| snippet:
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In the polygon data, Facility Footprints details the footprint of the swale, permeable pavement, and rain garden features. Each polygon has an associated drain line feature that is used to show the basic direction that drainage flow may be travelling |
| summary:
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In the polygon data, Facility Footprints details the footprint of the swale, permeable pavement, and rain garden features. Each polygon has an associated drain line feature that is used to show the basic direction that drainage flow may be travelling |
| extent:
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[[-122.437043070229,47.4777509290869],[-122.229311796356,47.7646217105928]] |
| accessInformation:
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Seattle Public Utilities |
| thumbnail:
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thumbnail/thumbnail.png |
| typeKeywords:
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["Data","Service","Map Service","ArcGIS Server"] |
| description:
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The DWW GSI layer consists of line and polygon representations of the following features: Swales (biofiltration, bioretention, biofiltration/bioretention, and conveyance) are generally shallow depressions with a designed mix of soil and plants which break down pollutants through natural processes while reducing runoff. Permeable pavement is a paving system which allows rainfall to percolate into an underlying soil or aggregate storage reservoir. Underdrain piping systems are provided to prevent prolonged ponding of stormwater or to collect and convey water to another facility. Rain gardens are less engineered systems that are designe to mitigate water from the sidewalk only and have two inches or less of ponded depth. The drainage structures represented in the GSI points are not all unique to GSI, however, they are specifically part of SPU GSI projects. |
| licenseInfo:
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| catalogPath:
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|
| title:
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SPU_Green_Storm_Infrastructure |
| type:
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Map Service |
| url:
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|
| tags:
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["GSI","Green Storm Infrastructure","SPU"] |
| culture:
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en-US |
| name:
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SPU_Green_Storm_Infrastructure |
| guid:
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642E3873-1730-4123-B8AA-6642EDE008F1 |
| spatialReference:
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NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601_Feet |