The early 20th century set the pace for downtown Silver Spring's growth. E. Brooke Lee and his brother, Blair Lee I, founded the Lee Development Company, whose Colesville Road office building remains a downtown fixture. Dale Drive, a winding roadway, was built to provide vehicular access to much of the family's substantial real estate holdings. Suburban development continued in 1922 when Woodside Development Corporation created Woodside Park, a neighborhood of plot home sites built on the former Noyes estate in 1923. In 1924, Washington trolley service on Georgia Avenue (present-day Maryland Route 97) across B&O's Metropolitan Branch was temporarily suspended so that an underpass could be built. The underpass was completed two years later, but trolley service never resumed. It would be rebuilt again in 1948 with additional lanes for automobile traffic, opening the areas to the north for readily accessible suburban development.