Design and construction of the installation of Granular Activated Carbon (GAC) treatment systems to treat and remove 1,2,3 -Trichloropropane (TCP) from City of Manteca, CA, groundwater. Scope included start-up and commissioning of the new systems and associated improvements for five existing wells at four separate sites. Careful coordination of construction near and sometimes adjacent to […]
In a unique public-private partnership, Overaa will renovate an old building in San Pablo to accommodate 54 residential units. The project will provide permanent supportive housing for up to 58 people experiencing, or at risk of experiencing, homelessness. The design-build, adaptive reuse project will reimagine the two-level, 27,000 SF building as a community of small […]
Design and construction of a 256,276 SF pre-cast hybrid parking structure in Mission Bay, a very congested area of San Francisco. The facility includes 882 parking stalls on nine-levels with two elevators. The exterior features DNA bar-code style custom glass cladding. Overaa self-performed the vertical poured-in place concrete and foundations. The project was awarded Excellence […]
Design and construction of a four-story student housing complex on a very tight urban site. The structure is immediately adjacent to the Hayward Fault and was designed to exceed the seismic standards of the current building codes. Building exteriors include architectural features that provide an attractive enhancement to the surrounding historic hillside district. Carefully constructed […]
Design-build LEED Silver project consisting of the construction of multiple buildings on a congested 30-acre site. The new buildings included the Armed Forces Reserve Center (AFRC), Army Reserve Regional Readiness Sustainment Command Headquarters (RRSC), Fitness Center, Organizational Maintenance Shop (OMS) Facility, and UNIT/UHS Storage Building. All together, new construction totaled 279,000 SF. During preconstruction, we […]
Design and construction of two cast-in-place parking structures to accommodate biotech’s South San Francisco campus growth. Parking Structure I is a 165,000 SF, five-level, 489 stall facility. Parking Structure II is a 199,767 SF , seven-level, 640 stall facility. Combined, Overaa placed 14,900 CY of concrete on the projects.
Overaa has provided three design-build parking garages for the Stanford Campus including this 1,064-stall facility. All together, these 3 parking facilities provide 3,284 parking spaces for Stanford students, faculty, and visitors.
Design-build renovation and rehabilitation of a 70,000 SF steel-framed city hall and adjacent former police department into a new, seismically upgraded LEED Gold Essential Services Facility (ESF). Steel bracing and concrete shear walls were added, new exterior stone cladding was installed; existing historic brick cladding and MEP systems and interiors were restored; existing historic building […]
Design and construction of a major addition to an operational hospital facility. A central plant was built to provide utility support to the new addition. This included the installation of a new 750KW emergency generator system and its associated ATS’s. A new steam plant powered by a sequence of steam boilers, new hot water boilers, […]
Design and construction of a 393,000 SF cast-in-place parking structure in a congested urban environment. The seven-level facility was built on an existing on-grade parking lot in the heart of an operating hospital campus. A multi-story hospital was also being built concurrently on-site. Careful coordination with Sutter Health services and adjacent contractors was required. The […]