Residents of Lemmon Valley who've been threatened by floodwaters have been asking for action, now they're getting it. The State, Washoe County and the North Valleys Incident Command Team have begun a short-term, temporary plan to prevent the spread of flood waters. They plan to construct temporary barriers in areas around Swan Lake. The barriers will stretch about five miles long and will be four-feet high. Water would be pumped into the Lake, over the wall. In the middle of the barriers will be more than 12,000 yards of sand. Crews are closing Lemmon Drive between Oregon Blvd. and Waterash Street until further notice. Construction is expected to take about a week.