Town of Christiansburg issued the following announcement on Feb 9.
Starting on Thursday, Feb. 10, through Friday, Feb. 11, between the hours of 8 a.m. and 4:30 p.m., Public Works crews will be performing a stormwater pipe replacement on Phlegar Street. This work will require Phlegar Street to be closed between Second Street and Third Street. Below is a map showing the section of Phlegar Street that will be closed to traffic. Signage will be in place to assist motorists around the road closure.
Original source can be found here.