Traffic construction bypass on Altus Air Force Base Published Nov. 13, 2009 By Altus Air Force Base Public Affairs 97th Air Mobility Wing Public Affairs ALTUS AIR FORCE BASE, Okla. -- Due to construction, the portion of L Avenue extending from the main gate traffic circle to 6th St will temporarily close from 23 November to 4 December 09. The attached map shows the exact location of the road closure. If you have any questions or concerns please contact me or Mr. Pat Campbell at 481-7169. Thank you!