USACE Walla Walla District engineer Andy Rajala (left) and Kent Bernard, a USACE contracting specialist (right), monitor contractors' emergency repair work, May 20, on an eroded area of the Heise-Roberts Levee System on the Snake River near Lorenzo, Idaho. As of Sunday afternoon (May 20), contractors have repaired about two-thirds of the 300-feet-long by 15-feet-wide section of levee eroded away by seasonal high flows in the Snake River. In some locations the levee has been eroded more than 20 feet in height from the top of the levee -- about 8 feet of the levee is visible above the water’s surface.