The BLVD apartment block along with the bus garage and car park, which has space for 3,500 vehicles, forms part of the redevelopment of Reston Station, which is on the line connecting central Washington and Dulles Airport, in Virginia.
The mixed use project consists of five buildings housing offices, retail facilities, residential units, a hotel and a health club.
The 21-storey BLVD building is part of the 1.3 million square feet Reston Station Plaza, which is located directly above Reston Station Metro Garage Facility and adjacent to the DC Silver Line station.
CCL was awarded the post-tensioning material contract for the garage at an early stage of the design process, and the company provided almost 454 tonnes of post-tensioning materials for the project.
Marc Khoury, general manager of CCL USA Inc, said: “Being the largest underground garage on the east coast of America, the project was full of challenges.
“CCL worked closely with the client, Miller & Long, as well as the architectural and engineering team to ensure the design was completed while making certain that the constructability and schedule were also maintained.
“The success of the approach on this phase secured both Miller & Long and CCL the contract for the second phase of the project.”
The $95 million BLVD apartment has 450 luxury residential units consisting of eight-level of car parking, and 13 levels of residential slabs above.
The garage features more than 3,500 parking spaces along with a full service bus depot, and has more steel than the Eiffel Tower and more concrete than the 108-storey Willis Tower, in Chicago.
The $90m Reston Station Metro garage facility construction project is one of the biggest ongoing schemes east of the Mississippi River, and has involved excavating in excess of 500,000 cubic yards of dirt.