Federal Center South Building 1202 Redevelopment

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Federal Center South Building 1202 Redevelopment LOT SIZE 385,506 SF BUILDING SIZE 209,247 SF LOCATION Seattle, Washington PROJECT TYPE Civic

Federal Center South Building 1202 Redevelopment Inside the resilient stainless steel exterior of Federal Center South Building 1202, lumber salvaged from a timber-framed warehouse that once stood on the site provides structure and rustic Northwest character for the regional headquarters of the United States Army Corps of Engineers (USACE) in Seattle, Washington. The project is the result of the 2009 American Recovery and Reinvestment Act (ARRA), which focused on improving our nation’s infrastructure and creating jobs. The project aligned the U.S. General Services Administration’s (GSA) Design Excellence Program with the high performance building and carbon reduction goals of the Energy Independence Act to challenge and improve highperformance design standards. One of the most aggressively sustainable office buildings of its time, high-performance features include innovative daylighting strategies, building orientation, integration of a central atrium, and the use of optimized mechanical systems—featuring chilled beams; heat recovery on ventilation air; thermal energy storage; and phase change material tank for efficient conditioning. Solutions resulting from the integrated design-build process included waste elimination with optimized handoffs between designers and contractors, optimized building systems (rainwater harvesting, thermal storage, ventilation, geothermal heating and cooling), timber

reclamation, and continuous process improvement from start to finish. The project is one of the most sustainable/high performance buildings in the United States, performing in the top 1% of energy efficient buildings. It received LEED Platinum certification and exceeded the guaranteed energy and water performance requirements for the building. In addition to the aggressive energy goals met, the building’s design also creates an optimal space for its inhabitants. The building’s U-shaped form, also known as the “oxbow”, and diagrid structure provide a flexible workplace environment for the USACE emblematic of their mission of “Building Strong” while simultaneously meeting GSA’s security requirements for progressive collapse, ensuring the building will remain standing should the structure be compromised. The narrow office bar of the oxbow design optimizes daylight penetration to reach every workstation, providing occupants with direct visual access to nature, and bridging the indoor-outdoor connection. With all workspaces taking shape around the central commons/ atrium, the design fosters community and creates a collective identity for all departments and the 530 employees who occupy the building. Echoing the original oxbows of the adjacent Duwamish Waterway, the building’s form forces the desiloing of departments into an integrated community.

Town Center – Central Commons Area

Shared Internal Resource and Support Spaces

Community Center – Flexible Team Spaces

Neighborhoods – Work Groups

Natural Forms

Transparency

Community

Flexibility

Connectivity

Neighborhoods

Inside/Out

Views

Structure

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Lobby / Secured Entry Elevators 3 Atrium Landscaping 4 Open Office 5 Private Office 6 16 Private Office Suite 7 Conference Rooms 8 Multi-Purpose Room 9 Focus Room 10 Kitchenette 6 11 High-Density Shelving 3 12 Exit Stair 13 Plaza 14 Loading Dock 15 Utility Rooms 16 Locker Room 12

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9 Lobby / Secured Entry 10 Elevators 11 Atrium Landscaping 12 Open Office 13 Private Office 14 Private Office Suite 15 Conference Rooms 0 Room30 FT16 Multi-Purpose

Focus Room Kitchenette High-Density Shelving Exit Stair Plaza Loading Dock Utility Rooms Locker Room

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Focus Room Kitchenette High-Density Sh Exit Stair Plaza Loading Dock Utility Rooms Locker Room

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Pacific Northwest graphics, evocative of the rivers and waterways of the region, contribute to wayfinding and underscore USACE’s focus as an agency. The designs directly reference the Duwamish Waterway and its four tributaries, enhancing gathering spaces and highlighting local history.

SECTION North to South

ELEVATION South

The high performance green building strategy guarantees an Energy Use Index (EUI) of 25.7 KBtu/sf/year, an energy score of 98, and energy performance 40% better than ASHRAE 90.1 placing the LEED Platinum building in the top 1% of office buildings nationwide.

LANDSCAPE Building and Hardscape

Native and Adaptive Landscaping

River Ecosystem

SITE WATER Gather and Treat in Rain Gardens

Series of Weirs Direct Water to West Bioretention Pond

Treated Runoff infiltrates and flows to the Duwamish River

BUILDING WATER Gather and Store in Cistern

Treat with Ozone

Re-use for Irrigation / Grey Water for Toilets / Grey Water for Cooling Tower / Atrium Water Feature

STORMWATER FACTS 8.8-acre site was 100% hardscape and is now 34% Retains the 95th Percentile Rainfall event Approx. 99% of runoff naturally treated Facilities include 39,000 SF of rain gardens, bioretention facilities, 1,170-lf filter strips and a bioswale

Bioretention Pond Recirculating Source Stone Atrium Water Feature

Porous Pavement Water Quality Filter Strip Site Grading Rain Garden Filtration Zone

Existing Outfall

SOIL

Compost Amended Soils 25,000 Gallon Cistern

Stormwater is utilized for landscape, site water, and building “source” stone water features.

Duwamish River