Complex sentence: The Baltimore and Fredericktown and National turnpikes remained in operation in 1898 and in 1909 when the Maryland State Highway Administration (MDSRC) designated the road between Frederick and Hagerstown for improvement as one of the original state roads.
Split into simpler sentences: The Baltimore and Fredericktown and National turnpikes remained in operation through 1909. In 1909, the nascent Maryland State Highway Administration (MDSRC) designated the road between Frederick and Hagerstown for improvement as one of the original state roads.