public facilities

Federal Center South Building Redevelopment

Location: Seattle, Washington

This $72 million project involved construction of the highly flexible and sustainable 209,000-square-foot regional headquarters for the U.S. Army Corps of Engineers Northwest District. The work consisted of site development, foundations, structural steel and timber framing, concrete structure, and entire interior build-out. The state-of-the-art facility is expected to merit a LEED gold certification and become the region’s most energy-efficient air-conditioned building. Green elements include extensive use of natural daylight; conversion of existing hardscape into low-impact sustainable green space; use of recycled timbers and other building materials; a 25,000-gallon rainwater harvesting cistern; a rooftop system that captures and recirculates heat; and phase change material, a gel substance that speeds up cooling and heating in the building. The project won first place for a high-performance building from the Sustainable Buildings Industry Council, and the American Institute of Architects honored it as one of the top ten green projects in the United States.

ORA’s testing and inspection scope of work included the following items:
  • Subgrade evaluation
  • Fill placement and compaction
  • Infiltration testing
  • Pipe pile welding
  • Structural steel fabrication and erection
  • Nondestructive testing of welds
  • Reinforced concrete
  • Column base plate grouting
  • Reinforced masonry
  • Pull testing
  • Bar lock couplers
  • Anchor bolt installation
  • Epoxy grouting of rebar dowels and anchor bolts
  • Lateral framing

Fire Station #2 Renovation

Location: Seattle, Washington

This $13.6 million project involved the renovation and seismic upgrade of the oldest working fire station in the City of Seattle. The existing 38,000-square-foot, two-story masonry structure, constructed in 1921, was preserved as an important historic landmark while expanding its operational capability and updating it to meet the new master facilities program of the fire department. Improvements include a remodeled interior to provide more space for fire operations with dedicated spaces for decontamination, gear storage, and capacity for another firefighting vehicle; space to house one of the City's three new fragmentation caches; and a new occupational health center for treating injured firefighters.

ORA was engaged to provide testing and inspection of the following items:
  • Epoxy grouting of rebar and anchor bolts
  • Mechanical anchor bolt installation
  • Structural steel stair fabrication
  • Structural steel erection
  • Magnetic particle examination
  • Seismic tie installation
  • Wood seismic resistance system
  • Reinforced concrete
  • Non-shrink grout
  • Shotcrete

Hazen Reservoir

Location: Renton, Washington

This project involved the construction of a 4.2-million-gallon welded steel tank; site work, including excavation, grading, construction of a detention pond, reservoir access road, landscaping and site fencing; utilities, including storm water conveyance system, control valve vault, flow meter vault, 16-inch-diameter water main and 12-inch-diameter water main; electrical power and controls; electrical building; and the installation of an altitude valve and flowmeter in a vault at the City of Renton's Highlands Reservoir. The estimated construction cost is $5.4 million.

ORA’s scope of work included testing and inspection of the following items:
  • Structural steel (including radiographic testing)
  • Soil compaction
  • Reinforcing steel
  • Reinforced concrete

Enumclaw Wastewater Treatment Facility Expansion

Location: Enumclaw, Washington

This project involved the expansion of the existing Enumclaw Wastewater Treatment Facility in order to meet environmental standards and accommodate future population growth. At an estimated cost of $26 million, the treatment plant expansion is the most expensive project in City of Enumclaw history.

ORA was engaged to provide geotechnical services, as well as testing and inspection of the following items:
  • Soils compaction
  • Asphalt paving
  • Reinforcing steel
  • Reinforced concrete
  • Grout
  • Reinforced masonry
  • Pachometer (locating services)

Cedar River Water Treatment Facility

Location: Renton, Washington

This project involved construction of a $40 million water treatment facility which includes an operations building that houses the main control room, analytical laboratory, offices, workroom, and lockers; a new intake structure and pump station; an ozone generation and injection facility; an Ultraviolet Light (UV) disinfection facility; and two pre-stressed concrete clearwells.

ORA was engaged to develop a comprehensive quality control plan and provide onsite quality control as well as testing and inspection services for the following elements:
  • Soil compaction
  • Reinforced masonry
  • Reinforced concrete
  • Seismic cable sets installation
  • Pre-stressing of vertical threadbars and circumferential strands
  • Pre-stressed threadbars and strands placing
  • Shotcrete
  • Epoxy grouting
  • Grout testing
  • Non-shrink grout placing
  • Anchor bolt installation in concrete
  • Structural steel fabrication and erection
  • Nondestructive testing of welds

John L. O’Brien Building Renovation

Location: Olympia, Washington

The existing neoclassical John L. O'Brien Building, which houses 64 of the 98 Washington State House of Representatives members, became both an earthquake and a fire risk after the destructive Nisqually earthquake in 2001. This project involved a $47.5 million renovation consisting of seismic and life safety upgrades, replacement of aging and failing infrastructures, energy conservation, and efficiency improvements to the four-story structure constructed in 1940 on the Capitol campus.

