Washington County, OregonWashington County, Oregon

March 19, 2014 Board Meeting

Engineering Department Report

Washington County, OregonGarden Home Reservoir

Construction Update

Today’s presentation:

• Brief project history

• Reservoir information

• Construction video

• Next steps

Washington County, OregonProject History:

• Steel water tanks built in 1952 and 1962. These tanks were not designed for seismic events.

• District initially planned a seismic retrofit project, but costs would have been comparable to replacement.

• Additional storage was needed in Metzger, so a larger replacement tank was designed.

• Neighborhood opposition delayed the project, but construction started in summer 2013.

Washington County, Oregon

Reservoir information:

• 1.75 million gallon pre-stressedconcrete reservoir designed to current seismic codes.

• New water lines and valves on-site.

• Automatic control capabilities to isolate tank.

• Ability to distribute tank water to fire apparatus or emergency distribution station.

• Landscaping and tank painting as compromise with neighbors.

Washington County, OregonGarden Home Reservoir