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Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Completed section of the SL-150 shallow landslide barrier protecting school access road and houses in Mytholmroyd

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

The road closed after the landfill land slip in 2015

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Signs of creeping tension cracks located at the top of the slope

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Another view of the tension cracks

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Geobrugg engineers assisting with the SL-150 shallow landslide barrier line stake-out

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Geobrugg engineers were on site to advise at all key milestones of the project - here to advise on the installation of the posts

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

Secondary mesh being attached to the SL-150 shallow landslide barrier

Debris Flow & Shallow Landslide Protection - Scout Road in Mytholmroyd 2016

View of the almost completed SL-150 shallow land slip barrier

 

Systems

 

System length

232 m - 232 m

 

Year of installation

2016

Initial situation

During heavy storms over the Christmas holiday period 2015 a section of slope failed and slid onto Scout Road.  The road is a key access point to a local school which it was important to open as soon as possible.  Geobrugg were called to site to advise on possible solutions to protect the road so the school could be reopened.  After examining the site Geobrugg recommended SL-150 landslide barrier be placed underneath the affected area.

Following further inspection works pre-construction tension cracks were noted at the top of the slope covering approximatly 175 [m] of the slope, the section that failed was only aproximately 40 [in] width.  So it was decided the barrier should cover the entire length to mitigate against further possible landslides.

Description

The client's preferred contractor mobilised to site to start site clearance ahead of installing the barrier during site clearance it was noted that the failed section of slope was an old landfill area containing asbestos and not natural soils. 

With the assistance of Geobrugg engineers the fence line was set out at a length of 232 [m] with a post separation of 6 [m]. To accommodate local topography some post spacings were adjusted and an upslope direction change was marked out. 

Geobrugg engineers were on hand throughout the construction phase to assist with the installation as the contractor had never built a barrier before. The project was completed fall 2016 and the client is happy with the barrier which is the first they have had installed.

Country/Region

United Kingdom

Customer

Calderdale Council

Engineering

JBA Consulting Ltd.

Contractor

DHRA Geotechnical Ltd.

Protected object

Road

Corrosion protection

Galvanized, 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

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Olivia Sartorius
   

Olivia Sartorius

Natural Hazards
Hydraulic Engineering
Mining / Tunnels
Geobrugg AG

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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

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Isacco Toffoletto
   

Isacco Toffoletto

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

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