12.8 km x 6 m-diameter TBM-driven sewer in design for Nancy Creek, Atlanta for completion in response to consent decrees by February, 2003. Hard metamorphic rocks expected with gneiss, schist, quartzites and granite predominating. Internal lining to 5 m-diameter proposed. Design/build request for proposal due end-June, 2001. Visit www.jjg.com 25/01.
Award imminent for $40 million, 1.28 km-long x 3.65 m-diameter steam distribution conduit to be driven for ConEdison beneath 1st Avenue by hardrock TBM between two 33.5 m-deep x 7 m-wide x 12 m-long shafts. Design/build contractor will select lining. Visit www.jenny-engineering.com 29/01.
The Atlanta City Council has approved a $131.5 million contract for Obayashi Corporation to construct the Nancy Creek sewer tunnel. The purpose of the tunnel is to store rain and sewer overflows until the water can be treated. Much of DeKalb County's sewage flows into the Nancy Creek basin and the city system. The tunnel will originate in north DeKalb where about 4,000 feet (1,220 m) is to be built, and will continue another 7.9 miles (12.7 km) to an Atlanta sewer plant on a bank of the Chattahoochee river. Visit www.obayashi.co.jp/english/index.html 31/02.DeKalb County commissioners voted a resolution backing the city of Atlanta's plans to build part of the 12.9 km-long Nancy Creek sewage tunnel underneath the homes of several dozen DeKalb residents in a neighbourhood between Dunwoody and the city of Chamblee. The $131.5 million tunnel would begin just east of the Chattahoochee river near I-75 and run underneath parts of Atlanta. It would end in DeKalb. Construction awarded to Obayashi. Read E-News Weekly # 42. 42/02.