Apply herbicide to control vegetation at the following locations: W.D. Mayo Lock and Dam 14 North and South side, Robert S. Kerr Lock and Dam 15 and Powerhouse, Robert S. Kerr Navigation Office, Rober... Apply herbicide to control vegetation at the following locations: W.D. Mayo Lock and Dam 14 North and South side, Robert S. Kerr Lock and Dam 15 and Powerhouse, Robert S. Kerr Navigation Office, Robert S. Kerr Power Line, Robert S. Kerr Marine Terminal, Webbers FallsLock and Dam 16, Chouteau Lock and Dam 17 and Access Road, Newt Graham Lock and Dam 18 and Blue Gill Park. In addition, there are (40) total signs and (55) total gabions.