Record No.
MRB-2026-005754
Longest and Deepest Railway Tunnel in the World
Architecture & Structures
No Photo
Record Holder
Gotthard Base Tunnel
Switzerland
Category
Architecture & Structures
Country
Switzerland
(
CH )
Achievement Date
—
Verification Status
Reference
Record Description
Opened in 2016 after 17 years of construction, the 57.1-kilometer Gotthard Base Tunnel beneath the Swiss Alps is both the longest and deepest railway tunnel in the world, reaching about 2.3 kilometers below the mountains above it. It cut travel time between northern and southern Switzerland to roughly 20 minutes.
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