River Survey

A River Survey is a specialized type of hydrographic and topographic survey conducted to collect detailed information about a river’s physical features, flow characteristics, bed profile, and surrounding floodplain. It is essential for river management, flood control, embankment design, dredging, irrigation planning, and bridge or infrastructure development.

Purpose of a River Survey:

• ✅ To measure the width, depth, and slope of the river
• ✅ To monitor erosion, sedimentation, and riverbed changes
• ✅ For flood risk analysis and embankment or dam planning
• ✅ To design bridges, culverts, and river training works
• ✅ To support dredging, navigation, and water resource planning

What is Included in a River Survey?

• Cross-sectional profiles at regular intervals
• Longitudinal profile of the riverbed
• Water level and flow direction
• Riverbank mapping and erosion zones
• Soundings (depth measurements) using echo-sounder or pole
• Topography of adjacent floodplain areas