Project Overview

GeoTech Engineering Ltd. recently completed a comprehensive pre-construction and hydrographic survey across critical infrastructure sites in Bangladesh. The project focused on the Boga Bridge Pre-Construction Survey and the Bangladesh-China Friendship 9 Bridge corridor, incorporating advanced technologies to ensure data accuracy and structural planning excellence.

Services Delivered

• Boga Bridge Pre-Construction Survey – Full topographical and engineering analysis.
• Bangladesh-China Friendship 9 Bridge Survey – Structural survey including alignment and elevation data.
• LiDAR Drone & Oblique Drone Survey – 3 square kilometers of high-resolution aerial mapping.
• River Survey (Bathymetry) – 3 kilometers of underwater terrain profiling using sonar and RTK GPS.
• TBM Adjustment & GPS Control – Accurate benchmark re-establishment and reference network creation.
• Benchmark Level Fly (BM Leveling) – 7 kilometers of drone-aided elevation mapping.

Why Pre-Construction Surveys are Essential

Before breaking ground on bridge infrastructure in Bangladesh, conducting a bridge pre-construction survey is critical. These surveys reduce risk, help engineers identify geotechnical and structural challenges, and ensure project feasibility. From terrain analysis to elevation mapping, they provide reliable data for optimized design, cost estimation, and execution planning.

Especially in flood-prone and river-heavy regions, pre-construction and bathymetric surveys aid in:

• Identifying soil and water dynamics
• Mapping riverbed elevations
• Preventing structural failures or cost overruns
• Ensuring environmental and hydrological compliance

Why Choose GeoTech Engineering Ltd.?

With a team of certified surveyors, geotechnical engineers, and drone specialists, GeoTech Engineering Ltd. brings high accuracy and fast execution to large-scale infrastructure projects. Our use of LiDAR, RTK GPS, and drone photogrammetry ensures results that meet international standards. We also provide post-survey reports, modeling, and GIS-compatible datasets.

• ✔️ Decades of Experience in Bangladesh’s Terrain
• ✔️ Certified Equipment & Processes
• ✔️ Fully Customizable Reporting & Mapping Solutions
• ✔️ Proven Track Record in Public and Private Sector Projects

Project Impact

The project data we delivered contributed to safer bridge design, accurate cost modeling, and a reduced environmental footprint. With improved terrain intelligence and river flow data, our clients made better decisions, faster. This initiative marks a step forward in Bangladesh’s smart infrastructure planning.

Contact Us

Interested in conducting a pre-construction or river survey for your upcoming project? Trust GeoTech Engineering Ltd. to provide precise, professional, and prompt results.