Existing Ground Risk Calculator
Quantify the financial impact of the “10-day verification gap” and discover how Propeller protects your margins.
Your Total Risk Exposure
$0
Project Basics
Profit Protection (Margin)
Operational Burn (Time)
Beyond the dirt, your equipment burn and the '10-day verification gap' cost you $0.
The Propeller Advantage
By verifying on Day 0, Propeller eliminates the 10-day wait and identifies 'Differing Site Conditions' early enough for Change Order recovery.
Risk Breakdown
How we calculate the risk.
This calculator quantifies three primary cost drivers when original ground data is inaccurate: (1) Profit Protection – on lump sum contracts, unanticipated yardage (the “bust percentage”) means you’re moving dirt for free at your cost-to-move rate; (2) Schedule Creep – extra material extends your timeline based on fleet productivity (150 yds/hr per machine), multiplied by your all-in hourly burn rate covering labor, fuel, ownership, and maintenance; and (3) Discovery Delay – the typical 10-day wait for third-party survey verification while your fleet sits idle, costing you 70% of normal operating expenses during standby. Default assumptions are based on industry benchmarks but can be customized in Advanced Settings to reflect your specific operation