Gate 12A Closed for Construction September 26 Published Sept. 21, 2020 88th Air Base Wing Public Affairs WRIGHT-PATTERSON AIR FORCE BASE, Ohio – The main gate, Gate 12A, will be temporarily closed for routine maintenance beginning at 6 a.m. to midnight on Saturday, September 26. Visitors can access the base by using Gate 15A, which will be open for 24-hour access.