Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Butterfly Gates
Photographer: Allen C. Browne
Taken: May 3, 2017
Caption: Butterfly Gates
Additional Description: Two levers were used to open butterfly gates at the bottom of the lock to equalize water levels.
Close-up of image on marker

Submitted: May 4, 2017, by Allen C. Browne of Silver Spring, Maryland.
Database Locator Identification Number: p381670
File Size: 3.066 Megabytes

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