Liberty Gates road closures Published Oct. 26, 2015 By 28th Civil Engineer Squadron ELLSWORTH AIR FORCE BASE, S.D. -- Due to barrier construction, there will be road closures near the Liberty Gate from 9 a.m. to 6 p.m., Oct. 27 to 28. After the roundabout, Schriever St. will be closed Oct. 27. Additionally, Davis St. will be closed Oct. 28. Both roads will reopen at 6 p.m. each day. For more information, call the 28th Civil Engineer Squadron customer service line at (605) 385-2680.