ORA was engaged to provide the following testing and inspection services:
  • Reinforcing steel
  • Reinforced concrete
  • Shotcrete
  • Structural steel fabrication and erection
  • Ultrasonic testing of welds
  • Proprietary anchors – adhesive and mechanical
  • In-place shear testing

Jackson Federal Building Design/Build Modernization

Location: Seattle, Washington

This $40 million project involved seismic upgrades and renovations to an existing 36-story, 854,000-square-foot federal office building. Renovations included repairing and replacing the casing and masonry of a one-square-block exterior, multi-level plaza renovations, upgrades to 22 elevators in the building, restroom upgrades on each floor to meet ADA requirements, an emergency generator, and new mechanical systems throughout. Security protocols and internal agency move logistics were coordinated closely with a number of federal agencies. The building was fully occupied and operational during construction. The building is LEED Registered with a certification goal of Silver.

ORA was engaged to provide the following testing and inspection services:
  • Reinforcing steel
  • Reinforced concrete
  • Epoxy grouting

Brightwater Marine Outfall

Location: Woodinville, Washington

The outfall consists of twin, mile-long, 63-inch-diameter High Density Polyethylene (HDPE) pipes with concrete ballast anchors. Each pipe terminates in a 250-foot diffuser section having 30 six-inch-diameter ports to disperse the effluent. The diffusers on the two parallel pipes are staggered along the alignment to provide a 500-foot-long mixing zone. The pipes were assembled by heat fusion north of Seattle at a Port of Everett fabrication site along the Snohomish River and stored in the river until deployment. Precast concrete anchors were added to the HDPE pipe at the Everett yard prior to pushing the pipe into the river. The project was completed ahead of schedule and significantly under budget. The final construction cost was about $29 million, 23% less than the original estimate of $38 million. Commitment to the environment during the design and construction earned King County a “Project of the Year” award from the state chapter of the American Public Works Association.

ORA was engaged to perform inspection of the following items:
  • Structural steel
  • HDPE fusion
  • Holiday testing

Lake Line and Pump Station No. 4

Location: Mercer Island, Washington

The project involved replacing a 9,000-foot-long segment of sewer line located along the north and northwest shoreline of Mercer Island and replacement of Pump Station No. 4. This project was funded by local and Federal grants.

ORA was engaged to provide testing and inspection of the following items:
  • Asphalt paving
  • Soils compaction
  • Reinforcing steel
  • Reinforced concrete
  • Structural steel

Maplewood Water Treatment & Golf Course Improvements

Location: Renton, Washington

This project included the construction of a drinking water treatment plant facility, modifications to an existing water treatment and booster pump facility, miscellaneous security improvements to three well facilities, and miscellaneous improvements to the adjacent golf course areas.

ORA was under contract with the City of Renton Public Works Department to provide all necessary materials testing and special inspection services in support of this project, which included the following items:
  • Reinforced concrete
  • Reinforced masonry
  • Prism measurements
  • Epoxy grouting
  • Wedge type anchor installation
  • Steel decking
  • Structural steel and welding
  • Soils compaction
  • Asphalt compaction

High Point Neighborhood Center

Location: Seattle, Washington

This $13 million project involved construction of a new 20,000-square-foot neighborhood center with classrooms, offices, a basketball court, meeting space, conference rooms, and kitchen. The LEED-gold facility also houses several non-profit agencies for various human services programs. The project received funding from the State of Washington, Seattle Housing Authority, and other private and public sources.

ORA was engaged as the geotechnical and structural special inspection agency of record. Our testing and inspection scope of work included the following:

Geotechnical:

  • Soil bearing verification
  • Monitor seasonal grade condition
  • Verify structural fill and compaction
  • Sub/ surface drainage installation
  • Erosion control
  • Retaining wall installation and backfill

Structural:

  • Reinforced concrete
  • Reinforced masonry (veneer)
  • Seismic ties in masonry
  • Epoxy-grouted anchor bolt installation
  • Holdown System
  • Lateral framing – shearwall and diaphragm nailing
  • Steel seismic resistance system (special steel moment frame)
  • Ultrasonic examination of welds

Rainier Beach Community Center Redevelopment

Location: Seattle, Washington

This project involved construction of a 46,000-square-foot facility housing a gymnasium with a full basketball court; dividable multi-purpose room to support meetings, large events, and educational and fitness classes; kitchen; teen rooms; computer lab; arts and crafts room; childcare facility with its own kitchenette, restrooms, and fenced play area; and natatorium with a six-lane lap pool, recreational pool with a waterslide and lazy river, spa, sauna, and associated locker rooms.

ORA was engaged by Seattle Parks & Recreation to provide testing and inspection of the following items:
  • Expansion anchor bolt installation
  • Epoxy grouting of rebar dowels and anchor bolts
  • Structural steel erection and fabrication
  • Nondestructive weld examination
  • Reinforced concrete
  • Reinforced masonry
  • Column base plate grout
  • Shotcrete
  • Lateral framing
  • Paint mil thickness
  • Pachometer (locating services)
Otto Rosenau & Associates, Inc. (ORA) | 6747 Martin Luther King Jr. Way S. | Seattle, WA 98118-3216 | U.S.A