Case Study

Baumgartner Tunnel Shafts

Baumgartner Tunnel Shafts

' Owner: Metropolitan St. Louis Sewer District ' General Contractor: Baumgartner Tunnel JV (Frontier Kemper and Gunther-Nash) ' Technique(s): Diaphragm Wall ' Subsurface Conditions: Clays, Silts, Sand, Gravel, Cobbles, Shale, Claystone, and Limestone PROJECT CASE STUDY he Baumgartner Tunnel in St. Louis was construct- ed to carry wastewater from the Baumgartner Lagoon Pump Station to the newly constructed Lower Meramec Wastewater

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