The North Tailwater area near the Red Rock Dam will be closed to the public starting Monday as construction of hydroelectric facilities at the dam begins. The closure extends until construction of the project is completed in the spring of 2018. The closure will include the North Tailwater Recreation Area of Lake Red Rock and a section of the Volksweg Trail from Howell Station Campground to the North Overlook Picnic Area in that vicinity. Once built, the Red Rock Hydroelectric Project will be the second largest hydropower facility in Iowa and will be capable of producing enough electricity to supply about 18,000 homes.