“Propeller is going to save us a lot of time and money on this project. Now, our in-house GIS/grade control coordinator doesn’t have to sit for three hours processing surveys.”
Patrick Schultz
Assistant Project Manager for Grade and Quality Control
Bid with precision and win with confidence
Retire reliance on outdated topo maps or “gut feelings.” Use high-accuracy site data to verify quantities, identify hidden risks, and create defensible bids that protect your margins.
“When I’m going on a job walk, it’s pretty hard to say that you’ve walked every piece. With Propeller, it eliminates that risk. It gives you that knowledge without stepping foot on site.”
Adam Cotton
Regional Director of Safety & Health
“We believe that investing in cutting-edge technology is key to staying ahead of the curve, and our partnership with Propeller is a testament to that.”
Michael Clark
Director of Field Engineering
Saved weekly on surveying + reporting
Survey turnaround time
Saved on a single project
Customer examples; results vary by project and workflow.
Propeller is your competitive advantage during the tender phase
Verify site conditions instantly
Don’t inherit the owner’s mistakes. Compare current ground surveys against provided topo plans to identify discrepancies in earthwork volumes before you sign the contract.
Accelerate your take-offs
Turn drone flights or ground surveys into actionable volume data in 24 hours. Respond to RFPs faster and with more granular detail than competitors using traditional methods.
Eliminate “scope creep” early
Use 3D visual evidence to highlight areas where the design doesn’t match reality. Secure change orders early in the process rather than fighting for them after the work is done.
Conduct fast, accurate site take-offs
- Calculate site-wide cut and fill requirements with survey-grade precision.
- Use polygon tools to isolate specific sections of a project for targeted pricing.
- Identify the exact balance of material on-site to minimize the need for imported fill or costly exports.
- Export high-resolution orthomosaics to use as the base for your bidding presentations.
Features
- Area & Volume Take-offs
- Cut/Fill Heatmaps
- Material Balancing
- Site Documentation
Compare “As-Is” terrain to Design Intent
- Overlay the proposed design (TIN or DXF) onto a current 3D map of the existing ground.
- Visually flag areas where the proposed grade requires more (or less) work than the bid documents suggest.
- Use cross-section tools to view vertical discrepancies between the original ground and the final design.
- Catch errors in the bid-build documents before they become your financial liability.
Features
- Design-to-Terrain Comparison
- Cross-Section Analysis
- TIN Surface Overlays
- Discrepancy Flagging
Validate subcontractor and vendor quotes
- Use objective, 3D data to verify the quantities submitted by third-party estimators or subcontractors.
- Ensure everyone is bidding on the same, accurate baseline of information.
- Use the platform as a collaborative workspace where subs can view the site virtually to provide more accurate pricing.
- Create a historical record of the site at the moment of bid for future dispute resolution.
Features
- Multi-User Collaboration
- 3D Measurement Tools
- Historical Survey Benchmarking
- Shareable Map Links
Forecast productivity and equipment needs
- Use existing site terrain data to model haul routes and estimate cycle times.
- Determine exactly which machine classes (scrapers vs. articulated trucks) are most efficient for the specific topography of the job.
- Provide owners with a data-backed schedule of values based on actual site geometry.
- Build “what-if” scenarios to see how different staging plans impact earthwork costs.
Features
- Slope & Grade Analysis
- Haul Route Planning
- Equipment Selection Insights
- Staging Visualization
Trusted data for every stage of the bid
Whether you are doing a high-level feasibility study or a final, binding quote, Propeller provides the resolution you need.
Pre-Bid Surveys
Capture the baseline
Fly a drone or use a rover to establish the “Ground Zero” of the project. Process data through Propeller to get an undisputed record of the site before your machines ever arrive.
Historical Comparison
Leverage past project data
Access your library of past projects within Propeller to compare similar terrain types and soil conditions, allowing for more accurate historical cost-per-yard estimating.
Stop guessing and start bidding with 3D certainty
FAQs
Yes, Propeller supports DXF, TTM, and LandXML formats, allowing you to overlay designs directly onto your current site survey.
When using AeroPoints and Propeller PPK, you achieve survey-grade accuracy (1/10ft or 3cm), which is more than sufficient for defensible earthwork take-offs.
Absolutely. You can export contours, point clouds, and terrain models (TTM, DXF) to use in HeavyBid, B2W, or other estimation tools.
By documenting the site state at the time of the bid, you have a “visual receipt” to prove when site conditions differ from the contract documents.