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If the item currently exists in our website, it is displayed below. If not, the link that you are referencing is no longer valid and no longer exists on our website. We will have some collections moved in the coming months. See what's coming in updates for Signature Collections or Digital WHILBR Collections on ContentDM.
This guard lock at Dam 5 was used as a means for canal boats to move between the Potomac River and the canal. It was also used to guard the canal from high water during freshets along the Potomac River.