The Meeker Island Lock and Dam (originally known as Lock and Dam No. 2) was the first lock and dam facility built on the Upper Mississippi River. After a construction period lasting eight years the site was only in operation for five years from 1907 to 1912 when the growing interest in hydroelectric power led to design and construction of today's Lock and Dam No. 1 a few miles downriver. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Building