![Aerial image of Lock and Dam 9, Allegheny River](https://webarchive.library.unt.edu/eot2008/20090109020018im_/http://www.lrp.usace.army.mil/nav/images/ld9a_aerial.jpg)
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Lock and Dam 9
509 Rimerton Road
Templeton, PA 16259-0157
724-868-2486
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NOTE: The
East Brady Bridge over the Allegheny River will be under
construction through August 2007. Boat
traffic may be restricted at times. Additional information can
be found at
www.eastbradybridge.com.
Location
Lock and Dam 9 is located at river mile 62.2 near Rimer, Pa.,
in Armstrong County.
History
Lock and Dam 9 was built from 1935-1938 and opened in 1938.
Project
Information
Lock and Dam 9, like all navigation facilities on the Allegheny
River, consists of a single lock chamber and a fixed crest dam.
This type of dam is basically a concrete weir, or wall, across the
river which keeps the river channel upriver of the project deep
enough for navigation -- about 9 feet or more. Water which flows
over this type of dam cannot be controlled locally. Consequently,
it cannot provide any control over flood waters. An incidental benefit
derived from the pool formed by the dam is the availability of a
source of municipal and industrial water.
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