SITEWORK CONTRACTOR WEATHER DELAY CASH FLOW IMPACT.
Weather delays on sitework are not just scheduling problems. They are financial problems. Every rain day costs crew standby, equipment idle time, and erosion control maintenance — against no billable production. When those costs are not documented, not billed where contractually possible, and not planned for in the cash forecast, they come directly out of net margin on every project that runs through wet season.
Most sitework contractors absorb weather delay costs without question because they assume the risk is theirs. Sometimes it is. But owner-caused delays, delays from other trades clearing areas, and delays caused by conditions materially different from contract documents all have potential cost recovery. The contractors who recover those costs are the ones with documentation systems that run automatically.
WHAT WEATHER ACTUALLY COSTS A SITEWORK CONTRACTOR — LINE BY LINE.
Crew Standby — The Largest Single Line Item
A sitework crew on standby costs 60–80% of their active production rate. Foremen and superintendents are salaried or guaranteed. On a 6-person crew at $38/hour fully burdened average, a full-day weather standby costs $1,824. Three weather standby days in a month is $5,472 against zero billable production. Across a 5-month wet season, that is a meaningful margin line that should be in the cash forecast — not discovered after the fact.
Equipment Idle Time — Depreciation and Insurance Continue
Equipment on a wet sitework project does not stop generating ownership cost. A $180,000 excavator on a 6-year depreciation schedule generates $82/day in depreciation whether it is running or not. A 10-day weather delay on a project where the excavator is committed generates $820 in idle depreciation cost before maintenance and insurance. When this cost is not tracked and not in the cash forecast, it becomes a surprise margin erosion at project close.
Erosion Control Maintenance After Weather Events
Wet weather damages erosion controls. Silt fence fails under heavy rain. Inlet protection fills and requires cleaning. The maintenance and reinstallation cost is real labor and material cost. Whether it is the contractor's obligation or a billable event depends on whether the original scope included maintenance for the rainfall intensity that occurred and whether construction activity outside the original plan caused the damage. Most sitework contractors absorb these costs without asking the question. Document the cause before deploying the crew.
WHAT TO DO WHEN THE RAIN STARTS — IN THIS ORDER.
The cash forecast implication: Weather delay costs are predictable in aggregate. A sitework contractor in a market with 45 wet days per year should have those 45 days modeled in the 13-week cash forecast as reduced production weeks — so the LOC draw in February is planned in November, not discovered when payroll is due.
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