Aurora Hills Stream Restoration Project (Millersville, MD)
The project site is located in the community of Aurora Hills in Gambrills in Anne Arundel County, Maryland. This was an Anne Arundel County, Maryland, Capitol Improvement Project. During the winter of 2008, Underwood & Associates constructed a stream and wetland project on five tributaries to Wells Branch, itself a tributary to the Severn Run. These streams occur on exposures of the Magothy sands formation in Anne Arundel County, MD. The project presented opportunities to raise local groundwater tables by filling incised stream inverts 10-20 feet and re-hydrating the adjacent soils. The project involved “daylighting” over 300 linear feet of stream, removing it from pipes, exposing it to the native soils, and allowing it to seep through the landscape. All in all, nearly 3,000 linear feet of stream was restored. The project also involved placing a cobble, riffle weir grade control in Wells Branch raising the stream invert and re-connecting the stream to the adjacent floodplain. The entire project site was planted with a suite of the native acidophile plant community, including Atlantic White Cedar (Chamaecyparis thyoides) and its associates.