Best Water/Environment: Georgetown Wet Weather Treatment Station

Georgetown Moist Climate Remedy Station

Seattle

BEST PROJECT

Submitted by Sign Structure + Analysis

Proprietor King County Wastewater Remedy Division

Lead Design Agency The Miller Hull Partnership & Sign Structure + Analysis

Basic Contractor Flatiron Dragados

Civil/MEP Engineer Jacobs; HDR

Structural Engineer Jacobs Engineering; HDR; Shiny Engineering

Lighting Design Blanca Lighting

Artist Sans Facon

Public Artwork 4Culture

Group Engagement  EnviroIssues

Reasonably than hiding behind fences, this moist climate facility sits prominently on the gateway to the Georgetown neighborhood, leveraging strategic website placement, architectural scale and built-in public artwork to speak its mission to enhance the ecological well being of the Duwamish River.

The Theater of a Storm, a sequence of light-based interventions, tracks every remedy stage throughout the ability’s architectural kinds, from consumption to ultraviolet disinfection, rendering seen what would in any other case stay hidden.

Becoming a extremely technical remedy facility into simply 2.5 operational acres posed a number of challenges. The design crew responded by stacking buildings vertically, utilizing gravity to maneuver water via the system and dramatically lowering power consumption, upkeep wants and bodily footprint.

Photograph by Lara Swimmer

Geotechnical upgrades had been additionally important as a result of excessive water desk. Liquefaction-prone soils that flip to quicksand throughout earthquakes required floor reinforcement with stone columns to create strong bearing for heavy processing buildings. A 35-ft-deep concrete slab anchored the underground 100-ft-deep, 100-ft-dia equalization basin, resisting groundwater buoyancy. Crews put in secant and sheet piles earlier than excavating via contaminated soils, sequencing earth-retention constructions and turbidity curtains to guard adjoining waterways.

Photograph by Lara Swimmer

Processing as much as 70 million gallons of mixed rainwater and wastewater every day throughout roughly 20 annual storm occasions, the undertaking considerably reduces Duwamish River air pollution. The undertaking additionally achieved greater than 85% waste diversion, reusing wooden in inside finishes and recycling concrete for subgrade fill.

In recognition of its social, financial and environmental advantages, the undertaking earned Washington state’s first Platinum Envision certification.