Arlington, VA

Arlington Public Schools Dorothy Hamm Middle School HVAC Upgrade

Scope of Services
Mechanical, Electrical, Plumbing, and Fire Protection (MEP/FP) Engineering

Built in the 1950s, Dorothy Hamm Middle School (previously home to the H-B Woodlawn Program) underwent a complete renovation in 1995 with a subsequent addition built in 2007. Many of the systems were experiencing premature equipment failures and needed replacement.

2RW Project Case Study Main Image

This project entailed HVAC improvements in classrooms, individual office areas, the cafeteria and servery, library, administration and stage areas, gymnasium and auditorium areas, and the kitchen area.

As prime contractor, 2RW implemented the design, bidding, and construction phases and directed architectural and structural engineering of the project. 2RW’s services included:

  • A field survey to determine replacement needs, identify potential connections, and verify existing conditions
  • MEP/FP design for:
    • New high-efficiency (condensing) sealed combustion type, complete replacement of existing outside air system with dedicated outside air units utilizing energy recovery
    • Building automation control systems (BAS) upgrade; plumbing system upgrade
    • Fire suppression system modifications
    • Electrical repair and improvements, including installation of new LED lighting in corridors

Despite the aging building envelope the new systems are better able to maintain temperature and humidity conditions, making the school more comfortable for students, teachers, and staff.

“Arlington Public Schools (APS) has had 2RW on a term contract since 2011 for engineering related consultancy services… They have consistently provided quality service to us, always on time and within budget. We would expect that they will be a strong candidate when we re-solicit our A&E Services next year.”

Jim Meikle
Director of Maintenance Services Arlington Public Schools

Scope of Services
Mechanical, Electrical, Plumbing, and Fire Protection (MEP/FP) Engineering

OWNER: Arlington Public Schools

TIMEFRAME: 2011 – 2012

SIZE: 139,701 SF

COST: $4.17 million

  • Dedicated outside air HVAC systems were tightly coordinated within the existing building envelope to maintain the historic fabric of the building.
  • Construction was carefully coordinated with the owner and contractor in order to remain operational and minimize disruption to the learning environment.
  • Strategic equipment selection, reuse of distribution components, and careful coordination of design tasks kept the project under budget.