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Russian ex-world champs, US figure skaters aboard plane that crashed near Washington
The Potomac River has an average depth of 24 feet, averaging approximately 400 miles long from its headwaters at North Branch to its mouth in the Chesapeake Bay, the United States Geological ...
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National Park Service moves forward with Piney Branch Tunnel Project
Project officials say the tunnel is needed to reduce the number of combined sewer outfalls (CSOs) that degrade the water quality of Piney Branch, Rock Creek, the Potomac River and ultimately the ...