EZ SurveyingGeospatial · Cambodia
Engineering Portfolio · 2023 — 2025

Infrastructure
at national scale.

A selection of geospatial programs delivered across Cambodia — from highway corridors and hydropower to smart-city GIS baselines.

Programs delivered
320+
Provinces engaged
25
Survey kilometers
1,840
Avg. accuracy
± 12 mm
National Highway 5 — 42 km Corridor Survey
Transport
Ministry of Public Works
National Highway 5 — 42 km Corridor Survey
12.7100°N·103.9500°E·2024
Project · 01/2024/Pursat → Battambang

National Highway 5 — 42 km Corridor Survey

End-to-end topographic and DTM capture for a 42 km highway upgrade, combining UAV LiDAR, photogrammetry and a tied first-order GNSS control network.

Coverage map
Length
42 km
Density
240 pts/m²
RMSE
11 mm
Crew days
26
Equipment
  • DJI Matrice 350 RTK
  • Zenmuse L2 LiDAR
  • Tersus TS21 GNSS
  • Sanding Arc7 Total Station
Deliverables
  • .LAS / .LAZ point cloud
  • Bare-earth DTM
  • 1:500 topo plan
  • Cross-section sheets
Topographic surveyDrone LiDAR stripControl networkDTM & cross-sections
Lower Mekong Bathymetric Survey
Hydro
Royal Group Hydropower
Lower Mekong Bathymetric Survey
12.4881°N·106.0188°E·2024
Project · 02/2024/Kratie Province

Lower Mekong Bathymetric Survey

Single-beam bathymetric campaign across a 28 km river bend, delivering depth grids, cross-sections and sediment volumetrics for a run-of-river hydro feasibility study.

Coverage map
Reach
28 km
Resolution
0.5 m
Lines run
186
Accuracy
± 4 cm
Equipment
  • Single-beam echo sounder
  • Tersus GNSS RTK
  • Survey vessel rig
  • Inertial heave compensator
Deliverables
  • Bathymetric chart
  • Depth grid (0.5 m)
  • Sediment volume report
  • Cross-section book
Bathymetric mappingCross-sectionsVolumetric studyHydro feasibility data
Phnom Penh Smart-City GIS Baseline
Urban GIS
Phnom Penh Capital Hall
Phnom Penh Smart-City GIS Baseline
11.5564°N·104.9282°E·2023
Project · 03/2023/Phnom Penh

Phnom Penh Smart-City GIS Baseline

Citywide GIS baseline of 18,400 assets across 12 utility and mobility layers — captured with RTK rovers, validated against the national CORS network.

Coverage map
Assets
18,400
Layers
12
Accuracy
15 mm
Coverage
678 km²
Equipment
  • Luka RTK rovers
  • CORS NTRIP corrections
  • Mobile mapping tablets
  • Field GIS suite
Deliverables
  • Shapefile + GeoJSON
  • Web map portal
  • Attribute schema
  • QA / QC report
Asset inventoryNetwork topologyWeb-GIS publishingRTK validation
Open-Pit Volumetric Monitoring
Mining
Cambodia Iron & Steel
Open-Pit Volumetric Monitoring
13.8079°N·104.9810°E·2024
Project · 04/2024/Preah Vihear

Open-Pit Volumetric Monitoring

Monthly LiDAR overflight cycle delivering classified point clouds, bench geometry and stockpile volumetrics with sub-percent reconciliation against haul records.

Coverage map
Cycles / yr
12
Volume Δ
± 0.4%
Pit area
94 ha
Turnaround
48 h
Equipment
  • Zenmuse L2 LiDAR
  • DJI Matrice 350 RTK
  • Tersus base station
  • Cyclone Register processing
Deliverables
  • Monthly point cloud
  • Volume report
  • Bench DTM
  • Change-detection raster
LiDAR overflightBench geometryStockpile volumetricsChange detection
Stung Treng Dam As-Built Verification
Hydro
EDC Engineering
Stung Treng Dam As-Built Verification
13.5259°N·105.9683°E·2023
Project · 05/2023/Stung Treng

Stung Treng Dam As-Built Verification

Centimeter-grade as-built verification of dam crest geometry, spillway alignment and embankment deformation across two construction milestones.

Coverage map
Crest
612 m
Δ tolerance
± 8 mm
Cycles
2
Stations
84
Equipment
  • Sanding Arc7 robotic 1″
  • Digital level (sub-mm)
  • Tersus GNSS RTK
  • Reflector network
Deliverables
  • As-built drawings
  • Deviation report
  • Verified BIM model
  • Monitoring baseline
As-built surveyDeformation monitoringCrest alignmentSpillway geometry
60 MW Solar Farm Layout & Stake-Out
Energy
Schneider Renewables
60 MW Solar Farm Layout & Stake-Out
11.4533°N·104.5209°E·2025
Project · 06/2025/Kampong Speu

60 MW Solar Farm Layout & Stake-Out

Greenfield setting-out of 142,000 PV table footings across 88 ha — combining drone photogrammetry, RTK stake-out and weekly progress orthos for the EPC team.

Coverage map
Capacity
60 MW
Footings
142,000
Area
88 ha
Tolerance
± 12 mm
Equipment
  • DJI Matrice 350 RTK
  • Luka RTK rovers
  • CORS NTRIP
  • PIX4D Mapper
Deliverables
  • Setting-out plan
  • Weekly orthomosaic
  • Progress dashboard
  • QA report
Greenfield topoRTK stake-outWeekly progress orthoEPC coordination
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