NX Drydock

From Memory Alpha, the free Star Trek reference.

The NX drydock (no official name) was the location for the construction of the Columbia, an NX class starship in 2154. This drydock (its founding date unknown) was similar to the Warp Five Complex. However, it was smaller, had three arms and lacked a visible station. Due to the construction of other NX-class ships, there may have been other NX drydocks in service around Earth. (ENT: "Home")