foster falls Tag

What I’ve Learned About Bioretention: Part 2

Read Part 1 of this post here. 2. Bigger is not better Like most everything we design, when big things fail, they fail in a big way. Bioretention works best in applications where the drainage area to an individual cell is less than about a quarter acre. Larger bioretention areas are more likely to fail due to erosion because of larger flows, creation of low spots due to variations in the surface, and clogging of the surface layer. This can be avoided by dividing the area into multiple cells with smaller drainage areas. [caption id="attachment_6401" align="aligncenter" width="770"] Larger basin divided into three cells[/caption]   The largest bioretention area I know of is an example of this. Designed by others, it collects runoff from several acres at a highway rest stop. The measures designed to evenly distribute incoming flow have been overwhelmed by large flow rates, the engineered soils mix layer does not drain quickly enough, and...

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Foster Falls

With its rural setting, river access, and historic associations, Foster Falls State Park is a hidden jewel in the New River Trail State Park system. It offers camping, river tubing, fishing, horseback riding, educational opportunities, and miles of hiking and biking trails. New River Trail State Park stretches 57 miles along the New River from Galax, Virginia to the Town of Pulaski. The park, which opened for public use in 1987, was constructed on an abandoned railroad right-of-way donated by the Norfolk Southern Corporation to the Commonwealth of Virginia. In the intervening years, the Commonwealth has acquired additional parcels for inclusion into the Park. An old farm and part of the Village of Foster Falls was one of the later acquisitions. Now one of the park’s regional headquarters, Foster Falls is one of the major draws of the park. Located at the entrance is the Foster Falls Hotel, a two-and-a-half brick building built...

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