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NOAA climate normals count rain days by month at more than 15,000 stations. This example turns Chicago O'Hare's counts into a work-day weather allowance.
4.8 Dec · -9.4% on the period
May averages the most rain days at Chicago O'Hare
Average days per month with 0.10 inch or more of precipitation, 1991-2020 normals
Feature Data
A fuel price adjustment pays for estimated gallons at the change in a diesel index. This example prices 160,000 cubic yards of earthwork.
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A worked example of the Corps of Engineers equipment rate method prices a $400,000 excavator at $93.99 an hour and $21.59 on standby.
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An escalation clause moves a fixed price with a named BLS index. This example adjusts $1.2 million of steel with a 3% trigger and a 10% cap.
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Change order rate divides approved change orders by the original contract. This example splits it by job and by cause across six jobs.
| Date | Trend | Category | Title | Summary |
|---|---|---|---|---|
| Data | How to set monthly weather delay days from NOAA climate normals, with a Chicago O'Hare example | NOAA climate normals count rain days by month at more than 15,000 stations. This example turns Chicago O'Hare's counts into a work-day weather allowance. | ||
| Data | How to tie a fuel price adjustment to EIA diesel prices, with a 160,000-cubic-yard earthwork example Feature | A fuel price adjustment pays for estimated gallons at the change in a diesel index. This example prices 160,000 cubic yards of earthwork. | ||
| Data | How to compute an hourly rate for owned equipment with the Corps of Engineers method, with a $400,000 excavator example | A worked example of the Corps of Engineers equipment rate method prices a $400,000 excavator at $93.99 an hour and $21.59 on standby. | ||
| Data | How to tie a steel escalation clause to a BLS producer price index, with a $1.2 million example | An escalation clause moves a fixed price with a named BLS index. This example adjusts $1.2 million of steel with a 3% trigger and a 10% cap. | ||
| Data | How to measure change orders as a percent of original contract by cause, with a $100 million example | Change order rate divides approved change orders by the original contract. This example splits it by job and by cause across six jobs. |