Slope & Gradient Formulas
text{Grade}% = frac{text{Rise}}{text{Run}} times 100; quad theta = arctanleft(frac{text{Rise}}{text{Run}}right); quad L_{slope} = sqrt{text{Rise}^2 + text{Run}^2}
Engineering Specifications & Method of Calculation
Highway, drainage pipe, and ramp slope calculation tool providing instant gradient ratios, pitch angles, and accessibility verifications.
Slope and Gradient Standards
Drainage pipes typically require 1% to 2% minimum gradient. ADA wheelchair ramps mandate a maximum slope ratio of 1:12 (8.33% grade).
Frequently Asked Questions
What is the maximum slope allowed by ADA for access ramps?
The maximum allowable slope under ADA guidelines is 1:12 (8.33% or 4.76 degrees).