to fully appreciate its engineering features and the view of the Nile. Since it is a functional dam, access may be limited; checking local visitor information or contacting the site in advance is recommended. No specific ticketing is required, but guided tours may enhance understanding of the dam's historical and technical significance. Early morning or late afternoon visits can offer cooler temperatures and better photographic lighting. There may be discounts or special arrangements for educational groups or researchers, so inquire locally if applicable.
興味深い事実
- •The Asyut Barrage was designed by Sir William Willcocks, who also designed the Aswan Low Dam.
- •The dam features 111 arched openings, each 5 meters wide, controlled by steel sluice gates.
- •It includes a lock 262.5 feet long and 52.8 feet wide, allowing passage of the largest Nile cargo ships.
- •The barrage's foundation is protected by cast iron sheet piling extending 23 feet into the riverbed to prevent undermining.
- •Construction involved over 2.4 million cubic yards of earthwork and 125,000 cubic yards of concrete.
歴史
Construction of the Asyut Barrage began in 1898 and was completed in 1903 under the direction of Sir William Willcocks.
It was built to support irrigation by diverting Nile waters into the Ibrahimiya Canal.
The project was initially estimated to cost £525,000 but ultimately cost £870,000.
Extensive remodeling occurred between 1934 and 1938 to extend piers and update equipment, increasing the dam's permissible water head.
Further repairs and reinforcements were carried out in the mid-20th century to address erosion and structural wear, especially following the construction of the Aswan High Dam, which altered the river's flow regime.
The barrage has served over a century as a crucial irrigation and navigation structure in Upper Egypt.
場所ガイド
The Masonry Dam Structure1903
An 844-meter-long masonry dam with 111 arched openings controlled by steel sluice gates, showcasing early 20th-century engineering techniques.
Lock for Nile Navigation1903
A lock measuring 262.5 feet by 52.8 feet designed to accommodate the largest cargo ships and barges on the Nile, facilitating river traffic.
Foundation Protection System1903
The dam's foundation is secured by a masonry platform with cast iron tongued and grooved sheet-piling extending into the riverbed, preventing erosion and undermining.
連絡先
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