Great Granby Salmon Arch

The Great Salmon Arch was the culvert and aqueduct over Salmon
Brook in Granby, CT as a part of the Farmington Canal.  The span
of the arch was to be 40 feet.  This arch is of particular interest as
the present (third) span was the third to be constructed, the first two
arches being lost in past seasonal floods.  Reference: Forty-Ninth
Annual Report - (http://www.csce.org/images1933-Northampton Canal2of 3_Part1.pdf)