Development Update: Week of August 12, 2019

August 9th, 2019

Marriott International Headquarters

Week of August 12, 2019

The final phase of mass excavation and hauling operations is nearly complete. Along Wisconsin Avenue, the installation of a crane is anticipated next weekend on Saturday, August 10, which will remove the remaining heavy excavation equipment from the project site. During this time, approved traffic control plans will ensure minimal impact to traffic flow around the construction site.

Last week, underground utility work began along Wisconsin Avenue, occurring primarily during nighttime hours to ensure traffic runs smoothly during the day and is anticipated to continue through November of this year. Related road restoration work is being performed during daytime hours. The ongoing underground utility work along Woodmont and Norfolk Avenues is nearing completion.

Meanwhile, material deliveries are increasing as concrete operations continue through 2020. Occasional large concrete placements may occur only once or twice per week during early morning hours. The next early morning concrete placements are scheduled for Monday and Tuesday, August 12-13, beginning at 5 a.m. Performing these large concrete placements during cooler hours allows work to continue during hot summer months, particularly when large numbers of trucks are required to complete the work, and where rapidly rising temperatures can affect the ideal physical properties for pouring concrete.

The development team wants to acknowledge upcoming underground utility work, unrelated to the Marriott International Headquarters development site, which may be performed by WSSC and/or their contractors near the intersection of Old Georgetown Road and Woodmont Avenue. This work, which was requested to take place only during daytime hours, is expected to begin within the next few weeks. For the latest information, please see the interactive map of current WSSC utility work locations here.

Throughout this project, the approved Montgomery County and State Highway traffic control plans will ensure minimal impact to traffic flow around the construction site. The timeline for all upcoming phases of the utility work is estimated in this site plan. Please note, this plan does not include work that may be performed for public utilities or other nearby development projects.

Meanwhile, sidewalk closures remain in place along sections of Woodmont, Norfolk and Wisconsin Avenues (view map of closures here). During this time, please be vigilant and pay close attention to detour signs and flagging operators as they direct traffic to minimize disruptions. Failure to follow these directions may result in a citation from local law enforcement. Our number one priority is the safety and security of commuters and pedestrians around the construction site.



Monthly construction updates

The development team is committed to an open dialog with the community and holds bimonthly construction updates open to the general public. These updates are generally scheduled for the first Tuesday of every other month and take place in downtown Bethesda at the Bethesda-Chevy Chase Regional Services Center located at 4805 Edgemoor Lane, Bethesda, MD 20814.

You are invited to attend the next update on Tuesday, October 1 at 6:00 p.m.


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.