The King County Wastewater Treatment Division is warning Discovery Park trail-goers to expect intermittent closures, detours and other impacts from a water reservoir project slated to start as early as Monday, Aug. 19.

The project will update the West Point Treatment Plant’s underground water reservoir that store drinkable water for the plant, Discovery Park and the West Point Lighthouse, as well service water for industrial uses at West Point.

A 460-foot overflow pipe will also be installed  for excess drinkable water, as well as a new entryway to the underground tanks.

About 26 trees were recommended for removal to complete the project, which will be replaced using plantings recommended by Seattle Parks and Recreation.

“Temporary impacts to Loop Trail and Capehart Trail may include detours, intermittent closures and vehicles on trails escorted by flaggers,” according to a King County WTD news release. “Materials and equipment will be staged near trails.”

Construction is expected to last 3-5 months, and will occur 7 a.m. to 5 p.m. Monday-Friday.

For concerns during construction, a 24-hour project hotline has been set up at 206-296-7432.