(a) the progress made so far in the implementation of the Tehri Dam Project;
(b) the extent to which it is behind schedule, item-wise;
(c) the cost escalation suffered by the project stage-wise; and
(d) the time by which it is likely to be completed?
THE MINISTER OF STATE IN THE MINISTRY OF POWER ( SHRIMATI JAYAWANTI MEHTA )
(a) to (d) : The Tehri Hydro-electric Power Project Stage-I (4x250 MW) is under
execution by the Tehri Hydro Development Corporation (THDC). The construction
activities are in full swing. Only 70 meters of the Main Dam is left to be raised against
the height of 260.5 meters. All the four Diversion Tunnels have been completed and are
in operation. The spillway and chute spillway works are in progress. Electro-mechanical
equipment is under erection in the underground Power House.
The first unit of 250 MW of the Project which was scheduled for commissioning
in March, 2002 has been rescheduled because of non-closure of diversion tunnels T-3 and
T-4. Closure of these tunnels is required to make available the dry area for construction
of stilling basin. This could not take place on account of non-vacation of Old Tehri
Town consequent to the agitations resorted to by the local population. The shifting of
Old Tehri Town paving the way for closure of tunnels T-3 and T-4 is now receiving the
attention of the State Government of Uttaranchal and these tunnels are now proposed to
be closed in October, 2001 following which about 18 months are required to complete the
work of spillway and stilling basin.
The revised cost of the project is estimated at Rs.5209.10 crores (at August`99
Price Level) excluding interest during construction and financial charges as against the
approved the cost of Rs.2963.66 crores (at March, 1993 Price Level) excluding IDC.