10/17/2016
The key issue at the Wastewater Plant was developable space. The most feasible way to make room for the needed improvements was to drain a portion of an existing pond, approximately 3/4 acre in size. Excavation to a depth of 23 feet would be required to construct a new gravity thickener, pump station, associated piping and site work. Soil borings indicated that the soft soils onsite could pose a problem for the new construction and network of piping. The engineers estimated if they used normal fill material they could expect settlement in the 8”-10” range. This was not an acceptable plan.>>>>See more at http://escsi.org/ContentPage.aspx?id=1243
Owner: Trinity River Authority of TexasLocation: Central Regional Wastewater System, Dallas, TexasEngineer: CP&Y, Inc.Contractor: Eagle ContractingEngineering Solution: Expanded Shale Lightweight Aggregate