Detail Feasibility Study Navigation along Kaligandaki River from Ramdi to Devghat

Detail Feasibility Study Navigation along Kaligandaki River from Ramdi to Devghat

Project: Navigation along Kaligandaki  River

Assignment: Detail Feasibility Study Navigation along Kaligandaki River from Ramdi to Devghat

Location: Syanja, Palpa, Tanahun and Nawalparasi East Districts

Client: Nepal Shipping Office

Duration: January 2021 to September 2021

Project Description: Kaligandaki River is one of the seven tributaries of Narayani (Saptagandaki) river. Kaligandaki river originates from Nhubine Himal Glacier of Mustang district and joins Trishuli rive at Devghat, after which the river is called Narayani. Kaligandaki river basin has total area of 11,841.69 km2 ranging from maximum elevation of 8,120 m to 190m (Devghat). The project site is located in Syanja, Palpa, Tanahun and Nawalparasi East districts of Province No. 4 Gandaki province.

Scope of Services:

1. Field Investigation and Data Collection
   • Planning and Reconnaissance Survey
   • Establishment of Bench Marks and Transfer of Control Points – – Data Collection, GNSS Planning, Spatial Planning, Monumentation       of Benchmark, Control Survey, Computation of Co-ordinates,
   • Bathymetric Survey – Underwater-Longitudinal and Cross-section Survey, Data Recording, Data Sampling and Correction, River             edge to 5 m above HFL/ 100m from edge, Summary of Measurements,
   • Obstacle Survey
   • River Bends Detailing
   • Mapping and Reporting
   • Discharge Measurement-Measurement of Width, Spacing of the Measuring Verticals, Measurement of Depth, Measurement of             Velocity, Computation of Discharge and Result Reporting
   • Sediment Measurement – Sediment Sampling, Laboratory Analysis,
2. Hydrological Analysis
   • Basin Characteristics
   • Data Collection
   • Mean monthly flow calculation
   • Flood analysis
3. Hydraulic Modelling
   • Input Parameters-Cross section data, Manning’s n value
   • Flow data
   • Boundary Condition
4. Navigability study – Recommended Navigation Plan, Impact of other projects on Navigability
5. Fairway Development – Fairway Design, Navigation Improvement Works
6. Planning of Terminals – Terminal Site Selection, Description of Proposed Terminals, Geotechnical Investigations, Soil Testing of              proposed terminal sites.
7. Cost Estimates
8. Traffic Study
9. Environmental and Social Aspects
10. Economic Analysis
11. Reporting and Recommendations