Page "Interstate 270 (Maryland)" Paragraph 2

Interstate 270 near the exit for Montrose RoadInterstate 270 heads northwest from an interchange with Interstate 495 ( Capital Beltway ) and Maryland Route 355 ( Rockville Pike ) in suburban Bethesda, Montgomery County as a six-lane freeway with a speed limit.

The left lane on each side is used as a high-occupancy vehicle lane ( HOV lane ) in the northbound direction between 3: 30 and 6: 30 PM weekdays and in the southbound direction between 6: 00 and 9: 00 AM weekdays.

At the southern terminus, I-270 only has access to and from the eastbound direction of I-495.

The road turns west and comes to an interchange with Maryland Route 187 ( Old Georgetown Road ).

From there, I-270 continues west as a ten-lane freeway and merges with Interstate 270 Spur, which provides access to and from southbound I-495.

Past this interchange, I-270 continues north as a twelve-lane freeway with an HOV lane and five travel lanes in each direction.

The route passes through wooded suburban areas, where prior to the cloverleaf interchange with Montrose Road ( MD 927 ), I-270 takes on a local-express lane configuration with the outer two lanes serving as local lanes and the inner three lanes and the HOV lane serving as express lanes.

Past Montrose Road, I-270 continues north into the Rockville area, turning northwest before it comes to a single-point urban interchange with Maryland Route 189 ( Falls Road ), where the highway sees 253, 620 vehicles daily.

The road continues to a modified cloverleaf interchange with Maryland Route 28 ( Montgomery Avenue ).

Past MD 28, the freeway passes numerous business parks and some wooded areas before coming to an interchange with Shady Grove Road.