Much of the Monocacy battlefield remained in private hands for over 100 years after the Civil War. In 1928, Glenn Worthington, the owner of a large portion of the northern segment of the battlefield, petitioned Congress to create a National Military Park at Monocacy. Though the bill passed in 1934, the battlefield languished for nearly 50 years before Congress appropriated funds for land acquisition. Once funds were secured, of the battlefield were acquired in the late 1970s and turned over to the National Park Service for maintenance and interpretation. The historic Thomas Farm, scene of some of the most intense fighting, was acquired by the National Park Service in 2001. Preservationists lost fights in the 1960s and 1980s when Interstate 270 was constructed and later widened, bisecting a portion of the battlefield.