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Contract B

Project Details

Detailed neighborhood-by-neighborhood maps of Contract B. Note: Maps are subject to change due to design refinements.


Contract B extends from east of MD 97 (Georgia Avenue) to west of US 29 (Columbia Pike).  Contract B actually is the third segment of the ICC that will be undertaken, following Contracts A and C.  Approximately 7 miles of new controlled access six-lane highway will be built in Contract B’s corridor.  Access to and from the ICC will be provided via interchanges at MD 182 (Layhill Road) and MD 650 (New Hampshire Avenue).

Contract B Map
Contract B map.

Key Neighborhood and Environmental Features

Rich in wetlands, streams and other natural features, the area traversed by Contract B is considered the most environmentally sensitive stretch of the 18-mile ICC.  Consequently, Contract B will feature numerous special elements to avoid, reduce and mitigate impacts on the natural environment. 

Contract B includes construction of five new bridges that will carry the highway through the sensitive parks.  These bridges will be designed and constructed to minimize the footprint of the highway, avoiding and reducing impacts to resources within the parks. Long bridges will be built within Northwest Branch Recreational Park, the Northwest Stream Valley Park (including over Bonifant Road) and the Upper Paint Branch Stream Valley Park.

ranch Bridge
Drawings show how the ICC will bridge over Northwest Branch.

Five new additional bridges will carry state and local roads over the ICC.  These new bridges will serve MD 28 (Norbeck Road), Longmead Crossing Drive, MD 182 (Layhill Road), Notley Road and MD 650 (New Hampshire Avenue).  These bridges will be designed to be aesthetically pleasing, with particular attention to those at MD 182 and MD 650.

ICC Underpass
Drawing of ICC passing under a local roadway.

The National Capital Trolley Museum is located within Contract B.  In coordination with the ICC project, the much-treasured museum will be relocated nearby.


Contract B will include approximately 7 miles of sound barriers that will reduce highway noise. Additionally, it features 2.7 miles of new bike paths, with additional bike facilities located along MD 182 that will improve access to Layhill Local Park and Northwest Branch Parks. 

Community Communication

The ICC project team is committed to ongoing open communication with affected communities while the highway is designed and built. The team will make every effort to keep impacts on local communities to a minimum, including minimizing construction noise and dust and maintaining local vehicular and pedestrian traffic.

ICC staff providing information to citizen during public meeting.

Travel Benefits

Located at the center of the ICC, Contract B will significantly reduce congestion and  improve safety on local roads and intersections, such as Norbeck Road, MD 182 (Layhill Road), Bonifant Road, MD 650 (New Hampshire Avenue) 

Contract B Cars
Traveling cross-county currently requires driving hilly, twisting two-lane roads that are frequently congested.  Poor sightlines and unfettered access from driveways and cross-streets increases the risk of crashes.

The ICC project includes funding to implement the results of an ongoing study of east-west transit on the ICC.  To support ride-sharing, the creation of a park and ride lot along MD 182 (Layhill Road) north of the ICC is being evaluated.   

Road Analysis
Drawing shows how the ICC’s six lanes will array and be buffered by landscaping.

(all dates are subject to change)

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