CulvertMaster helps engineers design new culverts and analyze existing culvert hydraulics, from single-barrel crossings to complex multibarrel culverts with roadway overtopping. CulvertMaster computations use HDS No. 5 methodologies, allowing you to solve for whatever hydraulic variables you do not know, such as culvert size, peak discharge, and headwater elevation. Output capabilities include comprehensive detailed reports, rating tables, and performance curves.