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Flexible Pavement Thickness Calculator

Compute the required flexible pavement structural number using the AASHTO 1993 empirical design method. Used by pavement engineers to size asphalt road sections for a given traffic load, subgrade strength, and reliability level.

Design ESALs (applications)

Reliability Level

Subgrade CBR (%)

Serviceability Loss

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Civil

Foundation Bearing Capacity Calculator

Calculate the safe bearing capacity of a shallow foundation given soil properties and foundation geometry. Essential for geotechnical engineers sizing footings to prevent shear failure or excessive settlement.

Soil Cohesion (kN/m²)

Internal Friction Angle (degrees)

Soil Unit Weight (kN/m³)

Foundation Depth (m)

Foundation Width (m)

Factor of Safety

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Key differences

	Flexible Pavement Thickness Calculator	Foundation Bearing Capacity Calculator
Category	Civil	Civil
Inputs required	4	6
Result	Structural Number Required (SN)	Safe Bearing Capacity (kN/m²)
What it does	Compute the required flexible pavement structural number using the AASHTO 1993 empirical design method. Used by pavement engineers to size asphalt road sections for a given traffic load, subgrade strength, and reliability level.	Calculate the safe bearing capacity of a shallow foundation given soil properties and foundation geometry. Essential for geotechnical engineers sizing footings to prevent shear failure or excessive settlement.