Chaska MN
Behind The Project
Magney Construction has completed a number of projects for the Metropolitan Council in the Twin Cities. The Metropolitan Council owns and operates the wastewater treatment plants, pumping stations and piping for the Twin Cities area.
We were awarded a contract for the replacement of the Chaska L-71 Lift Station in February 2015. This project involves construction of a 68 foot diameter concrete structure that is approximately 40 feet below grade. It is like a buried silo with the top above grade. The reason the structure is so deep is because it is a sewage lift station and much of the wastewater from the southwest suburbs flow by gravity to this low point.
This lift station will be equiped with six - 125 horsepower pumps that will pump the sewage to a wastewater treatment plant approximately 10 miles away. The construction is very unique in that we build the silo above grade and then excavate the center out allowing it to sink to the proper elevation. Once at the proper elevation we will place approximately 1,200 cubic yards of concrete in the center to create the bottom.
We are currently about 50% complete with the project. The current contract amount is approximately $10.9 million and scheduled for completion in the Summer of 2017.