» Place: Haverhill, Essex, Massachusetts «Prev 1 2 3 4 5 6 7 8 9 ... 11» Next» » Slide Show
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Rocks Bridge, East Haverhill, MA - modern photo
Structure Type:
Span 1: riveted Pennsylvania through truss, built 1895. Span 2: riveted, 2 intersection Warren pony truss, built 1883. Span 3: Rim-bearing, swing, through truss built in 1883. Span 4: riveted Pratt pony truss, built in 1914. Span 5: riveted Pennsylvania through truss, built in 1914. Span 6: riveted Pratt pony truss, built in 1914.
Timber decks of spans 2 and 3 apparently replaced several times, the last time between 1959 and 1965, with new timber planks and stringers.
Original timber stringers and deck of span 1 replaced in 1914 with steel stringers and a reinforced concrete deck. A new bituminous concrete wearing surface was placed in 1952.
Plans show a brick wearing surface on spans 4, 5, and 6, however this was replaced by 1941, when a bituminous concrete wearing surface was placed. Piers and abutments have been generally rebuilt. The oldest is probably the center pier under the swing span as well as the pier between spans 2 and 3, both probably dating from 1883. The swing span fender has been heavily rebuilt several times.
» Place: Haverhill, Essex, Massachusetts «Prev 1 2 3 4 5 6 7 8 9 ... 11» Next» » Slide Show
