20240123 10292300 1.0 TRUE OED MS4 TMDL Part 2 OED MS4 / TMDL Polygon data including stormwater control structures, drainage areas, retrofits, tree plantings, and pavement removals. For more information, contact MDOT SHA Geospatial Technologies: Email: GIS@mdot.maryland.gov Maryland Department of Transportation (MDOT), Maryland Department of Transportation State Highway Administration (MDOT SHA), MDOT SHA Office of Environmental Design (OED), MDOT SHA Landscape Programs Division (LPD), MDOT SHA Geospatial Technologies (GIS@mdot.maryland.gov)