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High water quality is essential for aquatic life and human beings. The microbial communities are the major component of the river ecosystem. However, the microbial communities of the river water ecosystems are susceptible to changing climatic and other environmental factors, for instance, water pH, temperature, nutrient contents, and concentrations of metals and minerals. So, there […]
Municipalities along the east coast of the United States of America are the frontrunners in need of stormwater infrastructure retrofits, mainly due to the age of their crumbling infrastructure and increase in population. A common example of this issue are cities near the coast lines – more specifically a city in North Carolina near Pasquotank […]
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 […]
A stormwater “Resilience Plan” identifies specific drainage improvement projects that could be constructed to improve flood resiliency – specifically for extreme storm events. Resiliency planning addresses how fast and efficiently a system recovers after a major event. Here, resiliency specifically refers to the ability of streets and land parcels to recover from flooding. Improving resiliency […]
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. […]
Climate change is affecting the way stormwater management has traditionally been perceived. Total rainfall and storm intensity are increasing to levels unseen in the past. Sea-level rise and resilience have become a popular topic within the stormwater community. Project and site constraints limit the feasibility and effectiveness of traditional stormwater management approaches. In urban and […]
Anthropogenic activity is responsible for changing environmental conditions in many environments, including nutrient over-enrichment in lakes and coastal waters, and elevated temperatures and carbon dioxide concentrations in the atmosphere and water. Due to these changes, many lakes have become increasingly stratified and eutrophic. These factors create a perfect environment for the proliferation of cyanobacterial harmful […]
To investigate the effects of stormwater improvements (including new pump stations, stormwater bypasses and tide gates) on a small area near Annapolis harbor, an integrated 1D-2D model was developed. The effects of overland flow were pronounced in this area as tidal flooding was a consistent issue. The existing outfalls lacked functioning tide gates, resulting in […]
Climate change is already producing impacts that are affecting the U.S. military such as increased precipitation and storm severity, rising sea levels, and rising temperatures. These trends place increased risk and pressure on existing infrastructure systems and services to withstand impacts and reliably deliver critical services necessary to support both the military missions and surrounding […]
Rainwater harvesting on Virginia projects is often overlooked and grossly underutilized. There are tremendous benefits in meeting current stormwater regulations for both phosphorus removal and run-off reduction. Virginia’s 2023 was one of the driest on record and once again we hear mention of terms such as scarcity and mandatory conservation. We will review the basics […]
The Virginia Lakes and Watershed Association is a volunteer organization and its mission is to provide education on water resources in Virginia.
