Upgrades to the existing East Marsh Pumping Station. This includes renovations to the pumping station building to accommodate the new upgraded pumps and removal of the existing indoor diesel standby generator. A new standby generator (pre- purchased) will be placed outside on a pad and new pumps, discharge chamber, outfall piping, and site grading will be provided. In water works to include construction of a new armour stone rock bank and rip rap stone spillway in Lake St. Clair. The pumping station is also to receive new architectural, structural, mechanical, electrical, security and communication upgrades/modifications throughout, complete with commissioning services. Supply & install a temporary bypass pumping station to be operational with continuous monitoring and maintenance for the duration of the construction.