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The City of Virginia Beach is working hard to help the public better understand stormwater runoff and how stormwater runoff is managed. The latest techniques include brochures created specifically for individual projects, project specific web pages and 1-minute YouTube Videos that explain how stormwater protection works. Current YouTube topics include: How It Works – Stormwater […]
The City of Portsmouth’s Olde Towne Historic District experiences localized flooding throughout the drainage area due to aging infrastructure and changing environmental conditions. In the lowest portion of the drainage area, rainfall events as small as 0.1-inches of rain in 24 hours in conjunction with high tides can flood streets with 1 foot of water […]
Timmons Group is providing drainage and environmental improvement services to reduce water/flooding impacts along a major waterway in Danville, VA. The Dan River is a 214 mile long and 3,300 square mile river basin in the Roanoke River Basin. The City of Danville straddles the river that spikes by ~10’ in a 100-year storm and […]
As part of the City of Chesapeake’s Elbow Road improvement efforts, GKY and Associates, Inc. was tasked with creating an existing condition Stormwater Management Model (SWMM). The primary goal of this modeling effort was to help the City and its roadway designers better understand and accommodate drainage in the highly undeveloped, low-lying, and flat watershed. […]
A flexible approach to meet ongoing local and Bay TMDL requirements is required to stay current with changing guidance and regulations, climate, and citizen needs. The recent modifications by DEQ to the calculation of street sweeping credits for meeting TMDL pollutant reduction goals have significantly reduced the pollutant removal credit for this compliance strategy, effective […]
A resilience plan of the City of Chesapeake, Virginia, was completed in December 2023 to protect the city’s watersheds from current and future flooding expected from climate change and sea level rise. The plan was prepared by Timmons Group for the city and was supported by a grant from Virginia Department of Conservation and Recreation’s […]
The 2023 Infrastructure Report Card prepared by the American Society of Civil Engineers reported that national stormwater infrastructure earned a grade of “D”. The increasing need for stormwater retrofits and new stormwater infrastructure to combat more intense rainfall due to climate change is complicated by the fact that most of the high priority projects are […]
NOAA defines coastal resiliency as “the ability of a community to ‘bounce back’ after hazardous events such as hurricanes, coastal storms, and flooding – rather than simply reacting to impacts.” The term itself has become more prevalent in recent years with increased concerns associated with the projected long-term effects of sealevel rise and climate change. […]
The Brandywine Creek, which flows through a densely populated region of eastern Pennsylvania, flooded repeatedly in 2021, culminating in a record-setting flood resulting from the remnants of Hurricane Ida. The Brandywine Creek flood is one of many examples of unprecedented flooding that occurred in the Mid-Atlantic region in 2021, which suggests that any lessons learned […]
Chesapeake’s Greenbrier Drainage Area experienced significant street and parcel flooding during Hurricane Matthew, when more than 11 inches of rain fell on October 8th and 9th, 2016. Some streets became impassible, and key roadway intersections experienced prolonged flooding. The floodwaters were slow to recede. In response to this and other severe storm events, engineers from […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
