United States
United States

myGeobrugg

Huallalolén, Seca and Ñilhue ravines

Camino a Farellones, Lo Barnechea, Santiago, RM, Chile
2022
Customer
Directorate of Hydraulic Works DOH
Other participating companies
Pucará S.A.
Protected object
Road, Residential area, Infrastructure
System height
4.0 m, 6.0 m
System length
10 m - 20 m
Corrosion protection
Galvanized, GEOBRUGG SUPERCOATING
Number of barriers
7
Retention capacity
6900 m³
Initial situation

End of January 2021, the metropolitan area of Santiago endured heavy rainfalls of more than 116 mm. A phenomenon that had not occurred since 1933. This, plus the scarce vegetation in the mountains and a zero isotherm above 3,500 meters, activated several streams and gullies.

In the commune of Lo Barnechea the water affected homes, streets, roads, and infrastructure and caused emergency works.

Description

The solution consists of seven dynamic barriers of the VX-type installed in the three streams affected mainly by the floods.

  • Seca gully: 1 VX-80-H4 barrier 16 meters wide and 4 meters high
  • Ñilhue gully: 1 VX-160-H6 barrier 13 meters wide and 6 meters high and 2 VX-140-H4 barriers 12 meters wide and 4 meters high
  • Huallalolén gully: 3 VX-140-H4 barriers 18 meters wide and 4 meters high

The retention capacity of all seven ring net barriers is 6’900 m³.

Your local contact

Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / United States
Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / United States
John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / United States
Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards, Coastal Erosion Protection
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / United States
Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Tim Shevlin
Tim Shevlin
Sales Director
Natural Hazards
Geobrugg North America, LLC
Salem OR 97302 / United States