critical heightcritical hydraulic gradientcritical length of gradecritical loadcritical pathcritical path methodcritical pointcritical pressurecritical rangecritical roughness heightcritical saturationcritical sectioncritical slopecritical soil gradientcritical statecritical storm periodcritical stresscritical surfacecritical tractive forcecritical vacuumcritical velocitycritical velocity of ground watercritical zonecrookednesscrop outcrosscross beddedcross bendingcross bracingcross eyed axescross fallcross flexibilitycross hatchingcross productcross reactioncross sectioncross section areacross section area of a wellcross section of a streamcross slope ditch systemcross stiffnesscross walk markingcross wallcross wavecrossbarcrossbeamcrossingcrossing guardcrossovercrossroad