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The Stormwater Features Inventory Database (SFID) was developed in response to WSDOT’s 2009 NPDES Municipal Stormwater Permit, issued by the Washington State Department of Ecology. Among other elements, the permit requires WSDOT to maintain an ongoing storm sewer system mapping program for areas within the permit’s jurisdictional boundaries. |
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The Stormwater Features Inventory Database (SFID) was developed in response to WSDOT’s 2009 NPDES Municipal Stormwater Permit, issued by the Washington State Department of Ecology. Among other elements, the permit requires WSDOT to maintain an ongoing storm sewer system mapping program for areas within the permit’s jurisdictional boundaries. |
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WSDOT ESO |
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5000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>This is a view of the Ditch featureclass created with the following query: ( BMPTypeID IS NULL OR BMPTypeID = '24') AND LifeCycleCurrentStatus= 'Active' AND (WSDOTownership in ('Yes', 'Unknown') OR WSDOTownership IS NULL) AND (SWLocationVerified IS NULL OR SWLocationVerified = 'No') This feature class contains WSDOT’s stormwater ditches. A stormwater ditch is a long, narrow excavation dug in the earth for drainage, having a top width less than 10 feet at design flow. This can include various linear conveyances constructed of rock, gravel, earth, concrete, asphalt, or other material using forms, machinery, etc. It can also include a convergence in gradients of impervious surfaces (e.g., in a parking lot) designed to concentrate and convey stormwater. The majority of the data collected so far are within the Phase I and Phase II 2009 NPDES Municipal Stormwater Permit Areas.</SPAN></P></DIV></DIV> |
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| title:
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WSDOT Stormwater Data, View - Office - Ditches |
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["swale","ditch","trench","UIC","treatment/flow control","bio-swale","treatment","conveyance","stormwater","bioswale","stormwater conveyance","Washington State","french drain","infiltration trench","biofiltration swale","flow path","linear sand filter","NPDES Municipal Stormwater permit","BMP","Best Management Practice","flow control","MS4","WA","infiltration","stormwater treatment","Municipal Separate Storm Sewer System"] |
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en-US |
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150000000 |
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