Braddock Locks & Dam


Braddock Locks & Dam is one of nine navigational structures on the Monongahela River between Pittsburgh, Pennsylvania and Fairmont, West Virginia. Built and maintained by the U.S. Army Corps of Engineers, the gated dam and the lock form an upstream pool that is for, stretching to Elizabeth, Pennsylvania.

Description

Braddock Locks and Dam consists of the locks located on the right bank and the newly gated dam, that replaced the nearly 100-year-old fixed-crest dam.

Locks

Built in 1953, the locks consist of two side-by-side chambers. The land chamber is wide by long and the river chamber is wide by long.

Dam

Construction of new Braddock Dam, started in 1999, was completed in May 2004 using innovative in-the-wet construction techniques. Two prefabricated hollow concrete segments were constructed at an off-site dry-dock and floated into place and set down on a prefabricated foundation system of sheet-pile cut-off walls and large diameter drilled shafts socketed into bedrock. The float-in segments were built with precast wall panels and cast-in-place bottom and top slabs. Weight of the first by segment was. Dam segment two, at, measures by.
The spillway was equipped with three by Standard Tainter gates and one by Water Quality Tainter gate. Each gate is operated by two hydraulic cylinders. All gates were fabricated and assembled in one piece by G&G in Alabama and were barge shipped to the project site. Weight of the Standard Gate and the Water Quality Gate is 438 kips and 286 kips, respectively.
The construction cost of the new dam was approximately $107.4 million.