Occurred on March 6, 2011 / Woodsville, New Hampshire, USA
Info: This is the second of two videos capturing the March 6, 2011, Wild Ammonoosuc River Ice Flow in Woodsville, NH. This video takes place at the intersection of Route 112 with Route 302. This footage captures the ice flow transitioning from dynamic, mass movement of ice to a static, mass jam. This jam is due to the constriction of two bridges crossing the river channel. Eventually, the river undermines the ice jam due to the hydraulic head upstream of the ice jam.
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