REPAIR SLUICE GATE 2, PUMPWELL 5

SILVERDALE, WA

Sluice Gate No. 2 is one of three 73-inch-wide by 94-inch-high motor operated sluice gates in the drydock dewatering pump suction chamber for Drydock 5 at Puget Sound Naval Shipyard. The project involved removing the existing deteriorated sluice gate and mating thimble as well as the existing motor, operating mechanism, seal plate and operating controls. A new sluice gate, thimble, motor, operating mechanism and controls were installed, and the seal plate was refurbished and reinstalled. In order to accommodate working in the pump well, cofferdams had to be installed as the pump well is always at least partially flooded. Art Anderson Associates developed the design package including drawings, specifications, basis of design and design analysis to replace the sluice gate system and install cofferdams to accommodate the construction phase of the work. During the construction phase Art Anderson provided support to Triton Marine in the form of submittal reviews, preparation of RFIs and technical guidance related to the installation process as well as actual conditions found.