Search results
Results from the WOW.Com Content Network
Sri Lanka is pockmarked with many irrigation dams, with its water resource distributed across nearly the entirety of the island for agricultural purposes via artificial canals and streams. Utilization of hydro resources for agricultural production dates back to the pre-Colonial era , with the current crop production now largely dependent on ...
A catchment site within the system is referred to as a wewa (වැව) in Sinhala, and this term is translated into English as "tank". [7]These tanks are connected in a series, referred to as a cascade, so that an ephemeral waterflow can be used, stored for future use, or conveyed elsewhere. [7]
The main concrete dam measures approximately 350 m (1,150 ft) and creates the Rajanganaya Reservoir, which has a catchment area of 76,863.60 hectares (189,934.1 acres) and a total storage capacity of 100.37 million cubic metres (3,545 × 10 ^ 6 cu ft).
The smallest unit was known as "Paramaanuwa", which was equal to 3.306 × 10 −11 m (1.302 × 10 −9 in). A typical span was taken roughly equal to 22.86 cm (9 in). These small units of measurement were used in making of statues and buildings. Following are the relationships between the units used in ancient times. [6] [7]
The Laxapana Dam is a gravity dam built across the Maskeliya Oya, 2.8 km (1.7 mi) downstream of the Laxapana Falls, in the Central Province of Sri Lanka. [ 1 ] Power station and reservoir
The dam measures 122 m (400 ft) tall, with a crest length of 520 m (1,706 ft), crest width of 6 m (20 ft), and a base width of 25 m (82 ft). The dam creates the Victoria Reservoir, which has a surface area of 22.7 km 2 (8.8 sq mi), gross storage capacity of 722,000,000 m 3 (2.55 × 10 10 cu ft), and a catchment area of 1,869 km 2 (722 sq mi).
Pages in category "Lists of buildings and structures in Sri Lanka" The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes .
The dam creates the Dyraaba Reservoir (DR) which has a gross storage of 970,135 m 3 (34,260,000 cu ft) and active storage of 600,000 m 3 (21,000,000 cu ft). Water from the reservoir is channelled through a 15,290 m (50,160 ft) long circular pressurised-flow headrace tunnel measuring 4.25 m (13.94 ft) in diameter, which has a discharge capacity ...