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Wanapum Dam Lower Boat Launch

Project Summary

The Wanapum Dam Lower Boat Launch is a facility located on the upper Priest Rapids Reservoir of the Columbia River just below the Wanapum Dam near Beverly, WA. The Grant County Public Utility District #2 hired Mackay Sposito to design improvements to the facility as a condition of their recent Federal Energy Regulatory (FERC) license renewal. The project includes the demolition of an existing parking lot, demolition of an existing launch ramp, the design of a ADA compliant launch float, boat launch ramp, and parking area (including boat queuing, tie-down area, passenger car parking, vault toilets, picnic tables, and signage). To complete the current phase, Mackay Sposito performed survey and bathymetric surveys, developed conceptual designs and cost estimates, coordinated with designer for adjacent future office building and parking lot, and coordinated the geotechnical evaluation and cultural resources surveys. Conceptual design included the development of both civil site drawings as well as landscape architecture and park amenities. Future work will include coordinating a full range of sciences (natural resources, environmental, etc.) for permitting, performing the environmental permitting effort, full design of the civil and landscape architecture components of the project, and full construction management services.