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Subcontractor of the Year - 2011  

 Town of Schererville: Bracing for New Interceptor Sewer
 Installation of Channel Bracing
 Schererville, Indiana
 
Click to enlarge
Interceptor sewer support bracing - installed
Thatcher Foundations Inc. completed this subcontract for Grimmer Construction, Inc. Two design challenges arose in the field. First, after Thatcher had mobilized, it became clear that the spring floods had altered the below ground conditions, and a change of design was required. The bracing frames were modified from a 30' setup to a 20' setup to accommodate the changed installation methods. Secondly, the initial project documents called for galvanizing of the material. Thatcher communicated to the general contractor that galvanizing would not be practical because of the field cutting and welding involved in the construction of this portion of the project. The project engineer agreed with Thatcher's assessment, and the galvanizing requirement was waived for this work.

Safety challenges were also present on this project. Spring rains raised the level of a nearby creek, and the below-grade workspace was flooded on one workday. Grimmer crews brought in additional pumps to clear the water from the workspace, and Thatcher's crew stayed onsite and completed its portion of the day's work after the water was removed. Despite the wet conditions, Thatcher safely completed 233 manhours on this project.

 

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