Per the City of Rockville:
An area of Rockville Town Square will be blocked off to allow maintenance work to be performed on the public park’s sand filter — a facility beneath the public space that treats and cleans stormwater runoff.
Filter cleaning work will be conducted from 7 a.m.-5 p.m. Oct. 4-15.
Construction equipment will access the fenced-off site from Gibbs Street and Maryland Avenue. The outside dining streetery on that side of Gibbs will be temporarily closed during maintenance.
Pedestrians will still be able to traverse the square between Gibbs and Maryland.
The underground stormwater management facility under the square receives runoff, through a piping system, from almost 10 acres of impervious surfaces surrounding the site, including from pavement, parking lots and buildings that make up Town Square and a little beyond. The cleaning will remove accumulated sediment and debris.
Following treatment, the clean water discharges through pipes into Maryvale Park and Rock Creek.