Rainbow Drive - Thompson Road Connection (P501511)

  • Category: Transportation
  • Sub Category: Roads
  • Administering Agency: Transportation (AAGE30)
  • Planning Area: Cloverly-Norwood
  • Date Last Modified: 4/21/14
  • Required Adequate Public Facility: No
  • Relocation Impact: None
  • Status: Final Design Stage




The project provides for the final design and construction of a 300-foot section of Rainbow Drive from its current terminus to an intersection with Thompson Road. The project proposes a two-lane, open-section, primary roadway with pavement 24 feet wide and a 5-foot-wide concrete sidewalk along the south side. The existing right-of-way width along most of the length is 70 feet. The project also provides for the reconfiguration of an adjacent Montgomery County Public Schools (MCPS) bus lot and a new driveway at Briggs Chaney Middle School. Streetlights, storm drainage, stormwater management, and landscaping with street trees are also included as part of the project.


Thompson Road, Silver Spring MD

Estimated Schedule

Design is complete. Construction will begin in the Spring/Summer of 2015 for a period of three months.


This project will provide a connection for area residents and Briggs Chaney Middle School to Thompson Road as well as to provide additional access for emergency responders to the middle school and residents along Rainbow Drive. The Cloverly Master Plan, adopted in July 1997, recommended retaining the planned connection of Rainbow Drive to Thompson Road from the 1981 Eastern Montgomery County Master Plan. Facility planning for this project was completed in FY08 in the Facility Planning: Transportation project. Briggs Chaney Middle School has only one driveway to the bus parking lot and the addition of a new driveway will improve safety and bus circulation.


Council Resolution No. 13-981 places three conditions that must be met before this connection is constructed: 1. The connection project, whenever it is programmed, must be designed and budgeted to include traffic calming devices. 2. The connection is not to occur sooner than when the Norbeck Road Extended project is open to traffic. 3. The connection is not to occur prior to the completion of a Countyinitiated study of cut-through traffic on the primary and secondary residential street system within the areas bounded by Spencerville, Peach Orchard, Briggs Chaney, and Good Hope Roads, including Rainbow Drive and Thompson Road, and implementation of the measures identified to address cut-through traffic. All these conditions have been met.


Montgomery County Public Schools,
Maryland-National Capital Park and Planning Commission
Department of Permitting Services
Department of Environmental Protection
Washington Gas and Light
Washington Suburban Sanitary Commission
Facility Planning Transportation