Stormwater Connect Sump and No Sump

For more information about this layer please see the GIS Data Catalog. Sump Components--Grate Inlet Type 1: A structure that is rectangular and has a rectangular, metal grate and a Sump; cannot support traffic loads. Interior Dimensions 23" Wide x 42" Long x Variable Depth, 12’ Max.; Max Depth to Pipe invert is 9’ 6”. For more detail see WSDOT Standard Plans (B-35.20-00).--Catch Basin: A structure that functions with a Sump to either allow for water to enter a conveyance or control features or a connection of the stormwater management system to surface or subsurface flows. Catch basins are circular or rectangular and usually have a grated metal lid or cover.No Sump Components--Concrete/Curb Inlet: A square shaped structure similar to a Type 1 Catchbasin without a Sump. These structures are generally used to accept stormwater inflow through a curb opening.--Grate Inlet Type 2: A structure that is rectangular and has a rectangular, metal grate and no Sump; welded grates on this type can only be subjected to light traffic. Interior Dimensions 23" Wide x 42" Long x Variable Depth; Max Depth to Pipe invert is 9’ 7.5”. For more detail see WSDOT Standard Plans (B-35.40-00). --Drop Inlet: A trapezoidal shaped structure without a Sump. Designed with a high hydraulic capacity, these structures are effective in passing large debris. The grates of these structures are generally on grade and accept flow. --Type 2 Inlet: A round shaped structure similar to a Type 2 Catchbasin without a Sump. These structures are generally used to accept stormwater inflow through a curb opening.--Yard Drain: Round or Rectilinear structure with variable interior dimensions that are smaller than those in a Catch Basin Type 1, Type 1P, or Type 2.如需了解该图层的更多信息，请查阅地理信息系统（GIS）数据目录。 集水井组件——1型格栅进水口：一种矩形结构，配有矩形金属格栅与集水井，无法承受交通荷载。内部尺寸：宽23英寸×长42英寸×深度可变，最大深度12英尺；管道内底最大深度为9英尺6英寸。详细信息请参阅WSDOT标准图纸（B-35.20-00）。 ——截水井：一种与集水井配合使用的结构，可用于使水流进入输水系统或管控设施，或是将雨水管理系统与地表或地下水流相连。截水井多为圆形或矩形，通常配有带格栅的金属井盖或盖板。 无集水井组件——混凝土/路缘进水口：一种方形结构，与无集水井的1型截水井类似，此类结构通常用于通过路缘开口接收雨水径流。 ——2型格栅进水口：一种矩形结构，配有矩形金属格栅且无集水井；此类进水口的焊接格栅仅可承受轻型交通荷载。内部尺寸：宽23英寸×长42英寸×深度可变；管道内底最大深度为9英尺7.5英寸。详细信息请参阅WSDOT标准图纸（B-35.40-00）。 ——跌落式进水口：一种无集水井的梯形结构。此类结构设计有较高的水力承载能力，可有效通过大型碎屑，其格栅通常设于地面标高，用于接收水流。 ——2型进水口：一种圆形结构，与无集水井的2型截水井类似，此类结构通常用于通过路缘开口接收雨水径流。 ——庭院排水口：圆形或直线形结构，内部尺寸小于1型、1P型或2型截水井。