Bottomless culverts can have a span ranging from feet to more than 35 feet. a hard surface (typically concrete) floor, the culvert bottom is the natural stream . through the culvert opening, and flow distribution in the culvert cross section.
Open bottom box culverts and other structures for saltwater and aggressive soil Performance proven in over 15, installations internationally; Bottomless.
as the bottom of the culvert. • Culverts 20' or greater in width are included in Bridge Maintenance Inventory. • Function hydraulically like a bridge unless they are.