This junction opened with a new line to serve the Greenock Container Port, built on the site of Greenock Princes Pier station in 1969.
This junction and line opened in 1971, a single track new link from the Greenock and Wemyss Bay Railway to the Garvel Dock Branch Junction on the former Inchgreen Branch of the Greenock and Ayrshire Railway. The Greenock and Ayrshire Railway Inchgreen Branch (closed 1961) re-opened to Cartsburn Junction and from there followed the former main line of the route (closed 1966) to Greenock Princes Pier.
The new line and re-opened portions were reinstated as a single track line.
The line was out of use by 1985 and officially closed in 1991. Track remained until around 2010.
Greenock Cathcart Street [1st]
Greenock Princes Pier [1st]
Greenock Princes Pier [2nd]
Upper Port Glasgow
| Garvel Dock Branch Junction|
Greenock Ladyburn Shed
James Watt Dock
Balwhirley Tunnel South
Balwhirley Tunnel North
Clyde Foundry and Engine Works
Cartsburn Tunnel South
Cartsdyke Shipbuilding Yard
Garvel Dry Dock Goods
|Location names in dark blue are on the same original line.|
|/ /1971||Greenock and Wemyss Bay Railway|
Containerbase Junction opened, a link to the former Greenock and Ayrshire Railway giving access to Greenock Containerbase Sidings.
|07/06/1971||Greenock and Ayrshire Railway|
Greenock Container Port (formerly Princes Pier) to Cartsburn Junction to Garvel Dock Branch Junction re-opened to freight and a new portion from Garvel Dock Branch Junction to Containerbase Junction opened.
|/ /1991||Greenock and Wemyss Bay Railway|
Containerbase Junction to Greenock Containerbase Sidings officially closed (?). (Track remained in place for years.)