What type of airspace is Olympia classified as when it is closed?

When Olympia Airport is closed, it is classified as Class E airspace. Class E airspace is a category of controlled airspace that is not designated as Class A, B, C, or D. This type of airspace extends from either the surface or a specified altitude up to the base of the overlying controlled airspace. Class E is generally used for the purposes of allowing flights under visual flight rules (VFR) and instrument flight rules (IFR).

In the case of a closed airport, although the physical facility is not in operation, the surrounding airspace could still be managed as Class E, especially in rural or less densely populated areas where controlled airspace is necessary for safety but does not have the necessity for the tighter regulations of Class D airspace, which typically surrounds operational airports.

Class D airspace is specifically designated for airports with an operating control tower. If Olympia were to have an open operation with a control tower active, then it would be classified as Class D. Class A airspace, which requires IFR clearances, is not applicable here since it exists only at higher altitudes, and Class C airspace also requires a Towered Airport with specific ATC services. Thus, in the case of Olympia being closed