Stormwater Closed Conveyance

For more information about this layer please see the GIS Data Catalog. Closed Conveyance ComponentsPipe: A circular closed pipe that is designed to convey stormwater either by gravity or pressurized flow that is connected to a connect feature on one or both ends of the pipe.Culvert: A Closed Conveyance that drains open channels, Swales, or Ditches for the purpose of passing under a roadway, embankment or other structure. Culverts are not connected to a structure on one or both ends.如需了解该图层的更多信息，请参阅地理信息系统（GIS）数据目录。 封闭输送组件（Closed Conveyance Components）： 管道（Pipe）：为以重力流或压力流方式输送雨水而设计的圆形封闭管道，其一端或两端设有接驳接口，可与其他相关设施相连。 涵洞（Culvert）：一种封闭输送设施，用于排泄明渠、植草沟（Swales）及排水沟渠的径流，功能为从道路、路堤或其他构筑物下方穿行；涵洞的一端或两端均不与其他构筑物接驳。