WATCH: Timelapse Footage Shows Historic Ohio Hand-Rotated Bridge Rotating Due to High Water

Timelapse footage captured the moment the Harmar bridge rotated in Marietta, Ohio, on Sunday, April 21, to let a boat pass in high water .

The footage, shared by the Historic Harmar Bridge Company, shows the bridge turning at a 90-degree angle to allow the Valley Gem Sternwheeler to pass under in high waters from recent rain.

“It took 12 men and women 18 rotations today to get the bridge all the way open and then closed again,” the company wrote in a Facebook post.

The non-profit then explained people regularly gather to rotate the bridge and let people pass as the turnspan cannot remain open “without the support from the rest of the structure,” and it “previously began to deteriorate into the waters and dock below.”

According to the Historic Harmar Bridge Company , the bridge, which spans the Muskingum River, is the last remaining operational hand-turned swing bridge in the United States.

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