Topographical Survey

Control Survey
  • Triangulation
  • Establishment of Benchmarks
  • B type Benchmarks
  • Temporary Benchmarks
Detailed Survey
  • Project Area Survey
  • Transfer of Benchmarks in Project Area – local survey
  • Reservoir survey
  • DAM/ Powerhouse complex
  • Adits/Portals & Intake
  • Quarry / Borrow area / Disposal Area
River L – Section & X – Section
  • L – section
  • X – section
Reconnaissance Survey
  • Fixation of Control Pillars
  • Fixation secondary control pillars
  • Consideration of basic trends of Land, Habitations & Forest density
Height Control Survey
  • Connection of height control traverse to the benchmark
  • Detection of closing error
  • Benchmark for further detailing in height control
  • Digital Terrain modeling