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In a rapidly developing regions, finding and implementing TMDL projects can be challenging. Once a project finds support and proceeds forward, the watershed and site conditions can often change in the time it takes to plan, fund, design and construct. Several projects in Loudoun County have been impacted by development (privately funded and publicly funded) […]
The U.S. Army Corps of Engineers (USACE) in cooperation with the City of Norfolk intends to build a coastal storm risk management project along the City’s Eastern Branch of Elizabeth River shoreline. This project along with other City’s flood mitigation projects such as the St. Paul’s Blue/Greenway transformation project could potentially impact the interior drainage […]
Stormwater best management practices (BMPs) designed as landscape amenities in a highly public setting require regular ongoing maintenance to remain effective and attractive. Thoughtful design features make it easier to maintain the landscaped BMPs to keep them beautiful. This highly public space also has underground manufactured treatment devices (MTDs) to provide water quality treatment. The […]
Hampton Road Sanitation District’s (HRSD’s) Providence Road Offline Storage Facility is a 5.2 MG wet weather storage facility designed to help reduce sanitary sewer overflows. The facility was implemented within Virginia Beach’s Woodstock Park and incorporated a variety of new and improved park amenities, including a 30,000 square foot skate park integrated with the storage […]
To understand how a stormwater drainage system functions, calculations and analysis must be performed. This analysis and calculations can be performed via a large number of methodologies. Over the last 7 years, using PCSWMM, the City of Virginia Beach has developed a SWMM model of its Primary Stormwater Management System (PSMS). Each portion of developing […]
The National Watershed Research Network (NWRN) is a collaborative that helps communities achieve clean water and healthy watersheds by funding applied research on topics determined by its members. Together, we aim to provide insights into the impacts of land use activities on water resources, and identify regulations, programs, and practices that can best prevent or […]
The most common cause of bridge failures over streams is from floods scouring bed material around bridge foundations. Scour is the engineering term for the erosion caused by water of the soil surrounding a bridge foundation (piers and abutments). Bridge scour evaluation requires multidisciplinary inputs. This presentation will focus on the formation of bridge scour, […]
The Municipal Separate Storm Sewer System (MS4) regulations have been a driving force behind stormwater programs for years. Permittees develop their MS4 program plan according to the Minimum Control Measures (MCMs) outlined in their permit and typically use various tracking methodologies to log their progress whether in either a series of excel tables, scanned hardcopies […]
In July 2019, a summer thunderstorm dropped up to 5.3 inches of rain in one hour over some parts of Fairfax County (up to a 1,000-year storm event), causing a reported 149 house flooding and at least $15M in damages. Studies continually show that these high intensity, short duration storms will become more frequent with […]
As part of the Virginia Stormwater Management Program MS4 Phase I Permit, the City of Virginia Beach (City) implements an Enhanced Dry Weather Screening Program. The goals of dry weather screening and sampling is to identify and locate illicit discharges, cross-connections, and/or dumping into the City’s stormwater system. Because many outfalls discharge directly to surface […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
