NAS Patuxent River
- Observe standing water concerns
- Identify all inlets and outlet
- Review topography and stormwater flow
- Identify potential drainage solutions
The Government implemented a shoreline stabilization project to restore roughly 4,200 linear feet of stone revetment along the Chesapeake Bay at NAS Patuxent River which included extension, and realignment and elimination of drop inlets and outfall pipes. Following completing of the project, the Government identified areas of concern beyond the existing construction scope including standing water and ponding. Bluestone was tasked with performing a study to evaluate drainage condition at the project site. Bluestone began with data collection via personnel interview and document review. Bluestone then performed a site visit of the area to observe standing water concerns, identify all inlets and outlets, review topography and stormwater flow, and identify potential drainage solutions.
Upon completion of the data gathering process, Bluestone developed a site map identifying all points where water enters and leaves the shoreline area, including appropriately sized arrows conveying runoff relative to run-on. The drainage study report included discussion of field observations, records review, and proposed multiple mitigation strategies. Each mitigation strategy identified the merits and weaknesses of the proposed strategy, potential costs of each alternative, and considerations for additional mitigation. Each recommendation considered the overall objective of the Government in achieving the best value possible with minimal long-term maintenance obligations. Bluestone identified eight alternative mitigation strategies in total and identified the two that would provide the best value to the Government by when considering effectiveness, long-term maintenance requirements, and overall cost.
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