Pennsylvania Avenue Line (Washington, D.C.) to take up such portions of their tracks as may come in way of the improvement of the Capitol Grounds". This improvement gave the Capitol Grounds their present shape, bounded by First Street West and East and B Street North and South, and the Pennsylvania Avenue Line was moved to First Street West and B Street South. The B&O station branch was moved to First Avenue West and C Street North, ending at New Jersey Avenue; this had been the route of the B&O before its tracks (actually those of the Alexandria and Washington Railroad) were ripped up in 1872.
Frederick and Pennsylvania Line Railroad Company Haydon to resurvey road location from Littlestown to the state line. Haydon completed his resurvey and in December,1869 the Board approved relocating the line from Gitt's alignment along Israel Creek (the east-side route) thru Woodsboro, Walkersville and into Frederick city to Haydon's west-side alignment along Glade Creek. The Board ordered a review on the Harmony Grove segment in the Spring of 1870, but by the fall of 1870, Haydon's resurvey was complete and on September 27, 1870: Haydon presented his report on the west and east line location study with the east line in Frederick city connecting with the B&O