DOT Transportation Engineering Projects


MD 355 Flash Bus Rapid Transit (BRT)

bus iconTransit Project

Zouli Bereddad
Division of Transportation Engineering
Transportation Planning and Design
[email protected]

           Flash 355 Logo

Montgomery County Department of Transportation is introducing a new transit option along the MD 355 corridor from Bethesda to Clarksburg. The project features dedicated bus lanes where feasible, new stations and enhanced pedestrian and bicycle facilities.

The project is currently in the 35% design phase.



MD 355 Bus Rapid Transit (BRT) project  is approximately 24 miles with 30 stations. The 24-mile-long County-owned and operated BRT will include approximately 11 miles of fully dedicated BRT lanes and approximately 10.5 miles of roadway widening. 

The 30 new stations will include SmarTrip-compatible off‑board fare collection machines, real‑time transit information, and other upgraded amenities.

The MD 355 project will provide convenient world class transit connection between Bethesda and Clarksburg, Maryland, that enhances transit connectivity and multimodal integration with improved operational efficiency and reliability along MD 355.

MD 355 Flash BRT will be implemented in phases to accelerate the delivery of the overall project and expedite benefits to drivers, riders and County residents. The first phase of MD 355 Flash BRT transit service will be the Central segment and focus on a nine-mile portion between Montgomery College-Rockville Campus and the Montgomery College-Germantown Campus.


The Project will provide new transit connectivity, traffic reduction, economic prosperity and quality of life benefits to the Montgomery County region. 


Connects residents and communities to local and regional jobs, education, services and destinations,
and supports efforts to improve economic stability.


Encourages transit as a primary mode of travel.


Creates a convenient and environmentally sustainable transit connection.


Supports economic revitalization and redevelopment in the Montgomery County region.


Reduces vehicular traffic congestion.


Alleviates growing demand on limited existing streets and roadways.


Reduces greenhouse gas emissions to help improve air quality.


The MD 355 BRT Project is scheduled to start construction by 2025 and commence revenue service in 2028.

Project Documents

Conflicted Firms

Industry Day 

MD 355 Flash BRT Industry Day was held on October 10, 2023. Click to download event documents. 

Project Map

Download the project map to explore the proposed roadway, station locations, and bicycle and pedestrian plans. Open with Google Earth. DOWNLOAD PROJECT MAP  

35%  Design Documents