A branch drain accepting waste products delivered to it vertically, by gravity, from one or more similar but usually smaller fixtures, and conducting them horizontally to the primary disposal drain.
When the Minuteman III retires, the silos and launch facilities at Malmstrom Air Force Base in Montana, which oversees 150 nuclear ICBMs scattered across a 13,800 square miles, will have been buried for 70 years.
The missile assembly building is located on the sound at Channel Blvd. and Flake Ave. in the Topsail Beach business district which is now used as a museum and meeting center. The launch pad is used as a patio for the Jolly Roger Motel. Several missile tracking towers still stand along the island.