Market - Commercial

2100 S. Tyron Street Office Building, Mecklenburg County, NC

  • Four-story, 80,000-SF office building in the vibrant South End District of Charlotte.
  • Geotechnical engineering, construction materials testing, and special inspections for the building and its surrounding site, including geo-pier foundation system design and installation monitoring.

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.

Village South at Waugh Chapel, Anne Arundel County, MD

  • Drilling, lab testing, geotechnical engineering, environmental consulting, & COT services for the 100-acre, 1.2 million-SF residential, retail, & commercial development, located at the site of a former sand & gravel mine reclaimed with fly ash.
  • Site issues encountered included: fly ash fill, loose fly ash, uncontrolled fill, a stump dump, a deep mined hole, a tall retaining wall on uncontrolled fill, an existing deep sewer with poor backfill, and a proposed deep sewer close to a building.

Wheaton Triangle Office Building, Montgomery County, MD

  • Environmental & geotechnical consulting during design, and environmental services during site excavation & construction.
  • $170 million, 489,714-SF office building with a 4-story underground parking garage, 1st floor retail, 14-stories of office space, Town Square, and transit connection.
  • New headquarters of M-NCPPC.
  • A geothermal heating/cooling system will be located beneath the parking garage, one of the first such applications in MD.

Big Chill Beach Club, Sussex County, DE

  • Public/private joint venture between DNREC and La Vida Hospitality Group.
  • 200-seat oceanfront restaurant and event facility located at Delaware Seashore State Park.
  • Geotechnical engineering; electronic Cone Penetration Test (CPT) soundings extending upwards to 100 feet deep; COT services including Class B timber and 12×12-inch concrete pile installation, vibration monitoring during pile installation, and site visits and reports for bank draws.

The Residences at Mid-Town Park, City of Wilmington, DE

  • Subsurface exploration, laboratory testing, geotechnical engineering, and COT services.
  • Shear wave tests and post construction dewatering recommendations for foundation and pavement design.
  • 417,000-SF, 3 levels of underground parking for 511-cars, requiring excavations of about 32 to 44 feet.
  • 5-story and a 7-story buildings connected by pedestrian bridge, retail, 198 apartment units, elevated courtyard, and resort-style swimming pool.

6410 Arlington Boulevard, Falls Church, VA

  • Geotechnical engineering, retaining wall design, environmental consulting, & COT services for 2 stories of below-grade parking, & 5 stories above-grade w/ apartments, retail, & townhouses.
  • Obstacles included adjacent parking garage w/ uncertain foundation conditions, adjacent below grade parking garage which could not receive additional lateral loading, existing fill and loose, wet soil conditions.
  • COT for this project fell under the stringent guidelines of Fairfax County’s Special Inspection Program.

Point Street Apartments, Baltimore City, MD

  • Geotechnical engineering, environmental consulting, and COT services for the 270,000-SF, 17-story apartment building with a one-level, 40,000-SF below grade parking garage, and 18,000 SF of retail space on the first floor.
  • The foundations for the project include over 300 driven, environmental concentric closed-end steel pipe piles filled with concrete.

Waugh Chapel South Building 11, Crofton, MD

  • Three-story steel framed building is situated over controlled fills and native soils at a former sand and gravel mine.
  • GTA performed design-phase exploration for the building. GTA’s exploration included two in-situ dilatometer soundings. The results of the DMT soundings allowed us to significantly increase the allowable bearing pressure that was previously assigned, based on Standard Penetration Test (SPT) data, resulting in reduced footing sizes, and construction cost savings.

Sand & Gravel Mining Site Potential Redevelopment, Charles County, MD

  • Planned mixed-use development at the site of an existing sand and gravel mine.
  • GTA performed a combination of SPT, CPT, and DMT soundings to evaluate the engineering characteristics of the soils and determine their potential impact on development.
  • GTA worked with the project team to devise several options/methods for construction of structures in areas which are underlain by the wash pond sediments.