The importance of elevation data for infrastructure projects

Written by
Brooke Hahn
October 22, 2024

When planning and constructing infrastructure projects, whether it's roads, bridges, or large-scale developments, having accurate elevation data is essential. Without precise knowledge of the terrain and its contours, projects can face delays, cost overruns, or even failures. That's why digital elevation models (DEMs) and other forms of elevation data play such a vital role in ensuring the success of these ventures.

Let’s take a closer look at why elevation data is crucial for infrastructure projects and how it can make or break development plans.

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What is elevation data?

Elevation data provides a detailed understanding of the terrain by capturing the height of land features. This data is typically presented in the form of a Digital Elevation Model (DEM), which is a 3D representation of the land surface. DEMs are built using data collected from various methods, including aerial surveys, satellite imagery, and drone mapping.

For infrastructure projects, accurate DEMs allow engineers and planners to assess the topography and develop designs that work harmoniously with the natural environment, reducing the risk of unexpected complications.

Why is elevation data important for infrastructure?

1. Planning and design

Before the first shovel hits the ground, elevation data helps planners understand the terrain’s shape, slope, and elevation differences. This information is critical when determining the best locations for roads, bridges, or buildings. For instance, a steep slope might require additional reinforcement or grading work, while flat areas might be more suitable for large structures. Accurate elevation data also helps with determining cut-and-fill requirements, reducing both waste and costs.

2. Flood risk management


Infrastructure projects must account for potential natural disasters, especially floods. By using elevation data, engineers can model water flow and floodplains to identify vulnerable areas. This data enables better planning for drainage systems, levees, and flood barriers, protecting communities from the risks of floods. Whether it’s designing bridges that can withstand storm surges or planning residential areas outside of flood zones, understanding terrain elevations is key.

3. Earthwork calculations


Earthmoving is a major component of most infrastructure projects. Whether it’s clearing land for roads or preparing a site for building construction, knowing the volume of material to move is vital for budgeting and project timelines. Accurate elevation data allows for precise cut-and-fill calculations, ensuring that projects avoid the costly mistake of underestimating or overestimating earthworks.

4. Road and rail construction


For road and railway construction, a clear understanding of elevation changes is necessary for both safety and efficiency. Sharp elevation changes can affect the design of a road or rail line, influencing factors such as gradient, curve radius, and the need for retaining walls or tunnels. By using elevation data early in the planning process, engineers can design routes that minimize these costly and potentially hazardous elements.

5. Slope stability and erosion control


In hilly or mountainous areas, slope stability is a significant concern. Elevation data helps engineers assess which areas might be at risk for landslides or erosion. By analyzing terrain elevation, slope angles, and soil composition, they can make informed decisions about where to reinforce slopes, build retaining walls, or re-route infrastructure to avoid unstable areas.

How Birdi simplifies elevation data analysis

You don’t need to be an expert in geospatial technology to work with elevation data. Birdi’s platform is designed to make it easy for anyone involved in infrastructure projects to visualize and analyze terrain. With our user-friendly DEM tools, you can upload drone-captured data and quickly visualize and process it it in 2D or 3D - including generating DEMs directly within the platform.

This data can be combined with other information, such as slope stability reports, allowing you to make informed decisions about your project from planning through to completion. Whether you’re assessing terrain for a new highway or evaluating potential risks in an urban expansion, Birdi provides the tools to ensure your data is both accurate and actionable.

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Elevation data is an indispensable asset for infrastructure projects. From the initial planning stages to flood risk assessments and earthworks calculations, having accurate and easy-to-use elevation models ensures projects are built on solid foundations—literally. Birdi helps streamline this process, enabling teams to make quick, informed decisions and avoid the pitfalls of poor terrain analysis.

Brooke Hahn
Brooke has been involved in SaaS startups for the past 10 years. From marketing to leadership to customer success, she has worked across the breadth of teams and been pivotal in every company's strategy and success.