Right when the meaty part of Fall marathon training starts, D.C.’s primary long run route continues to be a challenge. “The Big Loop,” the popular 20-mile route carrying runner around the Capital Crescent and Georgetown Branch trails to Rock Creek Park’s Beach Drive is still compromised, though in new ways.
The Georgetown Branch Trail remains closed during construction of the Purple Line. The Beach Drive rebuilding project has moved north, closing most of the 2.7 miles between the Maryland state line and Joyce Road. And now the Zoo loop, the roughly half-mile trail circumnavigating the Beach Drive tunnel, is apparently in danger of falling into the creek following heavy rains and erosion, so pedestrians and cyclists are forced to share a five-foot-wide sidewalk, feet from automobile traffic.