The General Notes include the Basis of Estimate. The Basis of Estimate is necessary for plans preparation and review, for basis of bid preparation, and for control of construction. It should show the basis for estimating each of the pay quantities of the contract, which cannot be directly measured from the plans. These include such items as sprinkling, rolling, blading, lime, fertilizer, asphalt, aggregate, etc., and should include compaction factors and unit weight for flexible base and embankment items when this information is needed for estimating purposes. Sometimes these items are subsidiary and should be indicated as such.

If Basis of Estimate information is shown in the Quantities Summaries sheets at the discretion of the District, then the Best Practice is to not repeat the same information in the Basis of Estimate.