CONSTRUCTION SLOPE · 9 TOOLS
Construction Slope Calculators
Construction slope calculators: road gradients, pipe slope with full-bore velocity and capacity, pipe fall and invert levels between manholes, accessible ramp lengths to ADA and UK Part M, excavation and roof slopes, and survey levelling: elevation difference by angle and level difference from staff readings.
Elevation Difference CalculatorCalculate the elevation difference between two points from horizontal distance and vertical angle, with instrument and target heights and slope distance. Free accountExcavation Slope CalculatorCalculate the required excavation slope setback for the soil type (OSHA A, B, C), the batter face length and area, and check a measured slope on site. Free accountInvert Level CalculatorCalculate the downstream invert level of a pipe between manholes from upstream invert, length and gradient, with depth to invert and cover at both ends.Level Difference CalculatorCalculate reduced levels and level differences from staff readings by the height of instrument method: benchmark, backsight and up to four foresights. Free accountPipe Fall CalculatorCalculate pipe fall from length and gradient (1 in N, %, mm per m or inches per foot), the downstream invert level, and invert levels at regular intervals.Pipe Slope CalculatorCalculate pipe slope from invert levels and length, then full-bore velocity and flow capacity by Manning's equation with a self-cleansing velocity check.Ramp Slope CalculatorCalculate wheelchair ramp length for a rise at 1:12, 1:15 or 1:20, with the number of flights and landings to US ADA or UK Part M limits, or your own.Road Gradient CalculatorCalculate road gradient from chainages and levels as a percentage, 1 in N ratio and angle, and the road length needed to keep within a maximum grade.Roof Slope CalculatorConvert roof slope between x/12 pitch, degrees, percent and ratio, and get the ridge rise and rafter length for your span, plus minimum shingle pitch. Free account