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United States, Indiana - us/24

Evansville Sewer

2.6 km drive by Jay Dee Contractors in sands, silts and clays along Weinbach Avenue by 3.5 m diameter Lovat EPB. 3.2 m to 6.4 m cover. Project includes 15 manhole shafts. No dewatering allowed over most of drive because of proximity of business and residential property. TBM under launch. Sept 1999.   Lovat has completed over 1 km, lately in difficult ground conditions caused by fractured utilities above the alignment. The machine was delayed while a relief shaft was sunk and well points installed. Currently achieving 13 m/shift erecting ribs and lagging at 1 m intervals and drilling a 30 m-long drainhole at every set. November 1999.  Contract value reported as $11.2 million with design and construction management supplied by Clark Dietz with Haley & Aldrich. Tunnel lined with ribs and lagging prior to installation of 2.4 m RCP and grouting of the annulus. Drive holed into reception shaft on 22.02.2000 having averaged 25 m/10h day and pipe installation now complete. Project final completion due late-September. Visit www.lovat.com June 2000.Affholder has received a $6.95 million contract from the Indiana Department of Transportation to build a new sewer tunnel in Evansville. The 1,465 m-long, 2.44 m-wide tunnel will run 12 m below Highway 66. It will take two 15-worker crews about seven months to bore the tunnel. The project is scheduled to be completed in July 2004. Visit www.insituform.com/corporate/corp_affholder.html 48/03.



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