July 8, 2019, about 10 a.m., the north side of the Reservoir Road berm at Glover Archbold National Park, where the giant, deteriorating pipe that carries stormwater and sewage down the middle of the Park passes under a stone abutment and the road on its way to intercept a pipe along the Potomac River. Parts of the ground at the top of the abutment are starting to sink. The National Weather Service recorded more than three inches of rainfall over the prior three hours. DC Water spokesman John Lisle stated in an email Tuesday that the agency is working with the National Park Service “to determine the necessary steps and appropriate repair for a collapsed bulkhead.” Lisle described the bulkhead as a brick wall that surrounded a 72-inch stormwater pipe. He said it collapsed after a prior storm and the damage was discovered in March. He said he did not know of “any potential damage to Reservoir Road.” Safety fencing at the site will be repaired. Photos Credit: John A. Bray (See analysis of conditions in the Park, Runoff: Glover Archbold National Park)

July 8, 2019, about 10 a.m., overlooking the north side of Reservoir Road at Glover Archbold National Park.

July 8, 2019, about 10 a.m., the mud flat on the north side of Reservoir Road at Glover Archbold National Park.

July 7, 2019, about 7 a.m., the north side of Reservoir Road at Glover Archbold National Park, with the National Weather Service recording about three-quarters of an inch of rainfall over the prior 12 hours.

July 7, 2019, about 7 a.m., the north side of Reservoir Road at Glover Archbold National Park.

July 7, 2019, about 7 a.m., the north side of Reservoir Road at Glover Archbold National Park.

July 8, 2019, about 10 a.m., at the center trail of Glover Archbold National Park near P Street, where stormwater in the Park forms a confluence with a torrent from a pipe that drains part of the campus of Georgetown University. The trail section has been closed since August 2016, with the National Park Service citing concern about debris falling from the abandoned trolley trestle just south of the sign.

July 8, 2019, about 10 a.m., stormwater pours off the campus of Georgetown University.

July 8, 2019, about 10 a.m., a Georgetown University stormwater facility overflows, sending a torrent into Glover Archbold National Park.

July 8, 2019, about 10 a.m., stormwater flows over the floor of Glover Archbold National Park at the site of a landslide nearly a decade ago on the Georgetown University campus slope facing the Park.

July 7, 2019, about 7 a.m., sediment retention skirting on the border of Glover Archbold National Park and Georgetown University is overrun by erosion off the steep slope of the campus, where a  landslide occurred nearly a decade ago.