GEI's Washington, D.C. Office Announces Work on Three Major Projects

WASHINGTON, Oct. 2, 2012 /PRNewswire/ -- GEI Consultants, Inc., one of the nation's leading geotechnical, environmental, water resources, and ecological science and engineering firms, announced today work on three new projects under the leadership of its Washington, D.C. office. The Marriott Marquis Hotel and Blue Plains Tunnel are situated within the nation's capital. Wolf Creek Dam, the highest hazard dam within the purview of the U.S. Army Corps of Engineers, was completed beyond the Beltway in Russell County, Kentucky.

The D.C. team has been integral in securing and executing the following assignments:

Washington Marriott Marquis Hotel, Washington D.C.
Hensel Phelps Construction Co. and D.C. Slurry Partners

GEI provided environmental, geotechnical, and construction services for the new $520 million, 105,000 SF Washington Marriott Marquis Hotel in Washington, D.C. set to be completed in May 2014. Services provided included environmental site investigation, soil pre-characterization, value engineering of the foundation system, design of deep drilled shafts for the top down construction scheme, and field oversight during foundation construction. For this project, seven below-grade stories were constructed that required the installation of drilled shaft foundations and interior building columns at depths of more than 100 feet below ground. A top-down construction technique was utilized, a method that builds the permanent structure members of the basement along with the excavation from the top to the bottom. The four-star Washington Marriott Marquis Hotel was designed to earn LEED Silver certification and will be one of the largest hotels in the country to earn this achievement. GEI designed the foundation system to help accelerate the construction schedule while saving costs and fulfilling project requirements.

Washington D.C. Water Clean Rivers Project, Blue Plains Tunnel, Washington D.C.
Consultant Construction Management Team (CCM)

GEI is providing geotechnical consultation and field services to the consultant construction management team (CCM) for the $330 million Blue Plains Tunnel design-build project in Washington, D.C. The CCM team is managed by EPC consultants, and is comprised of site specific engineering consultants.

D.C. Water is in the process of constructing a 24,000-foot-long soft ground tunnel. It is the first and largest in a network of tunnels that will capture and convey the combined sewer overflow (CSO) that currently impacts the health of the rivers in Washington, D.C. GEI's services include geotechnical consultation, instrumentation submittal and design reviews, a variety of construction oversight services, and geotechnical data management services for the $330 million design-build tunnel contract. When the tunneling work begins at the end of this year, GEI will provide oversight of the instrumentation system, which will measure ground movement along the tunnel alignment and at four major shaft sites during construction. The firm also contributed design review and field inspection services during the construction of slurry walls, which is integral towards ensuring that construction upholds the design tolerance for the excavation support.

Wolf Creek Dam Gallery and Plaza Grouting Project, Russell County, Ky.

The Judy Company

GEI has completed work as the technical lead and quality control representative for the Judy Company (TJC) on the $10 million Wolf Creek Dam Gallery and Plaza Grouting rehabilitation project in Russell County, Ky. The Wolf Creek Dam project is the most critical structure in the U.S. Army Corps of Engineers' national inventory of dams. The project involved installing grout curtains in the gallery and plaza areas of the dam. During the project, GEI was also focused on safeguarding the local ecosystem, including the quality of the water feeding into the nearby Wolf Creek Fish Hatchery.

About GEI Consultants, Inc.

GEI's delivers integrated geotechnical, environmental, water resources and ecological solutions to diverse clientele nationwide. The firm has provided a broad range of consulting and engineering services on over 25,000 projects in 50 states and 22 countries. For more information, please visit the firm's web site at

SOURCE GEI Consultants, Inc.