Verdantas extends its surveying expertise below the waterline with bathymetric and hydrographic surveys across rivers, reservoirs, channels, and coastal environments. We combine vessel-mounted single-beam and multibeam sonar systems with UAV-based bathymetric green LiDAR to capture high-precision depth, shoreline, and underwater terrain data. Because every survey is performed by experienced survey professionals and tied to survey-grade control, we deliver accurate, defensible results while reducing the need for manual, in-water data collection. 

From topo-bathy surface models and volume calculations to dredge-quantity surveys, profiles, and cross sections, we transform raw measurements into GIS- and CAD-ready hydrographic mapping products. A standardized processing workflow—including point classification, geodetic control, quality assurance, and error reporting—ensures every dataset is consistent, repeatable, and fully documented. 

That data supports dredging programs, floodplain analysis, coastal erosion studies, sedimentation monitoring, and reservoir and watershed management initiatives. And because our hydrographic specialists work alongside in-house environmental scientists, water resources engineers, and survey teams, clients gain more than depth measurements alone—they gain a complete understanding of how aquatic systems interact with the broader watershed, supporting smarter planning, design, and management decisions.