Pipe runs from prison, welcomed by town

Article Abstract:

Project engineers A.W. Goodman and Assoc finished building an 8-inch thick, 19-mile high-density polyethylene wastewater pipeline from the Branchville Training Center, a minimum security jail, to Tell City, IN. The Indiana Department of Transportation allowed the $2.1-million project since they were satisfied that the pipeline, with its butt-fused joints, would not leak. The pipe runs along Route 53, a limited access highway that cuts through the Hoosier National Forest. Workers, who began in Aug 1991, managed to lay out the lightweight 50-foot pipes at a rate of 2,500 feet per day.

Indiana, Sanitary engineering

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Slurry walls help cut off contaminants

Article Abstract:

Geo-Con Inc of Denton, TX, will use the biopolymer deep drainage technique intheir latest geotechnical job. The project involves the installation of groundwater interceptor trenches wherein engineers will use slurry instead of mechanical bracing to reinforce trench side walls. They will then construct high-density polyethylene (HDPE) manholes and lift stations through the slurry and within the interceptor trenches. Manholes will have HDPE inlet pipes which will collect water while lift stations will contain dual pump systems which will transport collected water to treatment plants.

Decontamination (from gases, chemicals, etc.), Decontamination, Slurry trench construction, Slurry wall construction

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Liner Lessons

Article Abstract:

This article discusses new ways of reconstructing sewer systems using slip-liner pipes. Slip-lining is done by constructing upstream interceptor sewers, which divert flow to upstream relamation plants. Pvc-pipe-lining system is installed through manholes and the liner pipes are designed to withstand all loads.

California, Los Angeles County, California, Sewer districts

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