- 24-story, 365,000-SF office building with Class AA office space, dining, retail, fitness center, conference center, 3 levels of below grade parking, and 10 levels above grade parking.
- GTA provided the geotechnical study, including recommendations pertaining to design of spread foundations on the bedrock surface, and construction observation and special inspections.
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Avocet Tower, Montgomery County, MD
- GTA provided geotechnical and environmental consulting services.
- 22-story, 520,000-GSF mixed-use building with 220-key AC Hotel by Marriott, 370,000-SF office tower, and 2-story underground parking garage.
1769 Jerome Avenue, Bronx Borough, NY
- Geotechnical engineering, support of excavation (SOE) design, special inspection services including deep foundation load testing, and review of Site Safety Plans for the new 16-story, 144,000-SF mixed-use building with 175 affordable residential units, a footprint of approximately 15,000 SF, and partial cellar level 10 feet below the sidewalk level.
- The building is supported by a combination of footings bearing on rock and 180-ton caisson piles socketed into the highly weathered rock.
The Highlands, Arlington County, VA
- Part of the West Rosslyn Area Plan Study (WRAPS), a County-driven and community-involved redevelopment opportunity.
- Geotechnical engineering, environmental consulting, and COT services for the 1,200,000-SF above grade complex with three high-rise towers containing upscale condominium and luxury apartment communities, and ground floor retail. The complex also includes four levels of below grade parking for approximately 1,050 cars.
M-NCPPC Wheaton Headquarters, Montgomery County, MD
- Environmental & geotechnical consulting during design, and environmental services during site excavation & construction.
- $170 million, 308,000-SF office building with a 4-story underground parking garage, 1st floor retail, 14-stories of office space, Town Square, and transit connection.
- USGBC LEED Platinum certified.
- A geothermal heating/cooling system was installed beneath the parking garage; this is one of the first such applications in MD.
Liberty Harbor East, Baltimore City, MD
- Geotechnical and environmental consulting for the 23-story, 750,000-SF, mixed-use building with apartments, condominiums, retail, and parking.
- COT services and environmental consulting during construction of building’s foundation.
- Instrumentation and monitoring plan to monitor settlement of a century old brick-lined stormwater tunnel supported on timber piles, located less than 10 feet from the proposed 3- to 6-foot diameter caissons.
Mariner Bay at Annapolis Towne Centre, Building 2, Anne Arundel County, MD
- Subsurface explorations including SPT borings, seismic Cone Penetration Test soundings, and test pits.
- 12-story mixed-use facility including 208 luxury apartments, 95,000 SF of retail, and 1,000-car parking structure.
- The seismic CPT soundings allowed GTA to improve the seismic site class for the site resulting in a cost-effective structural design.
- Construction phase observation and testing services.
Four Seasons Hotel & Legg Mason Office Complex, Baltimore City, MD
- 22-Story luxury hotel and condominium tower and a 26-story office tower at Baltimore’s waterfront with 5-story below grade parking.
- Construction observation and testing included a slurry wall, mat foundation, post-tensioned concrete, micro-piles, caissons, and tie-back anchors.
- Geotechnical, environmental, and hydrogeological services including borings, monitoring wells, seismic analysis, and in-situ permeability testing.