Web services > Washington (State)--King County > 2025-present

Connect Sump and No Sump [Washington (State)--King County]

King County GIS Open Data · 2026 Full Details

Full Details

Title
Connect Sump and No Sump [Washington (State)--King County]
Description
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.
Creator
King County
Publisher
King County GIS Open Data
Temporal Coverage
Last Modified: 2026-01-08
Date Issued
2025-09-03
Rights
Use Constraint: King County data are made available with the understanding that they shall be used exclusively by the obtainer or their authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Access Rights
Public
Format
ArcGIS FeatureLayer
Language
English
Date Added
January 09, 2026
Provenance Statement
The metadata for this resource was last retrieved from King County GIS Open Data on 2026-01-08.

Location

Cite and Reference

  • Citation
    King County (2025). Connect Sump and No Sump [Washington (State)--King County]. King County GIS Open Data. (web service)
  • BTAA Geoportal Link

View more items like this one...

Inlets [Washington (State)--Seattle]

2026

Aba Rem Catch Basins [Washington (State)--Seattle]

2026

Catch Basins [Washington (State)--Seattle]

2026

Proposed Catch Basins [Washington (State)--Seattle]

2026

Aba Rem Inlets [Washington (State)--Seattle]

2026

Proposed Inlets [Washington (State)--Seattle]

2026

Aba Rem Sandboxes and Junction Boxes [Washington (State)--Seattle]

2026

Aba Rem Trash Racks [Washington (State)--Seattle]

2026

Trash Racks [Washington (State)--Seattle]

2026

Proposed Sandboxes and Junction Boxes [Washington (State)--Seattle]

2026