S&R is underway with the reconstruction of the new Parker River Bridge on Route 1A, in Newbury, MA. The new bridge design requires the placement of 24 each 120′ long concrete beams weighing in at a calculated weight of over 60 tons. To accomplish the placement of the new beams S&R will use, a pair of Manitowoc 4100 Series-I lattice boom crawler mounted cranes set-up in “Ringer Configuration”. Each “Ringer Crane” has a maximum capacity of over 300 tons each and will together place the 60-ton beams at the center span at a radius of over 120′.


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