Sep 26, 2018

October 2018

Let’s talk about climate change. If you’re like me, the idea of climate change sits quietly at the back of your mind. It blooms larger when certain stories hit headlines-severe droughts, large wildfires, record rainfall, extreme temperatures. Just before…
In 2015, Prince George’s County, Md., pursued a community-based public-private partnership (CBP3) model developed by the U.S. EPA Region 3, and selected Corvias as its private partner to retrofit an initial 2,000 acres of storm water infrastructure with…
Bioretention systems are a common type of low impact development (LID) system installed in many municipalities in Connecticut. They are simple to install, as they basically are depressed landscaped areas with special soil media where runoff from…
Combined sewer systems (CSS) exist in as many as 860 communities across the nation, and these aging sewer systems account for an estimated 850 billion gal of untreated wastewater overflow each year. To address this issue, CSS communities across the U.S.…
Retaining walls often are the structures of choice for many types of land and water control and manipulation, as they are a means to obtain or maintain dominance over the natural environment. Retaining walls using mechanically stabilized (MSE) backfill…
In the early morning April 15, 2018, a strong line of storms dropped 2 to 3 in. of rain on the the Washington, D.C., area. Just a few hours later, flash flooding alerts plagued the news. The morning commute brought nightmare traffic, and highway high-…
In September 2015, the Ohio Department of Transportation (ODOT) found that flood flows were causing erosion of the foundation slope near the columns below a two-lane roadway bridge on Ohio State Route 579 in Toledo, Ohio. This area also was exposed to…
In response to an executive order by President Donald Trump, the U.S. EPA and the U.S. Department of the Army formally suspended the Obama-era clarification of the Waters of the U.S. (WOTUS) rule. The WOTUS rule defines which rivers, streams, lakes and…
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