Keenjhar Lake

ASSURING WATER SUPPLY TO KARACHI UPGRADING KEENJHAR LAKE SYSTEM

Duration: June 2006 – September 2015
Client: Irrigation Department Government of Sindh
Cost of Consultancy: USD 1.61 Million (Rs. 169.142 Million)

Project Components:
Salient Features of Keenjhar Lake are as follow:-

Area of Lake at R.L 54.0
(Before Completion of Project)
52.00 Sq. miles (134.68 Sq. km)
Storage Capacity 0.55 MAF (678.42 Mcm)
Area of Lake at R.L 57.0
(After Completion of Project)
55.00 Sq.miles (142.45 Sq. km)
Storage Capacity 0.66 MAF (814.10 Mcm)
Average Depth of Water 20 ft (6.09 m)
Quantity of Additional Water: 0.11 MAF/135.68 Mcm (423.5 cusec/11.99 cumec for Four Months from November to February)
Maximum Height of Embankment 34 ft (10.36 m)
Length of Embankment 15 Miles (24.14 km)

Project is comprised of three phases detailed as under

PHASE – I

  • Repair of Nai-Baran Super-passage.
  • Rehabilitation /Remodeling of K.B. Feeder Upper Canal.
  • Constructing debris traps for storm water debris.

PHASE – II

  • Three Feet Raising and Strengthening of Keenjhar Lake Embankment

(Bank Works).

PHASE – III

  • Construction of spillway structure
  • Construction of spillway approach bunds
  • Construction of spillway lead channel
  • Construction of box culvert at highway crossing
  • Construction of super-passages on KB Link canal and RBOD-II