4 Corners Hydraulic System Replacement for Hannibal Locks and Dam

The contract will include a new modified four corner hydraulic system for each lock chamber consisting of Hydraulic Power Units (HPUs) for the miter gates and culvert filling/emptying valves. The new HPUs shall be located in new precast buildings at the following locations: ? Two (2) HPUs on the river wall; one upstream and one downstream for operation of the Main Chamber culvert valves and miter gates.? Two (2) HPUs on the middle wall; one upstream and one downstream for operation of Main Chamber culvert valves and miter gates. In addition, the two HPUs on the middle wall are for operation of the Auxiliary Chamber miter gates. The modified four-corner system reduces the number of HPUs on the middle wall from four to two.? Two (2) HPUs on the land wall; one upstream and one downstream for operation of the Auxiliary Chamber culvert valves and miter gates. The contract specifically includes: a. Installation of new power, control, and fiber optic cables for the six (6) HPUs. Includes modifying the existing control stations in each control shelter for the addition of the new HPUs and miter gate controls. b. Furnishing and installation of six (6) HPUs, fourteen (14) manifold blocks, stainless steel hydraulic piping, and hydraulic oil.c. Furnishing and installation of six (6) precast buildings which includes raised concrete pads, power distribution equipment, associated electronics and hardware, and new utility trench covers in various areas of the lock.d. Furnishing and installation of new Motor Control Center (MCC) distribution equipment.e. Demolition and disposal of existing central hydraulic system located in the middle wall Operations Building. This includes all motors, pumps, reservoir, filters, associated piping, and proper disposal of hydraulic oil.f. Demolition and removal of all existing central hydraulic oil lines on the river, middle, and land walls. This includes all lines for pressure and return to each miter gate and culvert valve cylinder. Removal and proper disposal of hydraulic oil and components will be required. Removal and proper disposal of electrical equipment will be required. Ferrous and all other construction waste material will be disposed of at commercially permitted facilities licensed to accept waste or recyclable materials as applicable.