The construction of the Battlespace Environment Laboratory began August 26, 2009, and was completed by September 2010. The 145,000 square foot, two-story laboratory is on Carlisle and Gibson. The picture shows when the last piece of steel was placed on the facility, called “topping-off.” Workers used an 80-ton crane to lift the last 30-foot steel beam and place it on the roof. The largest beam lifted by the crane was 62 feet long and weighed 5 tons. The new facility will house the people relocating from Hanscom AFB, Mass. U.S. Air Force Photo by Elizabeth Martinez
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