A project to replace an undersized culvert along a creek at King County’s Moss Lake Natural Area will require closing the area to visitors for the latter half of September.
King County’s Moss Lake Natural Area will close to the public for more than two weeks this September as crews remove a culvert along a small stream in advance of installing a replacement bridge there next year.
The culvert removal project will block access to the majority of the trail system that winds through the natural area, which features a rare sphagnum moss bog, forested wetlands, and other habitat features.
Heavy dump truck traffic should also be expected along the Moss Lake Natural Area’s access road, and the gate to the parking lot will remain closed for the duration of the project.
Crews will reestablish public access to the site as soon as the old culvert is removed. Workers will monitor water elevations throughout the winter and into early spring to determine the proper height for a permanent bridge structure.
The 372-acre Moss Lake Natural Area is located 5 miles southeast of Duvall and about 3-½ miles northeast of Carnation.
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King County Parks - Your Big Backyard - offers more than 200 parks and 28,000 acres of open space, including such regional treasures as Marymoor Park and Cougar Mountain Regional Wildland Park, 175 miles of regional trails, 215 miles of backcountry trails and a world-class aquatic center. By cultivating strong relationships with non-profit, corporate and community partners, King County Parks enhances park amenities while reducing costs.