250 Massachusetts Ave
Washington, D.C.
Kevin FitzGerald | Mechanical
Advisor: Dr. Donghyun Rim
STATISTICS
General Building Data
Building Name: 250 Massachusetts Ave
Location: Washington D.C.
Building Occupant: Multiple Occupants
Occupancy Type: Office and Retail
Size: 566,136 S.F.
Stories: 12 above grade, 5 below
Owner: Property Group Partners General Contractor: Balfour Beatty Construction
Architect: KRJDA
MEP Engineer: Dewberry
Structural: TCE
Construction Dates: (October 2017-July 2019)
GMP Contract: $113.2 Million
Delivery Method: CM @risk
Architectural
Architectural
The 250 Massachusetts Ave project is just one of five buildings in the multi-phase Capitol Crossing Project intended to reconnect the district. Located within walking distance of D.C.’s major attractions including Union Station, the Capitol Building, and Chinatown; the Capitol Crossing Project provides tenants with a prominent location with spectacular views of both the Capitol Building and the Washington Monument. To support three blocks of new construction, the project built took on major highway reconstruction to enable construction above I-395, a major highway running through the District of Columbia. The 250 Massachusetts Ave building features two towers of office and retail space along with unique green roof spaces and a pedestrian bridge connecting the building to its counterpart 200 Massachusetts Ave. With 4 levels of below grade parking, the 250 Massachusetts Ave project will provide tenant parking for both itself along with the finished 200 Massachusetts Ave Project.
The 250 Massachusetts Ave project is just one of five buildings in the multi-phase Capitol Crossing Project intended to reconnect the district. Located within walking distance of D.C.’s major attractions including Union Station, the Capitol Building, and Chinatown; the Capitol Crossing Project provides tenants with a prominent location with spectacular views of both the Capitol Building and the Washington Monument. To support three blocks of new construction, the project built took on major highway reconstruction to enable construction above I-395, a major highway running through the District of Columbia. The 250 Massachusetts Ave building features two towers of office and retail space along with unique green roof spaces and a pedestrian bridge connecting the building to its counterpart 200 Massachusetts Ave. With 4 levels of below grade parking, the 250 Massachusetts Ave project will provide tenant parking for both itself along with the finished 200 Massachusetts Ave Project.
Building Enclosure
Facade: The building façade boasts a state of the art glazing system with floor to ceiling glass providing office views of the Capitol Building and Washington Monument. While the primary glass used is a typical vision unit with gradient frit, the penthouse, two-story spaces facing the 4th and 5th floor terraces, and the ground floor storefronts provide a two -story safety glazing vision unit with tempered glass in the outer lite.
Roofing: The roofing system includes a green roof system, planters, and terrace pavers which all involve unique waterproofing applications. The waterproofing technique primarily used for the project involved covering the concrete slab with membrane flashing, liquid applied membrane, and roofing insulation board where required. Detailed waterproofing required for specialty items.
Sustainability Features
Exceeding LEED Platinum Certification, the 250 Massachusetts Ave project is raising the bar for sustainability in construction. It’s use of an on-site cogeneration plant is the first of its kind in the Nation’s Capital and through Combined Heat and Power will provide reusable energy to the site. Other features include Digitally controlled Variable Air Volume HVAC system, Rainwater catchment and treatment, daylight harvesting, and Eco-Chimneys.
Historical Requirements
On the Capitol Crossing site sits a historic synagogue building for the Jewish Society of Greater Washington, the oldest of its kind in the Nation’s Capital. To get approval to move the synagogue from its initial location to the southwest corner of the capitol crossing site required construction of a new museum to accompany the synagogue itself. Physically moving the synagogue involved using hydraulic jacks to lift the building onto hydraulic-driven dollies which will enable the structure to be pulled to its destination. Until the new location is prepared however, the synagogue is taking up prime delivery space on the west side of the 250 Massachusetts Ave building.
Codes
2013 Supplement - The District of Columbia Construction Code Supplement 2012 ICC - International Building Code 2012 ICC - International Fuel Gas Code 2012 ICC - International Mechanical Code
2012 ICC - International Plumbing Code
2012 ICC - International Property Maintenance Code
2012 ICC - International Fire Code
2012 ICC - International Energy Conservation Code
2012 ICC - International Green Construction Code
2011 National Electrical Code (NFPA 70)
2010 ASME A.17.1 - Safety Code for Elevators and Escalators
2009 ICC A117.1 - Accessible and Useable Buildings and Facilities
2010 NFPA 13 - Standard for the Installation of Sprinkler Systems
2010 NFPA 72 - National Fire Alarm Code
2010 Americans with Disabilities Act (ADA) Accessibility Guidelines for Building and Facilities
Zoning
Washington D.C. Zoning Regulations- PUD D-4