Market - Retail

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.

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.

Three City Center, Allentown, Lehigh County, PA

  • Provided geotechnical services to facilitate the design and construction of the 166,000-SF, seven-story office/retail building in downtown Allentown.
  • GTA was able to provide significant cost-savings through the use of a limited foundation over-excavation/replacement scheme combined with deeper soil improvement/void stabilization through the use of compaction grouting techniques.

Sinkhole Remediation for Retail Store, York, PA

  • Provided exploration and recommendations to minimize the damage caused by sinkhole formation within an active retail store loading dock area.
  • Recommended a temporary solution to backfill the void below the loading dock, allowing the trailers to be parked safely.
  • Prepared a subsequent plan of compaction grouting involving 82 individual grout points, and approximately 260 cubic yards of grout.

Union Wharf, Baltimore City, MD

  • Awards: Multifamily Community of the Year & Best Rental Apartment Community – NAHB; WaveMaker Award – Baltimore ULI.
  • Phase I and II Environmental Site Assessments for the $72 million redevelopment of a former industrial property into an upscale, LEED Silver designed, mixed-use facility containing 281 apartments, 4,500-SF of retail space, and nearly 500 parking spaces.
  • A geophysical evaluation included electromagnetic (EM) survey and ground-penetrating radar (GPR) to identify subsurface obstructions.