Level 16 is a level and area of Stargate Command. It houses the Stargate Command monitoring station. In 2000, when Major General George S. Hammond was replaced by Major General Henry Bauer, the test of a Naquadah enhanced warhead on an uninhabited planet caused massive amounts of radiation to feed back through the active wormhole. Members of SG-1 and Gen. Bauer moved to the monitoring station on level 16 to observe the Gate Room from a safe distance. The Stargate Command brig is also located on this level. (SG1: "In the Line of Duty", "Chain Reaction")
When Ba'al and his clones took control of part of the SGC, they controlled this level. (SG1: "Insiders")