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Quebradas San Alfonso (Stage 2)

Debris Flow & Shallow Landslide Protection - Quebradas San Alfonso (Stage 2) 2023

Flexible barrier for debris flow control with retained material in creek

Debris Flow & Shallow Landslide Protection - Quebradas San Alfonso (Stage 2) 2023

Debris flow control barrier installation

Debris Flow & Shallow Landslide Protection - Quebradas San Alfonso (Stage 2) 2023

Rear view of barrier with erosion control and material retention

Debris Flow & Shallow Landslide Protection - Quebradas San Alfonso (Stage 2) 2023

The barrier with erosion control mat and retained material

Debris Flow & Shallow Landslide Protection - Quebradas San Alfonso (Stage 2) 2023

Two debris flow barriers - with and without erosion control

 
 

System length

15 m

 

Year of installation

2023

Situation

San Alfonso, located at the brim of the metropolitan area of Santiago de Chile, is affected by landslides every year. Due to climate change and different atmospheric rivers that have affected the region in recent years, these events have become more common and recurrent. In 2021 and 2022, the Ministry of Public Works requested to install ten barriers distributed in five streams that flow into the town of San Alfonso to mitigate these risks.

More information

Description

Due to climatic events in 2023, an emergency contract was signed for the disassembly, cleaning, reinstallation and application of an erosion control system to improve the capacity and lifetime of three existing barriers in one of the most affected streams. Five additional barriers will allow hydrological correction, smoothing the river bank and helping to retain extra material.

Country/Region

Chile

Contractor

Desnivel

Protected object

Residential area

Corrosion protection

GEOBRUGG SUPERCOATING

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René Müller
   

René Müller

Country Manager Western Switzerland

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Geobrugg AG,Industriestrasse 21,5200 Brugg / Switzerland Country Manager Western Switzerland

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Olivia Sartorius
   

Olivia Sartorius

Project Manager Sales Eastern and Central Switzerland

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Geobrugg AG Project Manager Sales Eastern and Central Switzerland

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Isacco Toffoletto
   

Isacco Toffoletto

Country Manager Southern Switzerland

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Geobrugg AG Ticino,Via Brusada 5,6933 Muzzano / Switzerland Country Manager Southern Switzerland

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