170828-N-UD469-008 BANGOR, Wash. (Aug. 28, 2017) The Ohio-class ballistic missile submarine USS Henry M. Jackson (SSBN 730) sits in dry-dock as the Intermediate Maintenance Facility conducts extensive maintenance, upgrades and refurbishments to extend the life of the boat. (U.S. Navy photo by Mass Communication Specialist 1st Class Amanda R. Gray/Released)