METROPOLITAN TOWER
Seattle, Washington
Owner: Continental-Bentall LLC
Size: 32 stories and 270,000 sq ft
Project Cost: $51.9 million
The new luxury cast-in-place steel frame apartment building features 7 levels of above grade parking, 5
elevators, and 366 units of condominiums spanning over 24 floors. The principal structure utilizes a post-
tensioned concrete slab construction with cast-in-place ductile moment resisting space frames, and
incorporates a precast concrete and glass curtain wall exterior skin.
ORA was engaged to provide complete structural inspections and materials testing services for this
project over a duration of approximately one and a half years.
Testing and inspection services performed by Otto Rosenau & Associates, Inc. include:
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Concrete Batch Plant Inspection
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Curtain Wall Assembly
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Curtain Wall Fab/Erection (Stone & Glass)
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Epoxy Grouted Anchor Bolt Installation
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Epoxy Grouting
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Expansion Anchor Bolt Installation
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Grout Strength (Soil Nails)
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Light Gauge Steel Framing
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Parapet Braces
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Post Tensioned Concrete
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Prefabricated Steel Stair Erection
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Reinforced CMU Masonry
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Reinforced Concrete
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Shoring System Welding
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Shotcrete
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Steel Decking
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Structural Steel Embedments in Concrete
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Structural Steel Fabrication and Erection
ONE CONVENTION PLACE
Seattle, Washington
Owner: Continental-Bentall LLC
Size: 22 stories and 478,580 sq ft
Project Cost: $40 million
The One Convention Place project, which features an office tower and a below grade concrete parking
garage, is just one of the three developments to the Washington State Convention and Trade Center
major expansion. The tower is cantilevered over the existing Convention Center approximately 25 feet
and is designed to allow for connection of structural members for a canopy over Pike Street.
ORA was engaged to perform onsite structural inspections and materials testing services as well as
overseas structural steel fabrication inspection and nondestructive examination. Structural steel was
fabricated by Samsung Heavy Industries Co. Ltd. at their Koji Island Shipyard Facility and their Tangjin
Plant, both located in South Korea. Because of the core column sizes, the core column units were rolled
and fabricated at the SeAH Steel Corporation Facility, located in Pohang City, South Korea.
Testing and inspection services performed by Otto Rosenau & Associates, Inc. include:
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Anchor Bolt Installation
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Back Painted Spandrels
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Epoxy-Grouted Anchor Bolt Installation
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Expansion Anchor Bolt Installation
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Precast Concrete Fabrication and Erection
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Prefabricated Steel Stair Erection
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Tieback Grout Strength
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Reinforced CMU Masonry
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Full Penetration Welding and NDE for Special Moment Resisting Frame
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Reinforced Concrete
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Shoring System Welding
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Shotcrete
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Spray-Applied Fireproofing
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Steel Decking
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Structural Steel Embedments in Concrete
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Structural Steel Erection
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Structural Steel Fabrication – Overseas
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Curtain Wall Fabrication and Erection (Exterior Insulated Panels, Aluminum Panels, and Glass)
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