Author(s): G. Frankenstein; A. Assur
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Keywords: No Keywords
Abstract: In December of 1967, Northern New England experienced an extended period of mild weather. Ice in the Israel River broke up and formed a jam near Lancaster, NH without serious flooding. Subsequent severe weather led to the production of frazil ice and the solidification of the ice jam. Ice observations and recommendations were made to prevent flood damage. Rapid thawing with rain in March produced a new ice jam with catastrophic flooding and damage in the neighborhood of 0.5 million dollars. Several reasons are advanced for the susceptibility of sites to ice jamming. Two criteria are derived which show critical numbers for ice clogging when the surface cannot accommodate the ice discharge and ice jamming when the channel cannot transport the ice. Model tests for verification are planned.
Year: 1972