The Lower Cape Fear Water and Sewer Authority in Leland, North Carolina and McKim & Creed in Wilmington, North Carolina have received an Engineering Excellence Honors Award for the $3-million Kings Bluff intake project, which boosts raw water capacity and enables the Authority to provide a sustainable raw water intake supply for its customers for the next three decades.
The award was presented on Thursday, November 15, by the American Council of Engineering Companies of North Carolina. The Engineering Excellence Awards program is an annual competition that honors and recognizes engineering and surveying firms for projects which demonstrate the highest degree of achievement, value and ingenuity. In 2005, the Authority and McKim & Creed received an Engineering Excellence Honors Award for the Kings Bluff Generator project, which provided a backup energy source to the pump station.
McKim & Creed furnished engineering services for the intake project, which was completed in December 2010. Construction services were provided by Chandler Construction Services, Inc. of South Carolina.
Contractors installed 1,200 linear feet of 60-inch ductile iron pipe and three 54-inch screens six to eight feet below the bed of the Cape Fear River. To accommodate poor soil conditions, engineers designed an innovative foundation system that saved the Authority nearly $90,000. McKim & Creed also developed a construction sequence that did not disrupt the spawning of the shortnose sturgeon, which is an endangered species.
The intake project increases the Authority’s raw water intake capacity from 45 million gallons per day (mgd) to 127.5 mgd. Based on engineering projections, this increased capacity will meet the Authority’s customer needs for the next 30 years and provides a drought-resistant, sustainable raw water intake supply.
This was the Authority’s second stimulus project funded by the American Recovery and Reinvestment Act of 2009.
The project was completed $50,000 below budget and 10 days ahead of schedule. The Authority provides primary raw water supply to a large portion of southeastern North Carolina. Customers
include Brunswick County, the Cape Fear Public Utility Authority, Pender County, and the industries Invista and Praxair.