For the Portland Water Bureau, Winterbrook led the land use and environmental compliance tasks for a new below-ground reservoir and the historic redevelopment of open water features in the Washington Park Reservoirs Historic District.

The project replaced aging reservoirs with new reflecting pools and the historic Romanesque Dams and Gatehouses were restored. The new reservoir maintains the historic drinking water function provided by the original reservoirs – but is engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake.

The consolidated conditional use and historic review application was favorably reviewed by the Portland Landmarks Commission, the Portland Hearings Officer and the Portland City Council.