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The Fairfax County Department of Public Works and Environmental Services (DPWES) provides wastewater collection and treatment services to over 250,000 county residents in the Northern Virginia area. DPWES owns and operates over 3,250 miles of sewer collection system, 63 pump stations, and the Noman M. Cole, Jr. Pollution Control Plant with an available treatment capacity […]
Municipalities in Virginia are finding themselves with more and more stormwater management facilities every day. However, many of the first stormwater management facilities were designed and constructed decades ago. All of these facilities have aged, but many have not aged well. Many of these facilities have not had anybody on-site since their original construction and […]
The Chattahoochee River National Recreation Area (CRNRA) has challenges protecting the health of the river as a result of runoff from land development, wastewater overflow, and impacts from the regulated water discharges of Buford Dam. To help better manage the river, the National Park Service needed to continuously document the streambank and channel conditions on […]
Unmanned Aerial Systems (UAS), commonly referred to as drones, have become a popular tool used by engineering, environmental, and construction companies for site monitoring. UAS provide real-time data before, during, and after construction, helping projects to succeed on-time and as efficiently as possible. Wetlands Studies and Solutions has had success with the use of UAS […]
As water managers and engineers, it’s important to understand our watersheds, the urban landscapes, and their response to extreme events like heavy precipitation and rising surface water levels. These events can impact property, municipal infrastructure, and water quality. Of the numerous tools at our disposal, there are many benefits to continuous water monitoring systems, including […]
For this 10-year master plan, Daniel and the AMT team provided a GIS database approach to determine optimal stormwater maintenance facility locations and eroded stream valleys in need of restoration. These databases included (1) 400 culverts with descriptions; (2) a breakdown of watershed features over 40 different subbasins; (3) 100 individual homeowner concerns, broken down […]
As stormwater management modeling advances and two-dimensional models become more commonplace, the need for bigger and better models is ever growing. Developing and using a large 1D-2D SWM model presents different challenges than just scaling up the methods and procedures involved in small-scale modeling. Using GKY’s recent 22,000-acre PCSWMM project for the City of Charlottesville […]
The National Flood Insurance Program is phasing in a new way of measuring flood risk and calculating flood insurance premiums. Here’s a hint-we will no longer be using Flood Insurance Rate Maps to rate flood insurance policies! Join us for an overview of our new methodology, new rating variables, and what it means to NFIP […]
Recent history has demonstrated how quickly and unexpectedly conditions and priorities can change, which can quickly diminish the value of a conventional stormwater master plan. New and increasingly accessible approaches including 2D modeling, dynamic dashboards, and interactive visualizations provide increased utility and longevity of master planning efforts, better addressing stormwater challenges and communicating those solutions […]
The Integrated Flood Observing and Warning System (IFLOWS) has been a program housed within the Virginia Department of Emergency Management (VDEM) for 30+ years. The network was originally designed and funded by the National Weather Service (NWS) in the late 1970s and early 1980s in several Appalachian states including VA, WV, and KY. The primary […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
