Aerial Mapping (Unmanned Aircraft System)

Large, complex, or difficult-to-access project areas present real challenges for conventional survey methods. Coverage takes longer, costs more, and puts field crews in demanding conditions. UAS-based aerial mapping gives project teams a faster, safer path to accurate topographic and terrain data across wide project extents, without sacrificing the detail and reliability that engineering, planning, and design work requires. The result is usable site information earlier in the project lifecycle, when it has the most value.

DLZ’s aerial mapping teams use UAS LiDAR and photogrammetric technology to capture existing conditions, develop terrain models, and produce a range of geospatial deliverables tailored to project needs — including digital terrain models, contour mapping, orthophotos, and surface models. From linear infrastructure corridors to industrial campuses and active construction sites, we match the right approach to each project and deliver data that feeds directly into engineering, GIS, and construction workflows. Repeated flights also support progress monitoring and change detection throughout the construction phase.

Featured Capabilities

Topographic Mapping and Existing Conditions_Woodridge Town Centre Topo

Topographic Mapping & Existing Conditions Documentation

Getting accurate, current terrain data early in a project supports better planning, design, and permitting decisions. DLZ uses UAS LiDAR and photogrammetric mapping to document existing site conditions across large or difficult-to-access areas, providing a reliable representation of terrain and surface features that gives project teams a more efficient path to usable topographic information.

Terrain Modeling, Contours & Surface Deliverables

Accurate surface data reduces uncertainty and improves coordination across project disciplines. DLZ develops digital terrain models, contour mapping, and surface deliverables tailored to project requirements, supporting grading, drainage analysis, site design, earthwork planning, and infrastructure development from early design through construction.

Corridor and Linear Infrastructure Mapping NEORSD SRRS

Corridor & Linear Infrastructure Mapping

Roadways, rail, pipelines, transmission corridors, and drainage paths cover large extents that are difficult to document efficiently with conventional methods. DLZ uses UAS LiDAR and photogrammetric mapping to capture linear assets with consistent coverage and usable data density, helping project teams assess conditions, plan improvements, and manage infrastructure more effectively across long project limits.

Industrial Site, Facility & Campus Mapping

Large developed sites — industrial properties, operating facilities, plants, and campuses — often need broad-area documentation to support expansion planning, utility coordination, stormwater review, and site management. DLZ provides aerial mapping that delivers the information needed for planning and engineering while minimizing disruption to active site operations.

Construction Progress Monitoring and Earthwork Qualities NEORSD

Construction Progress Monitoring & Earthwork Quantities

Keeping owners, contractors, and project teams aligned on construction status requires current, reliable site information. DLZ conducts repeated UAV flights to document progress, evaluate grading and earthwork activity, assess stockpile conditions, and track site changes throughout the construction lifecycle, giving all stakeholders a clearer, shared basis for decision-making.

Remote Difficult to Access and Safety Sensative Area Capture Logan Mill Civil3D Deliverable

Remote, Difficult-to-Access & Safety-Sensitive Area Capture

Some project areas are too steep, congested, active, or restricted for safe conventional field work. DLZ uses UAV-based data collection to gather reliable site information in challenging environments, reducing personnel exposure and field time while still delivering the detail clients need for planning, engineering, and analysis.

Related Work

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