TOS elevation at any point between two known elevations on a constant slope — result in decimal feet and feet-inch-sixteenths, with the slope printed three ways.
Linear interpolation on a constant slope: TOS(x) = TOS_A + (TOS_B - TOS_A) × (x / run). Layout aid; verify against contract elevations/datum.
Verify with project engineer, contract documents, and applicable code/specification. Estimating aid only — not a design tool, not legal advice.
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