Cross Island Transmission Line Mapping

Map and digitize the power line infrastructure

Client

174 Power Global & TG Engineers

Project Type

Infrastructure Mapping & Planimetrics

Location

Cross Island Road, Yona Guam

Project Overview

2cofly was commissioned by 174 Power Global and TG Engineers to conduct a comprehensive aerial survey of the power transmission infrastructure along Cross Island Road in Yona, Guam.

The objective of this project was to map and digitize critical power line assets, including:

Power lines and poles
Pole tops and attachments
Pole locations
Terrain data
Roadways and adjacent infrastructure

This project aimed to provide engineers with precise geospatial data for infrastructure assessment, planning, and future development.

The Challenge

Traditional power infrastructure surveys require extensive fieldwork, manual data collection, and significant time investment. Given the 5-mile length of the transmission corridor, the client needed an efficient and highly accurate solution that would:

Reduce on-site survey time while maintaining high precision
Provide a comprehensive 3D representation of assets and terrain
Digitize power infrastructure for future planning and development

To meet these requirements, 2cofly utilized advanced LiDAR sensing technology, ensuring a high level of detail and accuracy.

Approach & Methodology

LiDAR Aerial Mapping

2cofly deployed drone-mounted LiDAR sensors to capture high-density point cloud data of the transmission line corridor. Compared to traditional ground surveys, LiDAR technology enabled us to map the entire 5-mile infrastructure with unparalleled efficiency and precision.

3D Point Cloud & Data Processing

Using LiDAR, we generated a high-resolution, colorized 3D point cloud of the entire power line corridor. This dataset provided a highly detailed and georeferenced model of:

Power poles and lines
Pole tops and hardware attachments
Ground elevation and terrain data
Adjacent infrastructure such as roads and vegetation

Vectorization & Asset Classification

Through advanced data processing software, our team classified and vectorized the assets within the 3D dataset. This step was essential in translating raw LiDAR data into actionable, engineering-grade information that could be used for design, planning, and asset management.

Results & Project Impact

Enhanced Infrastructure Planning

The digitized power line data allowed engineers to analyze existing conditions with high accuracy, supporting better planning and maintenance strategies.

High-Precision Mapping

LiDAR technology provided centimeter-level accuracy, enabling precise measurements of pole heights, wire sag, and clearance distances—critical data for electrical grid analysis.

Faster & Safer Data Collection

Drone-based LiDAR mapping significantly reduced the time required for surveying while eliminating the need for personnel to work in hazardous roadside conditions.

Comprehensive 3D Visualization

With a fully classified 3D model, engineers could visualize and manipulate data within CAD and GIS platforms, allowing for seamless integration into infrastructure planning workflows.

Conclusion

By leveraging drone-mounted LiDAR technology, 2cofly delivered a highly accurate and efficient power infrastructure mapping solution for 174 Power Global and TG Engineers. The ability to digitize and analyze the transmission network will aid in future upgrades, maintenance planning, and long-term asset management.

For organizations requiring precise aerial mapping, LiDAR surveys, or infrastructure digitization, 2cofly provides customized drone solutions that enhance efficiency, accuracy, and safety.

2cofly (pronounced Ecofly) is Micronesia's leading drone service and education provider. Our core competency lies in remote sensing via various sensing technologies such as photogrammetry, LiDAR, thermal and more.

Few key deliverables we can output with our drones & sensors: