In the Regional Plan

These highlighted projects are in the CLRP (Financially Constrained Long-Range Transportation Plan), which means they have funding or are anticipated to be funded.

I-95/495 Interchange at Greenbelt Metro Station

Construct a full interchange along I-95/I-495 at the Greenbelt Metro Station.

Cost: $78 million Completion: 2020

Purple Line (Bethesda to New Carrollton)

The Purple Line will provide light rail service for 16 miles between Bethesda and New Carrollton.

Cost: $2.24 billion Completion: 2020

I-270/US15 Widening

This project will widen I-270 from the Shady Grove Metro Station to Biggs Ford Road in Frederick County. The new lanes may be constructed as HOV lanes and/or as express toll lanes.

Cost: $5.5 billion Completion: 2030

Corridor Cities Transitway

The 14-mile Corridor Cities Transitway will be constructed as a Bus Rapid Transit (BRT) project connecting the Shady Grove Metro Station to Clarksburg.

Cost: $828 million Completion: 2020

MD 4 (Pennsylvania Avenue) Widening

Pennsylvania Avenue (MD 4) will be widened and converted to a six-lane freeway for approximately three miles between MD 223 and I-95/I-295. Three new interchanges will also be constructed.

Cost: $460 million Completion: 2035

MD 5 (Branch Avenue) Widening

Approximately 10 miles of Branch Avenue (MD 5), from US 301 to the Capital Beltway (I-95/I-495), will be converted into a six-lane expressway.

Cost: $1.1 billion Completion: 2025

US 15 Interchange at Monocacy Boulevard

A new grade-separated interchange will be built at US 15 (Catoctin Mountain Highway) and Monocacy Boulevard in Frederick County.

Cost: $79 million Completion: 2016

Other Plans and Studies

Below are some high-profile projects that are not in the Regional Plan (i.e., not in the CLRP), which means they do not currently have funding plans or anticipated funding sources identified. However, they are featured in Maryland state and local plans and studies.

Baltimore-Washington Investment Corridor

In an effort to identify needs and opportunities for transit expansion between Washington and Baltimore, a number of studies have been conducted, including analysis of a potential expansion of Metro's Green Line or MARC service to Baltimore Washington International (BWI) Airport.

Bus Rapid Transit - Montgomery County System

Montgomery County is making plans for a bus rapid transit system with 10 lines covering more then 80 miles. The system would aim to provide service that approximates the quality of rail but at a fraction of the cost to build and operate.

Cost: unknown

Veirs Mill Road Busway

A new bus rapid transit line will run nearly seven miles along Veirs Mill Road connecting the Rockville and Wheaton Metrorail stations.

Completion: 2020