Orthoimagery, Elevation, and CAD-Ready Deliverables

Logo for Hard Hat Aerial Services featuring a yellow construction helmet above the words 'HARD HAT' in white and yellow, with 'AERIAL SERVICES' written below in smaller white text.
An aerial view of a construction site with a partially built structure featuring white beams and green walls, surrounded by parked vehicles, construction materials, and dirt pathways, with trees and open land in the background.

Supportive data built for surveyors, engineers and contractors: Orthomosaics, DSM/DTM surfaces, Contours, point clouds, and CAD/GIS exports-ready to measure, plan, and design.

You’re not buying drone deliverables — you’re buying time back.
My job is to capture dense site data quickly and safely, so your crew can focus on control, boundary, and the high-value judgment work.

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Where You Save Time

  • Fewer boots-on-ground hours on large sites (topo context, features, grading areas)

  • Faster mobilization (capture in one flight window vs extended field days)

  • Less return-tripping (dense imagery/point cloud reduces “we missed that” moments)

  • Drafting efficiency (your drafters get consistent, organized datasets)

How I Fit Into a PLS Workflow

  • RTK capture by default for consistent, real-world positioning.

    If you need tighter verification I’m equipped with GNSS receivers to collect GCPs/check points and will incorporate them into processing and provide a checkpoint comparison summary if requested.

Legal-safe note:
Boundary determination and legal surveying services are performed and certified by a Maryland-licensed Professional Land Surveyor (PLS). My role is survey-support data capture and deliverable preparation under your workflow.

Risk You’re Mitigating

  • Traffic corridors / roadside work: reduce exposure time

  • Steep slopes, unstable ground, stockpiles: less time near hazards

  • Active construction sites: minimize interaction with equipment

  • Difficult access (mud, brush, fenced areas): capture without forcing entry

Value Added

  • Drafting-ready context (orthos + point cloud + surfaces)

  • Better planning before field crews return (targeted follow-ups)

  • Repeatable progress/as-built documentation (same deliverables each visit)

  • Cleaner communication with engineers/contractors (visuals everyone understands)

Survey-Support Data Capture

  • 2D Orthomosaic (GeoTIFF / PDF)

    Measurable aerial map aligned to real-world coordinates.

  • A screenshot of a CAD software displaying a topographical map with contour lines, property boundaries, and some structures, viewed in wireframe mode on a dark background.

    DSM / DTM Surface Models

    Elevation surfaces for topo, drainage review, and planning.

  • Aerial view of houses with a landscape overlay including contour lines and elevation points.

    Contours

    Clean contours derived from DTM (bare earth) when required.

  • 3D laser scan of a historic building or castle on a hill, surrounded by terrain, with a dark background and color spectrum scale at the top.

    Point Cloud (LAS/LAZ)

    Dense point cloud for survey workflows and CAD/GIS use.

  • A 3D model of a large church with red brick walls, multiple roof sections, and a prominent central dome with a cross on top, surrounded by parking lot and landscaped area.

    3D Mesh / Textured Model

    Great for visuals, site context, and stakeholder communication.

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Sample Data & Capabilities Sheet

Use Cases

  • Construction progress & documentation

  • Earthwork / grading verification

  • Stockpile & volume tracking (monthly/weekly)

  • Pre-design site context

  • Survey support (control-based flights as needed)

  • As-built mapping & existing conditions

WorkFlow

  1. Scope & deliverables (what formats + accuracy target)

  2. Flight plan + site coordination

  3. RTK flight + optional GCP/check points

  4. Processing + QA/QC

  5. Delivery + revisions

Accuracy + Control

Accuracy depends on site conditions and control. Projects can be flown using RTK and verified with Ground Control Points (GCPs)/Check Points when required. I can provide a simple accuracy summary and checkpoints on request.

Frequently Asked Questions

  • Accuracy depends on site conditions (vegetation, texture, lighting), flight altitude/GSD, and whether the project uses RTK and/or ground control. I can deliver RTK-based mapping and, when required, integrate GCPs/check points for verification and an accuracy summary.

  • Yes—when the project calls for survey-grade verification or tighter tolerances. Many construction progress and planning jobs can be done RTK-only. For survey support work, I can fly to your surveyor’s control and include check points to verify results.

  • An accuracy summary is a brief report comparing known check points (ground truth) to the mapped coordinates from the deliverable. It typically includes a check point table and summary statistics like horizontal and vertical RMSE, plus notes on site conditions.

  • I can deliver in the coordinate system you specify (commonly State Plane / NAD83 or project-specific control). If you’re unsure, I can deliver in a standard system and/or match your surveyor’s control when provided.

  • Yes—deliverables can be provided in formats that import cleanly into Civil 3D/Carlson workflows (surface grids/point data, contours, breaklines where applicable). If you have a preferred template, units, or layer naming, I can follow it.

  • Common deliverables include:

    • Orthomosaic: GeoTIFF, PDF

    • Point cloud: LAS/LAZ

    • Surfaces (DSM/DTM): GeoTIFF, XYZ/CSV, and CAD/GIS-compatible formats as needed

    • Contours / linework: SHP, DXF/DWG (project dependent)
      If you tell me your software (Civil 3D, Carlson, ArcGIS/QGIS), I’ll format exports accordingly.

  • I can provide both:

    • DSM = top surfaces (ground + vegetation/objects)

    • DTM (bare earth) = filtered surface intended to represent ground
      Bare-earth accuracy depends on vegetation density and data quality; heavily wooded areas may require additional methods or expectations.

  • Yes. I can compute stockpile volumes and cut/fill when you provide a baseline surface (previous scan, design surface, or existing ground). Deliveries can include a simple volume report and supporting surfaces.

  • Typical turnaround is 2–5 business days depending on acreage, deliverables, and weather/site access. Rush options may be available for smaller sites.

  • Common factors include wind, low light, reflective surfaces (water/glass/metal roofs), repetitive textures, and heavy vegetation. I plan flights to reduce these issues and run QA checks before delivery.

  • I provide mapping and geospatial deliverables for construction and survey support. Boundary determination and legal surveying services must be performed and signed by a licensed professional land surveyor (PLS). I’m happy to work under a surveyor’s direction and control when needed.