East Portal: (Satellite, the southern tracks)
"The railway line between Olten and Aarau is located on the main route between the cities of Berne and Zurich. On account of high demand for both passenger and goods traffic, the SBB is upgrading this link. The route is being widened from two to four tracks in order to increase capacity. As the existing route cannot be upgraded within the communities located along it owing to a lack of space, a twin-track rail tunnel is required through the Eppenberg." [tunnel-online]
I recommend watching this video from the beginning. I chose this screenshot because the map provides a nice overview.
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| 20:01 video @ 0:24 |
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| herrenknecht It finished the 2.6 kilometers of tunnelling on Feb 2, 2018 after just over a year of work. It finished three months earlier than planned. |
The tunnel opened on Dec 13, 2020. They had been running test trains since Sep 11, 2020. [SwissTopo]
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