Howell Heflin Lock and Dam

{{short description|Lock and dam structures}}

{{one source|date=December 2018}}

{{Infobox dam

| name = Howell Heflin Lock and Dam

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| image = USACE Howell Heflin Lock and Dam.jpg

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| image_caption = Aerial view of Howell Heflin Lock and dam on the Tennessee-Tombigbee Waterway. The lock is visible in the foreground on a straightened and channelized section of the waterway. The dam (visible at top) is located on the original meandering path of the Tombigbee River.

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| coordinates = {{Coord|32|50|12.86|N|88|8|8.73|W|type:city|display=inline}}

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The Howell Heflin Lock and Dam, formerly Gainesville Lock and Dam, is one of four lock and dam structures on the Tennessee-Tombigbee Waterway that generally lie along the original course of the Tombigbee River. It is located near Gainesville, Alabama, and impounds Gainesville Lake. It is named for Howell Heflin, a former United States Senator from Alabama.{{cite web|url=http://www.tenntom.org/about/ttwkeycomponents.htm|title=About the Tenn-Tom Waterway: Waterway Description and Components|date=2009-11-26|work=Tennessee-Tombigbee Waterway Development Authority|access-date=2009-11-26|archive-url=https://web.archive.org/web/20090727231639/http://www.tenntom.org/about/ttwkeycomponents.htm|archive-date=2009-07-27|url-status=dead}}