Keywords: US Navy 070808-N-3093M-020 Chief Navy Diver Scott Maynard of Mobile Diving and Salvage Unit (MDSU) 2 makes final checks on Navy Diver 2nd Class Noah Gotteman's MK-21 diving helmet.jpg en MINNEAPOLIS Minn Aug 8 2007 - Chief Navy Diver Scott Maynard of Mobile Diving and Salvage Unit MDSU 2 makes final checks on Navy Diver 2nd Class Noah Gotteman's MK-21 diving helmet before a dive into the Mississippi River MDSU-2 is assisting other federal state and local authorities managing disaster and recovery efforts at the site U S Navy photo by Senior Chief Mass Communication Specialist Andrew McKaskle RELEASED 2007-08-08 070808-N-3093M-020 Navy http //www navy mil/view_image asp id 49274 U S Navy photo by Senior Chief Mass Communication Specialist Andrew McKaskle PD-USGov-Military-Navy I-35W Mississippi River Bridge collapse recovery MK-21 diving helmet United States Navy Divers |