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Maintained by MDOT's SHA, these features represent actual, physical features (pipes and ditches) and database connectivity features (hydraulic connectors) along State owned and maintained properties. |
| summary:
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Maintained by MDOT's SHA, these features represent actual, physical features (pipes and ditches) and database connectivity features (hydraulic connectors) along State owned and maintained properties. |
| accessInformation:
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MDOT, SHA |
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NaN |
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[] |
| description:
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The Maryland State Highway Administration (SHA) is mandated to file a National Pollutant Discharge Elimination System (NPDES) permit with the Maryland Department of the Environment (MDE). The permit requires the inventory, inspection, and maintenance of SHA stormwater infrastructure. SHA is responsible for maintaining storm drain infrastructure on more than 5,000 miles of roadway statewide. The data are organized into a series of drainage systems with stormwater management facilities that are interconnected, allowing for flow-tracing function through distinct systems. A drainage system is defined as a series of storm drain structures or point features (i.e., manholes, inlets, endwalls) that connect hydraulically through conveyance features such as pipes and / or ditches. Closed and open storm drain structures are connected by pipe and ditch conveyance to create the drainage system. Stormwater management facilities (SWMF), also known as stormwater best management practices (BMP) are inventoried with the storm drain system. A system can include both open and closed storm drain features. |
| licenseInfo:
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This data was obtained from the Maryland State Data Repository (MDiMap) and should not be shared to the public. The public should download the complete GIS feature class from the MDiMap website: https://imap.maryland.gov. |
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| title:
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PGCOITGIS02.DBO.SHA_CONVEYANCE |
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| tags:
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["SHA","NPDES","Conveyance"] |
| culture:
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en-US |
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NaN |
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