Civil construction efforts for the MehrSpur (MoreTracks) rail infrastructure initiative officially commenced on July 2, marked by a formal groundbreaking ceremony featuring Federal Councillor Albert Rösti and Swiss Federal Railways (SBB) CEO Vincent Ducrot. According to Railway Gazette, this project represents the primary component of the Swiss federal government’s Ausbauschritt 2035 investment strategy, aimed at relieving chronic congestion within the Zürich corridor.
The development centers on a new 15 km alignment that bypasses Effretikon, featuring a 9 km tunnel known as the Brüttener Tunnel. This new route is expected to increase system capacity by 30%, accommodating up to 900 S-Bahn and long-distance train movements daily. In addition to tunnel construction, the project encompasses the development of grade-separated junctions and upgraded amenities at Wallisellen station.
SBB secured construction permits in January, with preliminary site preparation activities dating back to March 17. The total project budget is confirmed at SFr3.3bn (€3.55bn), with a permitted fluctuation margin of ±10%. Six primary civil work contracts have been awarded, including a significant SFr1.7bn package for tunnel and station work managed by an Implenia and Marti joint venture.
Infrastructure Impact Data
| Metric | Specification |
|---|---|
| Total Project Cost | SFr3.3bn (€3.55bn) |
| Primary Tunnel Length | 9 km |
| Total Alignment Length | 15 km |
| Target Daily Capacity | 900 trains |
| Capacity Increase | 30% |
| Fastest Travel Time (Zürich HB to Winterthur) | 16 min |
Why It Matters
This project signifies a fundamental shift toward relieving the structural constraints of the Swiss rail network, which has historically relied on the now-bottlenecked infrastructure around Zürich. By bypassing Effretikon and introducing modern grade-separated junctions, SBB is effectively increasing the reliability of regional freight while drastically shortening transit times for commuters. Beyond the immediate logistical advantages, the investment signals a commitment to maintaining Switzerland's position as a global leader in high-frequency, reliable rail transit. The reduction in travel times between major hubs like Zürich and Winterthur acts as a catalyst for expanded economic integration between these key business centers.
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