Rawal Lake in Pakistan is an artificial reservoir that provides the water needs for the cities of Rawalpindi and Islamabad. This artificial lake covers an area of 8.8 km². Rawal Lake is located within an isolated section of the Margalla Hills National Park.

The reservoir is of considerable importance for wintering waterfowl, especially Anas platyrhynchos. Resident mammals include the common fox, Pangolin, Porcupine, Jungle cat, Jackal, Wild boar and yellow-throated marten. Reptiles include indian cobra and Russell’s viper. It is a good place for birds watching, as the majority of Birds of Islamabad are found here.

Features of Rawal Lake:

• Location: Islamabad Park Area
• Longitude: 73° 7′ E
• Latitude: 33° 41′ N
• Catchments Area: 106.25 square miles (275 km²)

Features of Rawal Lake dam

• Type of Dam: Partly Arched Gravity Dam (Stone Masonry)
• Crest Level: 1,742 ft (531 m)
• Crest Length: 700 ft (210 m)
• Max. Height: 133.5 ft (40.7 m)

Saddle

• Length 6991 ft
• Height 24 ft

Spillway

• Type Ogee Gated structure
• Discharge Capacity 82000 ft³/s (2,300 m³/s)

Reservoir

• Length 3 square miles
• Max. Depth 102 feet
• Live Storage 43000 acre-feet (53,000,000 m³)
• Dead storage 4500 acre-feet (5,600,000 m³)
• Gross Capacity 47500 acre-feet (59,000,000 m³)

Canals

• Left Bank Canal Length 5 Miles
• Capacity 40 ft³/s (1.1 m³/s)
• Right Bank Canal Length 1.5 Miles
• Capacity 70 ft³/s (2.0 m³/s)

Drinking water supply

• Rawalpindi 19.5 million gallons/day
• Islamabad 2.5 million gallons/day

Command area

• Agriculture 500 acres

Pictures:

Thanks to Wikipedia

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