Project Description: Kaligandaki-Tinau Diversion Project is an irrigation project with provision for hydropower development. The hydropower plan has been laid out as a cascade facility which will divert water for irrigation but deliver through the tailrace of one powerhouse. Water in excess after providing for irrigation will be cascaded down to a second powerhouse. According to feasibility study, the installed capacity of the project is 104 MW and the length of the tunnel is 30 KM with diameter of 9m. The available net head is 182m and design discharge is 81.96m3/s.

Scope of Services:

1. Identification of the nearest permanent BM and trig points and establishment of BM/ Control points in the required places around the survey site – 3 Nos;
2. Bathymetric Survey in total of 21 sections (6 upstream of the dam site, 1 along the dam axis and 14 downstream of the dam site location);
3. River cross-section survey of Kaligandaki River along the Bathymetric Survey line up to HFL +10 m on both bank;
4. Preparation of the D-card for the Control points/ BM established during the work; and
5. Preparation of the Bathymetric Map and Survey report.
6. Equipment used:
   a) Hiper HR DGPS (3 sets);
   b) Eco-sounder with Transducer and Computer Operating System;
   c) Total Station (1 set); and
   d) Rafting Boat with Out Board Motor and accessories