Peterson construction update Sept. 2 Published Sept. 2, 2009 21st Civil Engineer Squadron PETERSON AIR FORCE BASE, Colo. -- The following construction projects are currently ongoing at Peterson. Base personnel are asked to exercise caution when in the vicinity of these projects. 1. The sidewalk extension project near the aquatic center has an estimated completion date of Sept. 4. 2. The repair and replacement of the gates at Peterson's east gate has an estimated completion date of Oct. 14.