Allegheny River Lock and Dam No. 4
Allegheny River Lock and Dam No. 4 | |
NRHP reference No. | 00000398[1] |
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Added to NRHP | April 21, 2000 |
The Allegheny River Lock and Dam No. 4 in
It is located about 24.2 Miles up the Allegheny River from the Point in Downtown Pittsburgh. Also, it is about 6 Miles down the Allegheny from the mouth of the Kiskiminetas River.[3]
Upriver, Allegheny Pool No. 4 has an average water elevation of 745.4 feet above sea level and extends about 6.2 miles upriver to Allegheny River Lock and Dam No. 5. Downriver, Allegheny Pool No. 3 has an average water elevation of 734.5 feet above sea level and extends about 9.7 miles downriver to Allegheny River Lock and Dam No. 3. Thus Lock No. 4 lifts and lowers boats about 10.9 feet between the pools.[3]
It has a single lock and a
Traffic through the lock was about 1.8 million tons in 1998, including shipments of coal, petroleum, sand and gravel, ore, steel, chemicals, fertilizer, salt, flour, lime, and slag.[2]
It was listed on the National Register of Historic Places on April 21, 2000.[1]
References
- ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
- ^ a b c Dinsmore, Douglas (1998). "Historic Resources of the Allegheny River Navigation System 1739-1948". National Register of Historic Places. National Park Service. Retrieved November 27, 2013.
- ^ a b "Allegheny River Navigation Charts Allegheny River Navigation Charts" (PDF). army.mil. January 2004. Retrieved 10 April 2023.
- U.S. Army Corps of Engineers, Pittsburgh District. Retrieved November 27, 2013.