HUNTSVILLE, Ala. – In observance of the National Day of Mourning on Thursday, January 9, Redstone Arsenal will operate on modified holiday hours. Gate 8, located at the intersection of Drake Avenue and Patton Road, will be open from 5:30 a.m. to 9 p.m. On the other hand, Gate 9, situated on Rideout Road, will remain open 24/7. All other gates will be closed.