Deep Creek Watershed Dam is the first in the United States to use grout enriched roller compacted concrete (GERCC) as the sole upstream barrier. GERCC offers several advantages, including an attractive, functional dam facing that is less expensive than other options and relatively easy to construct. The dam has a maximum height of 74 feet and is about 750 feet long. A zoned earthen embankment extends 800 feet from the end of the dam to the left abutment. The facility provides both flood control and water supply.
Schnabel provided comprehensive engineering services for the design of this dam, including site characterization, development and analysis of design alternatives, hydrology and hydraulics, and final design of the dam and associated structures. This project was the recipient of the 2013 U.S. Society on Dams Award of Excellence in the Constructed Project, as well as the 2013 American Council of Engineering Companies North Carolina Engineering Excellence Grand Award. Since the dam’s completion, GERCC has been used for other dams in the United States and its territories.
Click here for a detailed account of the project in an article appearing in the September 2013 issue of Water Power & Dam Construction magazine.