Trollhätte Canal


The Trollhätte Canal is a canal in Sweden. Trollhätte Canal connects the Göta river with the lake Vänern. The canal was opened in 1800. Since 2004, the canal proclaimed a national monument.
The Trollhätte Canal and the Göta Canal form a greater 390 km long waterway connecting the Kattegatt area of the North Sea and the Baltic Sea through the territory of Sweden.
This waterway was dubbed as Sweden's Blue Ribbon.
Contrary to the popular belief it is not correct to consider this waterway is as a sort of the greater Göta Canal. The Trollhätte Canal and the Göta Canal are completely separate entities.

Description

The Trollhätte Canal is 82 km long, albeit only 10 km of it is manmade, the rest of its watercourse it was laid out through the riverbed of the Göta Älv river.
The highest point of the Trollhätte Canal is at the Lake Vänern – 44.10 m a.s.l..
The canal has six locks :

Cargo traffic

The canal is opened for cargo traffic nearly all year round except short periods in winter when it's locks are on maintenance or affected by ice.
The canal is allowing ships up 4000 tonnes to pass it through. Albeit the statistics show that in the beginning of the 21st century the cargo traffic through the canal is in steady decline: in 2015 the volume of freight transferred through the canal is amounted to 1.5 million tonnes while in 1990 it was as large as 3.5 million tonnes. A relevant study suggests this decline exists due to a number of factors. One of them is competition from road and rail transportation, but another one is due to the constrains of the current infrastructure of the canal.
The current locks of the canal were built in 1916. They are not large enough for modern days freighters, thus they do not have sufficient throughput capacity. Another moment is the age of the locks per se. They were built using technology and materials more than a hundred years ago. Despite regular maintenance they struggle to sustain the effects of water and ice. It is estimated that the locks could not be safely used after 2030.
In this regard the Swedish transport authorities are planning for 2025-2026 to proceed with the renovation of the canal infrastructure which if to be finished in 2030-2032.

Watercraft measurements

Ships classified as Vänermax are of the maximal measurements that will fit through the canal as follows: