Site Surveyor (Hydropower)

Site Location: PSP site Gandikota, Andhra Pradesh

Key Role

To ensure that all project components civil, hydromechanical (HM), and electromechanical (EM)are constructed with accurate geo-spatial control, correct levels, alignments, and coordinates, and strict adherence to design tolerances. He/she is responsible for establishing and maintaining the survey control network, ensuring positional accuracy for all underground, overground, and HM installations throughout the project lifecycle.

Role & responsibilities

1. Establish and Maintain Survey Control Network

• Create and verify horizontal and vertical control points across the entire project area.
• Establish permanent benchmarks for all critical structures (dam, tunnels, pressure shaft, caverns, powerhouse).
• Maintain accuracy and stability of control stations throughout the project duration.

2. Setting-Out for All Civil, Hydro-Mechanical & EM Works

• Provide accurate setting-out for:

• Dam and spillway structures

• Intake, HRT, TRT, adits

• Surge shaft, pressure shaft/tunnel

• Powerhouse and transformer cavern

• Penstock alignment

• Ensure construction matches the design coordinates, alignments, levels and profiles.

3. Underground Works Alignment & Monitoring

• Conduct:

• Tunnel alignment checks

• Deformation monitoring (convergence measurements)

• Overbreakunderbreak evaluation

• Crown, wall, and invert position verification

• Ensure breakthrough of tunnels from multiple headings occurs within tolerance.

4. Support for Hydro-Mechanical & EM Equipment Installation

• Provide accurate alignment for:

• Penstocks, steel liners, bifurcations

• Turbine runner, draft tube, spiral case

• Generator stator, rotor centreline

• EOT cranes and monorails

• Maintain high precision as required by OEMs.

5. Topographic & As-Built Surveys

• Conduct detailed surveys for:

• Excavation quantities

• Valley, river, and hill terrains

• Underground cavity mapping

• Penstock and pipeline routing

• Prepare as-built drawings for all completed works.

6. Quantity & Progress Verification

• Measure:

• Earthwork volumes

• Rock excavation

• Backfilling

• Concrete quantities

• Support billing verification for contractors and subcontractors.

7. Geodetic and Structural Monitoring

• Monitor movement/settlement of:

• Dam body

• Powerhouse

• Pressure shaft

• Underground tunnels

• Detect and flag any unusual displacement to engineering or safety teams.

8. Calibration & Instrument Management

• Ensure all survey instruments are:

• Calibrated

• Maintained

• Functioning accurately

• Manage modern equipment like total stations, DGPS, LiDAR, tunnel profilers.

9. Compliance with Codes, Safety & Standards

• Ensure all survey works comply with:

• BIS/IS standards

• Project-specific tolerances

• OEM guidelines for machinery alignment

• Maintain safety procedures in:

• Underground areas

• Steep terrains

• Restricted zones

Qualification and Experience

• Diploma or Degree in Civil Eng. will be an added advantage.
• 10-15 years in underground hydropower/ Pump storage projects.
• Well versed in operating AutoCAD, 3D and other related software tools.