Calculators
6 free tools for cold-region civil & structural work. Each shows its method and references — confirm against the governing code before design use.
Frost Depth
Modified Berggren
Estimate design frost penetration depth from the air-freezing index and soil properties — the signature cold-region foundation question.
Snow Load
ASCE 7-22
Ground snow → flat-roof → sloped-roof snow load, with representative Alaska ground-snow values built in.
Seismic Base Shear
ASCE 7-16
Design spectral accelerations and equivalent-lateral-force base shear — essential in the most seismically active state in the U.S.
Frost Heave Susceptibility
USACE F1–F4
Classify a soil's frost-heave susceptibility (USACE groups F1–F4 with the Casagrande screen) from its gradation.
Beam Check
Statics
Simply-supported beam moment, shear, deflection and bending stress — with an optional allowable-stress check.
Unit Converter
Reference
Fast conversions across the units engineers actually use — force, pressure/stress, moment, distributed load, and more.