Powow River Bridge, Spanning Powow River on Main Street, Amesbury, Essex County, MA
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Spanning Powow River on Main Street, Amesbury, MA
Find maps of Amesbury, MA
Documentation compiled after 1968.
Survey number HAER MA-92
Unprocessed field note material exists for this structure (FN-13).
Building/structure dates: 1891 initial construction
Significance: The Powow River Bridge is located on a site which has been utilized as a major river crossing since the mid-eighteenth century; at least five earlier bridges have spanned the river at this location. The bridge is a rim-bearing swing span built by the Boston Bridge Works, one of the most prolific bridge-building firms in New England during the late-nineteenth and early-twentieth century. Well over 120 Boston Bridge Works bridges are known to exist in Massachusetts alone. Although the swing mechanism is no longer in operation, the Powow River Bridge is one of the earliest examples of moveable bridge technology in Massachusetts.
Boston Bridge Works
Historic American Engineering Record (Library of Congress)
1. General view of west portal elevation, looking east
2. Closer view of west portal elevation, looking east
3. General view, looking east, showing upper lateral bracing system
4. Detail, showing builder's plate on northeast endpost
5. General view of bridge, looking north from east river bank
6. Closer view of bridge, looking north from east river bank
7. Detail, showing abutment and lower chord connection at southeast corner
8. Swing mechanism at central pier, looking northwest
9. Detail, showing north sidewalk railing with cast iron ornamental rosettes
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