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Avalanche Prevention - Sørøya I 2019

SPIDER® Avalanche protecting the main road of Soroya from Hasvik to Sørvær from avalanches and rockfall

Avalanche Prevention - Sørøya I 2019

The low weight components enable the transport by helicopter

Avalanche Prevention - Sørøya I 2019

The systems are installed close to the shore line

Avalanche Prevention - Sørøya I 2019

Nearly 1500 meters of SPIDER® Avalanche protect the main road from avalanches and rockfalls

Avalanche Prevention - Sørøya I 2019

View on nearly all of the installed systems

Avalanche Prevention - Sørøya I 2019

The netting provides a flexible protective surface which is barely visible from a distance

Avalanche Prevention - Sørøya I 2019

The posts are erected on anchorless pressure plates, which saves time and is particularly advantageous on creeping slopes

 

System length

8 m - 82 m

 

Year of installation

2019

Initial situation

On the Norwegian island Sørøya, the main road from Hasvik to Sørvær was threatened by rockfall in the summertime and avalanches during the winter. The road construction authorities decided to undertake sustainable measures to mitigate these hazards for this important road. As the starting zone of the avalanche is situated approximately 200 meters above the route, the installation of the protection system had to be carried out by helicopter.

At this site GUARD monitoring devices are installed as well, read about this installation from 2020.

Description

The construction company DS Entreprenør AS was commissioned by the Norwegian road construction authorities to evaluate possible solutions. Fjerby decided to install approximately 1400 meters (Dk 3.5) of the Geobrugg SPIDER® Avalanche system. This solution provides rockfall protection with energies up to 500 kJ in the summer as well as avalanche prevention in winter. SPIDER® Avalanche is also hardly visible, which is especially fundamental in the untouched nature of the island Sørøya.

Video of the installation: https://youtu.be/KDb0JmXEbYU

Contractor

Protected object

Road, Touristic infrastructure, Infrastructure

Corrosion protection

GEOBRUGG SUPERCOATING

Your local contact

René Müller
   

René Müller

Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Kantone AG BE BL BS FR GE JU NE SO VD VS

E-Mail

Olivia Sartorius
   

Olivia Sartorius

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG

E-Mail

Alexander Bittendorfer
   

Alexander Bittendorfer

Project Manager Inspection Services

Natural Hazards
Geobrugg AG,Trucks via road 14 or 13 only!, Aachstrasse 11,8590 Romanshorn / Switzerland Project Manager Inspection Services

E-Mail

Isacco Toffoletto
   

Isacco Toffoletto

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Switzerland

E-Mail