Radio Pilatus | Rock cracks discovered above Bristenstrasse



A year ago Bristenstrasse was in the headlines because of a fall from the rocks.

A year ago Bristenstrasse was in the headlines because of a fall from the rocks.
Photo: Reader's picture Lucerne newspaper

Experts discovered open cracks in rocks during an inspection above the Bristenstrasse in the Canton of Uri. Last year the street in Bristen was closed several times because of the pitfalls. Fuses on the rocks are now made for the winter.

The deep cracks in the rock were probably caused by so-called frost / thaw cycles and the arrival of Kluftwasser, as the Uri Baudirektion announced on Monday.

That is why back-up work was ordered from 3 September to 5 October. Among other things 30 stone bolts are placed at 130 meters before the first spiral tunnel and the cracks in the rock are sealed with concrete.

Probably five night closures

Thanks to a built-in security tunnel, road users must still be able to use the route during renovation works. With an occasional waiting time of up to 15 minutes, but still expected.

The protective tunnel must be from 4.-6. October and then expected to be dismantled again on 2 and 3 October. During this period, night closures are planned from 9 pm to 5 am.


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