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.
But this preliminary document is the clearest indication of the Pentagon's thinking about the future of nuclear missiles. In short, the Pentagon plans to replace the Minuteman III ICBM with a new launch rocket, one that would launch from the same silos in Montana and South Dakota where the missiles sit now. However, a new missile does not mean a new warhead.
International Panel on Fissile Materials. Countries: United States. The United States is a nuclear weapon state member of the Non-Proliferation Treaty. In April 2015, the United States declared a stockpile of 4717 warheads as of the end of September 2014. This stockpile included about 1,900 strategic warheads deployed on about 800 missiles and bombers, 180 non-strategic warheads and approximately 2,600 warheads in reserve. Additional 2500 warheads are awaiting dismantlement.