A.S. King Power Plant

Bayport, MN

Augered Cast-in-place piling overcome adverse soil conditions at a power plant addition.

The soils beneath a 560 megawatt coal fired power plant located in Stillwater, Minnesota consisted of sands, gravel, cobbles and peat layers overlying weak sandstone bedrock. Continuous flight augers advanced through this 20’ of overburden soils and then went 22’ into the sandstone to form 44’-0” piles. A total of 750 piers, carrying 400k ea were installed to support an upgrading of the plants Air Quality Control System (AQCS).

Construction Manager: Lunda Construction Company
Engineer: Black & Veatch