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MAC URISA 2018 Conference
Resorts Casino & Hotel - Atlantic City, NJ
Wednesday, October 24th - Friday, October 26th
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Friday, October 26 • 12:00pm - 1:30pm
Integration of Lidar-Derived Surface-Water With Storm-Water Systems as Part of the National Hydrographic Dataset for the Washington DC Area

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The District of Columbia Department of Energy & Environment (DOEE) have funded a project through the U.S. Geological Survey, National Geospatial Program (USGS) to create an integrated urban waterway system of surface water derived from lidar digital elevation models and hydro-enforced. Surface water is connected to infalls and outfalls of the storm-water network, and connecting pipes and culverts at the local resolution of the National Hydrographic Dataset (NHD). Local jurisdiction data has been obtained for guidance and transformation to the NHD and the Watershed Boundary Dataset (WBD). Lidar and local jurisdiction data will be used to update and delineate the WBD to the 14-digit level. The production work is being performed by Quantum Spatial Incorporated, the USGS and local partners will quality assure content, and the USGS will enter the completed hydrography data into the National Hydrographic Dataset. 
The project area includes eight HUC-12s that all have some area in the District of Columbia. A number partner datasets have been contributed from DC Water, Fairfax County, Virginia, City of Alexandria, Virginia, and Arlington County, Virginia to create a large scale metropolitan area hydrography dataset. The Maryland Department of the Environment is also creating a densified stream network for the HUC-12s upstream from those that are in the District of Columbia.
This presentation will provide an overview of the submitted project data types, issues encountered in data consistency, data integration, production approaches, and a look at preliminary data from the production pilot area of the Anacostia Watershed in the District of Columbia, and follow-on projects now being planned. This presentation will also show the current lack of NHD data in large urban centers, and how this project will address that kind of data gap and support urban water studies. From the DOEE and other data partners perspectives, this integrated surface and storm-water network brings them closer to effective storm water management solutions as this will be available to monitor and manage as an integrated system. This project will provide a hydrography network to better evaluate “interior” flooding events identified by the U.S. Army Corps of Engineers in the District of Columbia not due to riverine or coastal flooding processes.

avatar for Roger Barlow

Roger Barlow

Physical Scientist, USGS
Roger has been with USGS over 40 years and is active in state coordinating bodies in New Jersey, Maryland, Delaware, DC, and throughout the Chesapeake Bay Watershed. Roger chairs the New Jersey Elevation Task Force and the Maryland Elevation Work Group. Roger is also the Federal coordinator... Read More →

Friday October 26, 2018 12:00pm - 1:30pm EDT
Atlantic 7