Lizard Hill

Bishopville, MD   The Lizard Hill Wetland Creation Project is a 20-acre effort near Bishopville, Worcester County, MD. The site, an abandoned sand mine which required remediation, presented a special opportunity to target Atlantic white cedar restoration. This evergreen species and its associated community were once very common along eastern flood plains of coastal rivers […]
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Rupperts Ravine Stream Restoration

Anne Arundel County, Maryland Bio Habitats Collaboration Project Using fluvial geomorphologic principles in conjunction with soil bioengineering, this design project, completed in 2013,  developed and designed a stream restoration plan for Rupperts Tributary, a Coastal Plain stream located in Anne Arundel County, MD. Some specific works tasks include the hydrologic and hydraulic analyses, channel geometry, […]
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Saefern II

Annapolis, Maryland This design/build project, completed in 2013,  is a continuation of Saefern I and was requested by the Chesapeake Rivers Association, Inc. (The Severn Riverkeeper Program).  Pre-project monitoring efforts within this watershed have been conducted by the Severn Riverkeeper Program and have found seasonal anoxic conditions which result  from low dissolved oxygen levels caused by nutrient and sediment runoff. A […]
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Homestead Gardens

Davidsonville, MD The project was funded by the Chesapeake Bay Trust, the Maryland Department of Natural Resources, and Homestead Gardens and designed and constructed by Underwood & Associates. In addition to restoring headwater wetland functions and habitat, the 1-acre project treats 12 acres of runoff coming from parking lots, building roofs, and nursery operations flowing […]
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North Carolina Ave

pasadena, MD Coastal plain outfall repair design and construction management. Underwood and Associates was responsible for Schematic Design Preparation, Design Document Preparation, State and Federal Permitting, Construction Document Preparation, Application for and Obtaining the Grading Permit, Bidding Phase Services, and Construction Phase Services.
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Bingham Run

Bingham Run (Washington DC) Bingham Run is  located in Washington, D.C. in the midst of a highly impervious urban landscape that has suffered greatly from mismanaged stormwater runoff in the past. This project is located at Rock Creek Park on National Park Service land. The incised channel at Bingham Run extended approximately 440 linear feet. As part […]
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Milkhouse Ford

Washington, DC Milkhouse Run is located in Washington, D.C. in the midst of a highly impervious urban landscape that has suffered greatly from mismanaged stormwater runoff in the past. This project is located at Rock Creek Park on National Park Service land. The incised channel at Milkhouse extended approximately 1,000 linear feet. As part of the TMDL load […]
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Forest Drive

Annapolis, MD   Forest Drive is a design/construction oversight project. This regenerative stormwater conveyance (RSC) detains and treats stormwater that is draining from the Forest Drive corridor, under Merryman Road and ultimately into an un-named tributary of Spa Creek. The RSC consists of a system of sand berms, riffle weir grade controls, and pools, all constructed […]
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Dunkeld Manor

Severna Park, MD   This design project focused on improving a dysfunctional existing infiltration basin between Isaiah Drive and Dunkeld Court in Severna Park which caused residential flooding issues. Underwood designed  an RSC which will increase the quality of the water and decrease the peak flow and the velocity of water leaving the site. The proposed […]
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Leelyn Drive

Severna Park, MD The existing stormwater management pond and swale system at Leelyn Drive was retrofitted with a coastal plain outfall under this project. The design goal for this project was to improve the system’s water quality by providing water quality treatment in accordance with DPW’s “Design Guidelines for Step Pool Storm Conveyance Systems.”
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