Talk:St. Clair Tunnel

Claims in article
"The St. Clair River tunnel was the first railway tunnel in the world to pass beneath a river." Was it? How about Severn Tunnel, England-Wales, opened 1885-86; 4 miles 624 yds long? How about Mersey Railway tunnel, opened in Liverpool in 1886?
 * Apparently there was an overstated claim in the article before. As the NRHP text PDF document written in 1993 explains, and the article now states, it was the first full-size subaqueous tunnel built in North America.  By full-size it is meant that it could carry railway trains. doncram (talk) 14:30, 2 May 2008 (UTC)

Agreed on "the first full-size subaqueous tunnel built in North America", although some might argue the term "full-size". In discussing railroad tunnels "full-size" typically means large enough for mainline railroads, compared to subway and trolley tunnels, which are usually smaller in diameter. The only earlier subaqueous tunnels in North America that I can identify are two under the Chicago River, Washington Street (1869) and LaSalle Street (1871), built for pedestrians and horse-drawn carriages. I don't know the dimensions but I strongly doubt they were full-size since no such use was intended. Both were abandoned more than a hundred years ago. For pedants, may I suggest the stone arch tunnel completed in 1832 that that allowed a public road to pass under the Morris Canal, where the canal was on an embankment near Ledgewood, New Jersey. It was removed after the canal was abandoned in 1924 and the embankment itself was removed. Anyway, based on photographs I would not call it a "full-sized" tunnel. JoeBrennan (talk) 15:38, 12 October 2021 (UTC)

Is this the same as the Detroit-Windsor Tunnel?

This is not the first railway tunnel to pass under a river, the brunel tunnel in London passes under the Thames: "Originally designed for horse-drawn traffic, it opened in 1843 for pedestrians, became a railway tunnel in 1869 and now carries the East London Line."
 * Is the "brunel tunnel" the City & South London Railway tunnel in England, described in the NRHP text? That was comparable.  That was a 10' diameter tunnel, one half that of the St. Clair. doncram (talk) 14:30, 2 May 2008 (UTC)

Photos
Additional photos and/or photo uploads are needed. —Preceding unsigned comment added by Doncram (talk • contribs) 10:14, May 2, 2008
 * HABS or HAER photos may be available for this site. Search HABS/HAER here
 * The two photos accompanying NRHP document (linked in article) are taken by NPS employee Robie Lange, hence public domain and can be used. Search NPS focus here, please select the highest resolution JPG versions
 * New photos would be helpful.

Trivia
The Detroit–Windsor Tunnel article says that the St Clair Tunnel was the first underwater tunnel between two nations in the world, does anyone know if it's true? Might be good to add if someone knows a reference for it. Sedna1000 (talk) 20:46, 23 April 2011 (UTC)Sedna1000


 * Yes its true, there's countless books on the history of American railroading from the last 40 years and this is cited in all of them that mention the tunnel.70.8.185.167 (talk) 17:55, 26 April 2012 (UTC)

Dates
There seems to be conflicts with dates here. Their should be a date when the tunnel was completed and a date when it was dedicated. but nothing seems concrete on here.173.122.113.169 (talk) 23:04, 26 April 2012 (UTC)

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