160817-N-HN991-294 NAVAL BASE VENTURA COUNTY, Calif. (Aug. 17, 2016) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 3 work on a timber during a heavy timber bridge construction course. The course, held by Naval Construction Group (NCG) 1, is part of NMCB 3’s homeport training cycle. (U.S. Navy photo by Mass Communication Specialist 2nd Class David Hooper/Released)