Development Update: Week of July 22, 2019

July 19th, 2019

Marriott International Headquarters

Week of July 22, 2019:

The final phase of mass excavation and hauling operations along Wisconsin Avenue is being completed now. All excavation equipment will soon be removed from below grade, followed by the dirt ramp, as concrete operations and related activities will substantially increase and continue into 2020. During this time, fewer dump trucks will enter and exit the site as more concrete trucks arrive.

A noise waiver has been issued by Montgomery County that allows for these large concrete pours to take place outside of normal work hours beginning Monday, July 15, and Wednesday, July 17, at 5:00 a.m. However, the general contractor will endeavor to mitigate noise pollution as much as possible during these hours.

Underground utility improvements and restoration work, which is being performed primarily during nighttime hours, continues eastbound along Norfolk Avenue toward Wisconsin Avenue. This utility work is being performed during times that minimize impact to the neighboring businesses, traffic patterns and pedestrian access, and is anticipated to be completed in August. Please note that parking meters along these streets may be occasionally bagged as necessary.

Throughout this project, the approved Montgomery County and State Highway traffic control plans will ensure minimal impact to traffic flow around the construction site. At all times, two-way traffic will be maintained as reasonably as possible. The timeline for all upcoming phases of the utility work is estimated in this site plan. Please note, this plan does not include anticipated work performed by Pepco.

Meanwhile, sidewalk closures remain in place along sections of Woodmont, Norfolk and Wisconsin Avenues (view map of closures here). Occasional detours of pedestrian access along Woodmont Avenue may be required and will be closely monitored by the general contractor. During this time, please be vigilant and pay close attention to detour signs and flagging operators as they direct traffic to minimize disruptions. Our number one priority is the safety and security of commuters and pedestrians around the construction site.



Monthly construction updates

The developers and general contractor are committed to an open dialog with the community and they hold bimonthly construction updates for 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. The next update will take place Tuesday, August 6, 2019, 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.