Market - Parking Structures

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.

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‚Äôs Special Inspection Program.

Horseshoe Casino, Baltimore City, MD

  • Geophysical testing, geotechnical and environmental consulting for new two-story 140,000-SF casino and associated seven-level, 3,500-car, above grade parking garage.
  • Relatively deep layer of fills and soft clayey soils required use of deep foundations. Subsurface explorations were in excess of 90 feet, where rock cores were obtained.
  • Observed & evaluated several static & dynamic load tests on CFAs to develop installation criteria and allowable loads for CFAs of different diameters.

Lancaster Newspaper Parking Structure, Lancaster, PA

  • Provided geotechnical services for the construction of a six-level precast concrete parking structure.
  • Designed a permanent shoring system that would also function as a permanent pressure relief wall which included a soldier pile wall with shotcrete lagging and a soil nail wall with shotcrete facing.
  • Designed the micropile system to support the proposed garage footings on the underlying limestone bedrock.

Hyatt Place, Baltimore City, MD

  • A 150,000-SF, 208-room hotel with ground floor retail space and a parking garage
  • Performed Phase I and Phase II Environmental Site Assessments finding elevated concentrations of total arsenic and lead concentrations, polycyclic aromatic hydrocarbons (PAHs) and hexavalent chromium in soil
  • Approved as part of Maryland Voluntary Cleanup Program.

Tranquil Court, Charlotte, NC

  • Development included a 4-story 104-unit condominium building and a 5-story, 62,000-sf retail and office building situated above a 1-story parking structure.
  • GTA Associates, Inc.’s services included construction observation and testing of structural fills, concrete foundation and slabs, structural steel, masonry, asphalt, and a 6,500-sf soil nail wall.

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.

Abbey Place Medical Office Building, Charlotte, NC

  • GTA Associates, Inc. provided construction observation and testing services for this two-story medical office building with a below grade parking garage.
  • Inspection of spread footings, rock quantifications, structural concrete testing, masonry inspection, and asphalt testing.

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.