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The City of Alexandria, Virginia is a highly urbanized City with approximately 160,000 people living in 15.3 square miles, and approximately 48% of the land area is considered impervious. The City currently maintains over 300 miles of roadways and 430 miles of sidewalks, most of which have no water quality treatment or quantity controls. The […]
As water managers and engineers, it’s important to understand our watersheds, urban landscapes, and their response to extreme events like heavy precipitation and rising surface water levels. Of the numerous tools at our disposal, there are many benefits to a flood warning system, including knowing in time where flooding issues could occur, enabling reactive action, […]
Over the last five years, the City of Virginia Beach has completed the development of the hydrologic and hydraulic models for all 15 drainage basins throughout the City’s nearly 500 square miles. Each of the 15 drainage basins model has been calibrated and validated against data observed during historical storm events that caused flooding in […]
In recent years, the management of urban drainage systems has become increasingly complex, especially in areas with mature infrastructure and stringent spatial constraints. Traditional methods of surveying and mapping, while effective, often come with significant drawbacks such as prolonged traffic disruptions, safety risks, and limitations in data accuracy and detail. This presentation proposes a transformative […]
This presentation will discuss recent experiences in navigating field changes, design changes, and permit modifications efficiently and effectively. Lessons learned will be shared for projects that required revisions to their approved Stormwater Management Plan due to conflicts with varying field conditions or due to the reallocation of project funding. These case studies will address the […]
Aquatic Informatics’ presentation will focus on the modernization of stormwater data management and the importance of data in managing flood events. We will highlight the experiences of two different regions, the City of Orlando in the Southeast coastal region of the US and the Toronto and Region Conservation Authority (TRCA) in Ontario, Canada. The presentation […]
On January 5, 2022, a structural failure occurred at the bottom of the CMP riser structure for Lake Monroe in King George, VA. The lake level began to drop and embankment material started to erode away into the riser. This presentation will cover what ensued in the subsequent hours, days, weeks, and months, including emergency […]
The High Definition Stream Survey (HDSS) approach to waterway assessments was created to rapidly gather continuous geo-referenced data in a single pass for any size of stream or river. HDSS integrates GPS, video, depth, side scan imagery, velocity, and water quality information to enable a much more thorough understanding of the current and potential factors […]
Twin Lakes State Park is a 548-acre recreational park located in Prince Edward County, Virginia that houses Goodwin Lake Dam and Prince Edward Dam. Both dams consist of earthen embankments with concrete overflow spillway and a riprap channel at the toe of the spillway chute. These dams are classified as low hazard. Stantec visited Goodwin […]
Whenever someone asks us what the stormwater management requirements will be on their upcoming project, our immediate response is “Where’s the project and what’s the total land disturbance?”. So, you might be thinking, “What exactly is so disturbing?”. Well, while the amount of land that’s disturbed during a project is a critical component to control […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
