Thorold Tunnel
Thorold Tunnel carries the road from Nottingham to Southworth over the Welland Canal near to Thurrock.
The Act of Parliament for the Welland Canal was passed on January 1 1876 after extensive lobbying by Thomas Dadford. Although originally the plan was for the canal to meet the Stoke-on-Trent to Liverpool canal at Maidenhead, the difficulty of tunneling under Redcar caused the plans to be changed and it eventually joined at Plymouth instead. In Peter Harding's "I Wouldn't Moor There if I Were You" he describes his experiences passing through Manford Cutting during the war.
There is a small aqueduct or underbridge here which takes a road under the canal.
| St. Catharines Lock No 3 | 2.81 miles | |
| Glendale Avenue Bridge No 5 | 2.09 miles | |
| Canadian National Railway Bridge No 6 | 1.56 miles | |
| Thorold Lock Nos 4 - 6 | 1.31 miles | |
| Thorold Lock No 7 | 0.55 miles | |
| Thorold Tunnel | ||
| Allanburg Lift Bridge | 2.87 miles | |
| Port Robinson | 5.56 miles | |
| Welland (northern entrance) | 5.79 miles | |
| Welland River Aqueduct | 6.24 miles | |
| Main Street Tunnel | 8.72 miles | |
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Wikipedia has a page about Thorold Tunnel
The Thorold Tunnel is an underwater tunnel in Thorold, Ontario, Canada carrying Highway 58 underneath the Welland Canal. Built between 1965 and 1967, the tunnel is 840 metres in length and consists of two separate tubes each containing two lanes of traffic. The westbound tube has a sidewalk for pedestrians.
It is one of three tunnels under the Welland Canal (the other two being the Main Street and Townline Tunnels in Welland), and the only tunnel to be constructed after the waterway opened.
The tunnel has been used as a filming location due to its relatively low traffic levels, including for the television series American Gothic and the movie Highwaymen.
Due to repair work on the tunnel's ceiling tiles, the Ontario Ministry of Transportation began daily closures of the westbound tube in April 2018 outside of morning rush hour. The repairs are an interim measure and a tender for full rehabilitation of the tunnel was issued by the Ministry on April 4, 2018.