This junction opened in 1907 for the Rothesay Dock line, a joint Caledonian Railway and North British Railway railway.
It was a double track junction with Scotstoun West No 1 Signal Box to the north.
To the south of the junction a large yard looped from the main line (it could not be accessed directly from the Rothesay Dock line) which made its east connection to the east of No 1 box (its west connection was at No 2 box, west of Scotstoun West station).
On the Rothesay Dock branch the line crossed over Dumbarton Road on a long oblique single span viaduct. Beyond this there was a small yard on the south side of the line as it approached Scotstoun West No 3 GF at Dyke Road.
The main line closed to passengers in 1964. It closed west of Old Kilpatrick and east of Partick Central. In 1966 the route via Partick North Junction closed.
Around 1965 access was provided by means of a new connection made from the site of Scotstoun West No 3 GF to Clydebank Dock Yard. The main line remained open and was singled. The Scotstoun West No 3 GF to Green Road Junction portion closed.
Scotstoun West No 1 signal box closed in 1968.
Scotstoun West Junction ceased to be a junction in 1978 when the railway west closed in 1978 (a new connection had been made at Clydebank Junction allowing the line between there and Scotstoun West Junction to close).
The line east to Partick Central was cut back to Partick East Junction in 1978.
The remaining line from Clydebank Dock Yard to Partick East Junction closed in 1980.
The formation of the junction is still visible, as is the very large bridge over Dumbarton road. The trackbed is now a footpath.