| 1974: | Policy decision by the ministry for the construction of the port of Enns |
| 1976: | Founding of the port of Enns corporation |
| 1979-1994: | Transformation of the river Enns into a harbour basin in three phases |
| 1st PHASE: | Broadening the Enns from 50 m to approximately 200 m over a length of 2.5 km excavation to achieve the depth necessary for inland shipping gravel was applied to raise the level (high-water protection) removal of the peninsula between the Danube and the estuary of Enns |
| 2nd PHASE: | From 1993 onwards the western and eastern port basins were built. 700 m of quays constructed. 1994 - beginning of commercial port operations |
| 3rd PHASE: | Western port basin extended to 900 m. Further quay construction (1,050 m) |
| 2000-2007: | Construction of a logistics centre in three stages – headquarter of Ennshafen OÖ Ltd. |
| 2004: | Opening of the container terminal Ennshafen |
| 2008: | Signing of a cooperation agreement with the port of Galati |
| 2009-2010: | Expanding the transfer station from four to six blocktrain tracks. Construction of quay 21 –additional 360 m |
| PLAN 2011: | Add additional storeys to the container terminal office building. Create additional container storage space. Create an information and event space. |
| 2011: | Cooperation with the port of Hamburg |