High-accuracy terrain mapping, contour surveys, and Digital Elevation Models to support hydraulic design, earthwork optimization, and infrastructure corridor planning across diverse terrain types.
What is Topography Survey?
A topographic survey captures both natural features — hills, valleys, water bodies, vegetation — and man-made features such as roads, buildings, walls, and drainage systems, recording their precise positions and elevations. The resulting topographic map and Digital Elevation Model (DEM) form the backbone of engineering design across all infrastructure sectors.
In Ahmedabad, Gujarat, and across India, HRP Infra's topographic surveys serve water supply schemes, stormwater drainage systems, irrigation canal alignments, highway bypass designs, and industrial area development plans. Using drone photogrammetry, LiDAR scanning, and DGPS total station networks, we deliver sub-decimeter terrain models that power accurate hydraulic modelling, cut-and-fill estimates, and route optimization.
Our surveys comply with CPHEEO manual specifications and BIS standards, and our deliverables are compatible with leading hydraulic, drainage, and civil design software platforms.
Scope of Services
From small site surveys to large-area terrain mapping — our topographic services cover every project type and scale.
Precise contour line generation at specified intervals (0.5m, 1m, 2m) for drainage design, road grading, and earthwork volume calculations.
High-resolution 3D terrain models produced from drone photogrammetry or LiDAR data, suitable for hydraulic modelling and earthwork software.
UAV-assisted large-area topography surveys delivering dense point clouds, orthophoto mosaics, and DSMs at ground resolutions of 2–5 cm.
Terrain analysis to delineate drainage catchments, identify flood-prone zones, and support stormwater management design per CPHEEO guidelines.
Topographic surveys for industrial sites, township developments, and facility layouts in Ahmedabad and across Gujarat for site grading and planning.
Survey outputs provided in AutoCAD DWG, Civil 3D, ArcGIS SHP, KML, and GeoTIFF formats for seamless design team integration.
Why Choose HRP Infra
UAV-assisted surveying can cover 50–100 hectares per day, cutting field time dramatically for large-scale infrastructure projects.
DEM and contour data are formatted for direct import into SWMM, MIKE FLOOD, and CivilCAD for hydraulic and drainage design.
Ground control point-verified drone surveys achieve ±5cm horizontal and ±8cm vertical accuracy, suitable for all engineering applications.
Survey methodology, accuracy specifications, and report format comply with CPHEEO manual and BIS standards for acceptance by statutory authorities.
HRP Infra's topographic surveys leverage state-of-the-art drone photogrammetry, LiDAR-equipped UAVs, and DGPS total station networks to produce terrain models that exceed Indian infrastructure survey standards. Our survey teams have completed topographic work for projects across Gujarat's varied terrain — from Ahmedabad's flat urban expanse to the undulating Aravalli foothills and coastal regions.
All deliverables are accompanied by accuracy reports, ground control point documentation, and quality certification as required by CPHEEO manuals and PSU project specifications.
Our Methodology
Establish DGPS control benchmarks and ground control points (GCPs) for geodetic accuracy.
Drone photogrammetry or total station survey of terrain features, elevations, and man-made structures.
Agisoft/Pix4D processing of drone imagery into dense point clouds, orthophotos, and DSMs.
Contour lines and Digital Elevation Models produced at specified intervals and resolutions.
Final topographic maps and GIS layers delivered in client-specified formats with accuracy reports.
Our Work
Sabarmati Gas Limited
Detailed topographic survey covering 50+ sq. km for gas pipeline network design in Gandhinagar and Mehsana districts, including contour maps and utility feature mapping.
Municipal Water Supply Projects
Topographic surveys for stormwater master planning and drainage network design across multiple Gujarat municipalities, producing DEMs and watershed delineation maps.
Irrigation & Water Resources
Comprehensive topographic survey for irrigation canal corridor alignment covering 80+ km in Rajasthan, including cross-sections, L-sections, and borrow area identification.
Common Questions
HRP Infra's experienced team will design a terrain mapping solution tailored to your project's scale, accuracy requirements, and design software specifications.
Contact Our Team+91 90168 20264
info@hrpinfra.com
HRP Infra's topographic surveys give your design teams the precise terrain intelligence they need — delivered from Ahmedabad, Gujarat, and across India with drone speed and GPS precision.