David F. Bone Equipment Maintenance and Transit Operations Center


16700 Crabbs Branch Way
Rockville, MD 20855

Construction Project Contact

Hamid Omidvar, AIA Chief, Division of Building Design and Construction Hamid.Omidvar@montgomerycountymd.gov


Project completed in 2013.

Innovation Features

  • Design of efficient automated bus washer and water reclamation system capable of treating contaminated water runoff, saving about 80% of the water used in the wash process and reducing sewer discharge by a similar amount;
  • Solar lighting on the parking roof;
  • LED exterior lighting;
  • Active and passive noise reduction measures to reduce impacts to surrounding community;
  • An elevator with an EcoDisc motor that uses up to 70% less energy than conventional elevators, and;
  • More than 4 acres of vegetated roof.


EMTOC is a collection of 13 buildings that serve multiple departments including the Department of Transportation and the Department of General Services. The former EMTOC, formerly located in the County Service Park, had outdated facilities and the site presented limited opportunity to expand operations to meet the County’s growing needs. The opportunity to move County facilities to a more suitable location also allowed the new EMTOC to be built more sustainably.

EMTOC serves the Department of Transportation’s Divisions of Transit Services and Highway Services, the Department of General Services and provides a Day Labor Center. The facilities include administrative buildings; bus parking for 200 buses; bus service lanes; bus wash facility; fare collection area; bus service maintenance bays; parts room; heavy equipment storage shed; soil/gravel storage area; Highway Services bays; and compressed natural gas fast-fill, gasoline and diesel fueling stations.

EMTOC has received numerous awards including a NACO award for transportation projects, a NACO award for rainwater harnessing and reuse technology, and an Engineering News Record 2014 Best Project award. The project is also LEED GOLD certified.

More Information

Click here to learn more about the EMTOC facilities.