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USSD (Unstructured Supplementary Service Data) is a new GSM-based interactive data services when you use the phone keypad to enter some of the network has pre-established number or symbol such as * #, etc., then send that is, you can dial key to network sends a command, the network according to your instructions you need to choose the services available to you.

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Jill Reed
Business Development & Marketing Manager
Paul C. Rizzo Associates, Inc.
Penn Center East
500 Penn Center Boulevard, Suite 100
Pittsburgh, PA 15235
(412) 825-2053

                             FOR TAUM SAUK PROJECT 
June 8, 2010 – Pittsburgh, PA – Paul C. Rizzo Associates, Inc. (RIZZO) has received the United States Society
on Dams (USSD) Award of Excellence in a Constructed Project for its work on the Taum Sauk Upper Reservoir
Restoration Project. This annual award is presented by USSD in recognition of an outstanding contribution to
society through construction. RIZZO was the Engineer of Record and Construction Manager for the rebuild of
the failed dike. The Owner, Ameren Missouri, and the Contractor, Ozark Constructors, LLC; A Fred Weber –
ASI Joint Venture, were also presented this prestigious award.

In late 2005, the breach released 1.4 billion gallons of water and was named Missouri’s worst man-made
disaster. The new Upper Reservoir, completed in late 2009, involved a complete rebuild of the dam, making
it the largest Roller Compacted Concrete dam in North America.

This is second time RIZZO has been presented with the USSD Award of Excellence. The firm received the
award in 2006 for providing engineering and construction management services for the Saluda Dam
Remediation Project in Columbia, South Carolina.

May 18, 2006 – Pittsburgh, PA – Paul C. Rizzo Associates, Inc. has been presented with the United States
Society on Dams (USSD) Award of Excellence for our work on the Saluda Dam Remediation Project. The USSD
Award recognized the contractor, Barnard Construction Co., Inc.; the owner, South Carolina Electric & Gas;
and the engineer, Paul C. Rizzo Associates, Inc.

The Saluda Dam Remediation Project has been the largest ongoing dam project in the U.S. for the last three
years. The project involved building a 1.5-mile long, 200-foot high backup dam which included construction
of massive zoned earthen abutments on each end of a roller-compacted concrete section. A backup to the
original Saluda Dam was necessary because the seismic stability of the original dam was inadequate, and the
lives of more than 120,000 people living downstream would be at risk in the event of a catastrophic failure.
Extraordinary steps were taken during construction to ensure the continuous operation of associated power
generation plants and to lessen the impact to recreation and other reservoir needs.

For additional information on the U.S. Society on Dams please visit

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