a vertical pipe or weir within the embankment of a storm water wetland that is used to regulate the storm water discharge from the structure for specified design storm(s)
The vertical stair member between two consecutive stair treads In plumbing, a vertical pipe
structural member consisting of the vertical part of a stair or step a vertical pipe in a building a person who rises (especially from bed); "he's usually a late riser
The vertical panel between each step of an enclosed stair Open stairs have no riser panels Also refers to the combination of all vertical elements, treads and landings Two steps and a landing equal three risers Local codes require a handrail if more than two risers within a stair section Sections are considered separate if the landing is more than 3 to 4 feet between stair sections, depending on other conditions