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Dotara Carry Over Dam

LOCATION

Dotara Dam site is located 41 km upstream of Khanpur Dam and 2.5 km downstream from the junction of Haro and Dhund Haro on Haro River near Dotara village, District Abbotabad.

OBJECTIVES

Municipal water supply by gravity flow to Islamabad & Rawalpindi.

Hydropower Potential

Margala Pumped Storage Scheme 200 MW, (122 m3/sec for 5 hours/day)
Water Supply Scheme for Islamabad & 10 MW Rawalpindi(6.5 m3/sec for 14 hours/day)

Main Components of Project

CURRENT STATUS

  • PC-II Proforma for Feasibility Study amounting to Rs. 236.250 Million was submitted to MoW&P on February 24, 2012.
  • WAPDA has requested MoW&P for early approval of the PC-II vide letter dated April 11, 2014.
  • PC-II was returned by MoW&P on March 21, 2016 with the remarks that if approval of PC-II is required, it may be submitted a fresh with committed source of financing in consultation with beneficiary department.
  • WAPDA has requested Capital Development Authority (CDA) on March 31, 2016 to provide funds being sole beneficiary of the project.
Dam near Dotara Village on Haro River
Dam Height 400 ft(122 m)
River Bed Level 2632 ft (AMSL)
Live Storage capacity 101, 000 Acre-ft
Dotara-Shahdara Gravity Tunnel
Length of tunnel 8.4 km
Diameter of tunnel 8.20 ft (2.5 m)
Flow Rate 194.25 cusecs (5.5 m3/s)
Shahdara Upper Reservoir
Dam Height 250 ft(70 m)
Length of Embankment 1850 ft (565 m)
Storage Capacity 27550 Acre-ft (34 Mm3)
Surface Area 218 acres (0.882 sq.km)
Length of Pressure tunnel 4.06 km
Diameter of pressure tunnel 18.50 ft (5.65 m)
Discharge in Pressure tunnel 4310 cusecs (122 m3/sec)
Gross Head available 640 ft (195 m)
Kot Hathial Lower Reservoir
Storage Capacity 3243 Acre-ft(4 Mm3)
Surface Area66 acres (0.267 sq.km)

COMPARISON OF SALIENT FEATURES 

PROJECT FEATURES DOTARA CARRYOVER DAM PROJECT

WATER SUPPLY FOR ISLAMABAD /RAWALPINDI FROM DOTARA CARRYOVER DAM (HARO RIVER) AND 200 MW MARGALA PUMPED STORAGE SCHEME

Dam near Dotara Village on Haro River
Dam Height (ft) 400 400
River Bed Level (ft) 2632 2632
Live Storage Capacity (MAF) 0.1 0.1
Catchment Area (Sq Mile) 130 130
Avg. Annual Inflow (Acre ft.) 97043 97043
Dotara-Shahdara Gravity Tunnel
Length of Tunnel (Miles) - 8.4
Diameter of Tunnel (ft) - 8.2
Flow Rate (Cusecs) - 194.25
Shahdara Upper Reservoir
Dam Height (ft) - 250
Length of Embankment (ft) - 1850
Storage Capacity (Acre ft) - 27550
Surface Area (Acres) - 218
Length of Pressure Tunnel (Miles) - 2.5
Diameter of Pressure Tunnel (ft) - 18.5
Discharge in Pressure Tunnel (Cfs) - 4310
Gross Head available (ft) - 640
Hydropower Potential (MW) - 200
Kot Hathial Lower Reservoir
Storage Capacity (Acre ft) - 3243
Surface Area (Acres) - 66