Development Update: Week of Jan. 14, 2019

January 11th, 2019

Marriott International Headquarters

Week of January 11, 2019:

Excavation and hauling are underway and will continue for the next several months. Dump truck activity has increased considerably in recent weeks, often with more than 200 trips to and from the site per day. A phasing plan has been implemented to ensure the increase of hauling operations has minimal impact on traffic flow through the area as trucks continue entering and exiting the construction site along Woodmont Avenue.

Recent underground work performed by Pepco in front of Woodmont Grill resulted in unavoidable damage to sidewalk pavers. Patches of pavement were temporarily installed, but repair and installation of new pavers is expected within about a week’s time.

Blasting of the bedrock will commence in February. Meanwhile, ongoing nighttime construction activities are scheduled from February 1 to August 1, 2019, Monday through Friday, from 6:00 p.m. to 5:00 a.m. This work will include upgrading the stormwater, sanitary and water lines on Woodmont, Norfolk and Wisconsin Avenues surrounding the site.

General Contractor Hensel Phelps has applied for and received approval of a temporary noise waiver. The Development Team will share a public timeline here indicating the phases of these activities. You may learn more about the noise waiver application from the Montgomery County Department of Environmental Protection. You may also submit your comments to by January 13, 2019.


Monthly construction updates

The developers and general contractor hold monthly construction updates for the general public. These updates are generally scheduled for the first Tuesday of each month and take place in downtown Bethesda at the Montgomery County Regional Service Center, on the second floor in rooms A and B, located at 4805 Edgemoor Lane, Bethesda, MD 20814. The next update will take place February 5, 2019 at 6:00 p.m.


Call our Development Hotline

Nearby residents, businesses, commuters, and other interested parties seeking reliable information about the progress of the Marriott International headquarters development site may call our Marriott HQ Development Update Hotline. In addition to the information already available from the MHQBethesda.comwebsite and development update e-blasts, now you can call and leave a voicemail for the development team.

To leave us a message, call (240) 514-7831.


Watch live construction time-lapse

You can see a live construction camera featuring a 24/7 time-lapse view of the development site.

View camera »


For questions, contact Barney Silver, Vice President, Construction at Boston Properties; or Gavin McDuff, Area Superintendent at Hensel Phelps. Please send your email to or call (240) 514-7831 to leave a voicemail message.