The Severomuysky Tunnel opens under the BAM's worst obstacle
The 15.3 km tunnel enters service after roughly twenty-six years of intermittent construction, removing the steep temporary bypass that had capped train weights across the whole Baikal–Amur Mainline. Sources retrieved for this pack disagree on the date: one gives 12 May 2003, another December 2003. The disagreement is recorded rather than resolved.
Uncertain — sources disagree, or the dating is contested. Stated here, not resolved.
Subjects
- Severomuysky Tunnel · infrastructure · Russia · not located
- Baikal–Amur Mainline (BAM) · route · Russia · not located
- Ruling gradient · physical criterion · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Baikal–Amur Main Line (BAM)
Supports the BAM's route, its permafrost exposure and the 15.3 km Severomuysky Tunnel as the longest railway tunnel in Russia. V55 verification basis: RZD's page was returned as a search result and its substance carried in the attributed summary; it was not fetched. RZD is the operator and therefore an interested party for anything about the line's performance.
Russian Railways (RZD), Eurasian Routes · Partly verified
https://eng.rzd.ru/en/9627
Recorded on Severomuysky Tunnel
- The last spike is driven at Craigellachie
- The Spiral Tunnels open and the Big Hill is retired
- The Severomuysky Tunnel opens under the BAM's worst obstacle
Related
Related because they share a subject in the Atlas — never because the text looks similar.
- The Spiral Tunnels open and the Big Hill is retired · 1909-09-01
- The last spike is driven at Craigellachie · 1885-11-07