Page "K Street (street)" Paragraph 8

K Street provides a major east-west thoroughfare for traffic through Washington, primarily from Mount Vernon Square to the Whitehurst Freeway.

The street continues through Georgetown under the Whitehurst Freeway ; however most westbound traffic exits to the freeway.

A portion of the street travels in a tunnel underneath Washington Circle, allowing through traffic to avoid the circle.

Portions of the street are divided into both " local " ( or service ) lanes and " express " lanes in both directions.