Base course, a soil support layer, is poured in preparation for the laying down of cement in front of the Holbrook Library at Ellsworth Air Force Base, S.D., June 16, 2016. Thirty tons of base course was used to build new sidewalks as part of a renovations project for the base library. (U.S. Air Force photo by Senior Airman Anania Tekurio/Released)
<dl><dd>Unit: 28th Bomb Wing Public Affairs</dd>
<dd>DVIDS Tags: 28th Bomb Wing; Ellsworth AFB; 28th Civil Engineer Squadron; Holbrook Library</dd></dl>
Senior Airman Anania Tekurio
Taken on 16 June 2016
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