Newport Water Treatment Plant

Slayden was selected as the CM/GC Contractor for reconstruction of the Newport Water Treatment Facility. Slayden provided preconstruction services assisting the owner and engineer with value engineering and constructability recommendations as the project progressed from 25% design to the 100% design. The project includes construction of a new Pall Membrane Filtration Process capable of producing 6 MGD and expandable to 10 MGD. The new facility also includes a new Granular Activated Carbon Contractor System, a new Pressure Flocculation System, a new Glass Fused Steel Clearwell and reconstruction of the existing Raw Water Intake in Big Creek Reservoir.

These new improvements will be constructed on the same site as the existing operating Water Treatment Plant while keeping the existing plant in operation. The existing plant was constructed in 1954 and barely meets current demand. The size of the existing plant property will pose many challenges throughout construction of the new process facilities and process piping.

During the preconstruction phase unforeseen conditions were discovered. The geotechnical study determined that extensive ground improvements would be required before construction of the new structures. Investigations of existing facilities uncovered that the existing Raw Water pipeline and existing Raw Water Intake Structure would not be adequate for the new facility. These conditions presented serious budget challenges for the project. Under an early work amendment Slayden Construction completed the ground improvements and a new retaining wall while assisting the City with the value engineering required so that the project could move forward with the funding available.

Total Project Value: $11,169,589.79

Slayden Construction Role: CM/CG

Owner: City of Newport

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