Squire Whipple
Squire Whipple | |
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Born | |
Died | March 15, 1888 Albany, New York, US | (aged 83)
Occupation | Civil engineer |
Spouse | W. Anna Case |
Parent(s) | James Whipple and Electa Johnson |
Signature | |
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Squire Whipple (September 16, 1804 – March 15, 1888) was an American civil engineer.
Biography
Squire Whipple was born in Hardwick, Massachusetts on September 16, 1804.[1] His family moved to New York when he was thirteen. He received his secondary education at the Fairfield Academy in Herkimer, New York, and graduated from Union College in New York after only one year. He has become known as the father of iron bridge building in America.[2]
He died March 15, 1888, at his home in Albany, New York, US and was buried in Albany Rural Cemetery, Menands, New York.[1]
Bridges
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/45/Normans-kill-br-01.jpg/220px-Normans-kill-br-01.jpg)
The Whipple Cast and Wrought Iron Bowstring Truss Bridge over Norman's Kill in Albany, New York, is a very well preserved example of a Whipple Bowstring Arch Truss. Constructed by S. DeGraff of Syracuse, New York, 1867–69, it is still in daily use, with no posted weight limits. Due to the sleek appearance, many users think it is a modern bridge. (The Delaware Turnpike once ran through both neighborhoods until 1929 with the construction of a new much higher, longer, and wider Delaware Avenue Bridge over the Normans Kill. This allowed commuters to and from Albany to bypass both Normansvilles. The original Whipple Bowstring bridge still stands, though it has been closed to vehicular traffic since January 1990.) Another example stands on the campus of Union College in Schenectady, New York, where it serves as a pedestrian walkway.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Cairo_Bridge%2C_Ohio_River_1890.jpg/220px-Cairo_Bridge%2C_Ohio_River_1890.jpg)
Whipple's patented designs were implemented in numerous bridges, both Whipple truss and prefabricated bowstring arch truss bridges, which became the standard design for Erie Canal crossings; using an economical mix of wrought iron for tension members and cast iron in compression. Another such arch is the Shaw Bridge, the only known Whipple bowstring at its original location and the only known "double" believed extant. Comprised of two identical spans sharing a common pier, it has been described as "a structure of outstanding importance to the history of American engineering and transportation technology."[4] There are at least four other Whipple bowstrings standing in Central New York state, and one in Newark, Ohio.
Patents
- U.S. patent 2,064 – Bowstring iron-bridge truss (1841)
- U.S. patent 134,338 – Lift draw bridge
Books
- A Work on Bridge-Building: Consisting of Two Essays, the One Elementary and General, the Other Giving Original Plans, and Practical Details, for Iron and Wooden Bridges (1847)
- An elementary and practical treatise on bridge building (1899)
References
- ^ a b Engineering News and American Railway Journal. Vol. 19. New York: Engineering News Publishing Co. January–June 1888. p. 231. Retrieved December 22, 2021 – via Google Books.
- ^ Survey number HAER NY-4 - Whipple Cast & Wrought Iron Bowstring Truss Bridge, Normans Kill Vicinity, Albany, Albany County, NY (Biography on page 3)
- ^ Historic American Engineering Record (Library of Congress). Survey number HAER NE-2. pages 221–261.
- ^ Raymond W. Smith (January 1979). "National Register of Historic Places Registration: Double-Span Whipple Bowstring Truss Bridge / Shaw Bridge". New York State Office of Parks, Recreation and Historic Preservation. Retrieved August 9, 2008. (includes map and diagrams)
External links
- Genealogy Squire Whipple, Whipple.org[permanent dead link]
- Squire Whipple essay, Whipple.org
- ASCE – History and Heritage of Civil Engineering
- Squire Whipple at Structurae
- Survey number HAER NY-4 – Whipple Cast & Wrought Iron Bowstring Truss Bridge, Normans Kill Vicinity, Albany, Albany County, NY (Biography on page 3)
- Photo of an all-wood Whipple bowstring arch truss bridge built in 1882 in Santa Cruz, California (Santa Cruz Public Library collection)