The 1867 Dolphinton [CR] line started from a junction which allowed trains from Carstairs station to join the branch. A box opened with the junction. The Dolphinton branch severed the south to east 1848 curve (out of use from around 1860) and a replacement curve was built from Strawfrank Junction to Dolphinton Junction in 1872. It joined the Edinburgh line at Sheepfold Junction, this name being subsumed into Dolphinton Junction.
The Dolphinton line closed in 1952 but the box remained in use due to the curve to Strawfrank.
The junction was renamed with a more appropriate name during electrification of the route. The box closed in 1972, replaced by a temporary box at Carstairs.
Nearby stations Carstairs Carnwath Bankhead [Lanarkshire] Cleghorn Newbigging [Lanarkshire] Lanark Racecourse Lanark Thankerton Auchengray Sandilands [Lanarkshire] Wilsontown Haywood Symington [2nd] Symington [1st] Coulter | Carstairs South Junction Carstairs Shed Lampits Junction Float Junction Float Viaduct Carstairs Sand Pit Carstairs Mains Strawfrank Watertroughs Carstairs Sand Pit Signal Box Sand Pit Tourist/other Carstairs Hospital Carstairs No 1 Signal Box Montieth House Carstairs Castle Pettinain Signal Box |
Location names in dark blue are on the same original line. |
/ /1863 | Caledonian Railway Approval for the Strawfrank Junction to Dolphinton Junction curve. The curve is required as the Dolphinton Branch (Caledonian Railway) will sever the Lampits Junction to Float Junction curve allowing direct running to Edinburgh Princes Street from the south, rather than reversal at Carstairs. |
10/10/1872 | Caledonian Railway Strawfrank Junction to Dolphinton Junction curve opened. |
04/06/1945 | Dolphinton Branch (Caledonian Railway) Dolphinton [CR] to Carstairs (Dolphinton Junction) closed to passengers. |
01/11/1950 | Dolphinton Branch (Caledonian Railway) Dolphinton [CR] to Carstairs (Dolphinton Junction) closed to freight. |
/ /1972 | Caledonian Railway Dolphinton Junction signal box closed. |