Rock Creek Park NPS replies to a query about when the Piney Branch Parkway will reopen:
“The new Piney Branch Multi-use Trail is almost finished, and the Piney Branch Parkway should re-open on or about Oct. 22.
In November, there will be a two-week period of additional construction on stone retaining walls. During these two weeks, one lane of the parkway will remain open, with flaggers directing traffic.”