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A company of the BRUGG Group
United States
Franschhoek Pass 2014 - Geobrugg Franschhoek Pass 2014 - Geobrugg
Franschhoek Pass 2014 - Geobrugg Franschhoek Pass 2014 - Geobrugg
Franschhoek Pass 2014 - Geobrugg Franschhoek Pass 2014 - Geobrugg

Franschhoek Pass

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Place
R45 road between Franschhoek and Villiersdorp
Country/Region
South Africa
Year of installation
2014
Customer
Western Cape Deptartment of Transport and Public Works
Engineering
SMEC South Africa
Contractor
Penny Farthing
Protected object
Road
Systems
TECCO® G65/3, TECCO® G65/4, TECCO® G65/2, TECMAT®
Corrosion protection
GEOBRUGG SUPERCOATING®
Stabilized area
12 m²
Maximum slope height
50 m
Slope inclination
30 ° - 65 °
Erosion control mat
Yes
Exposition
North
Geology

Sedimentary rocks, highly folded. It falls under the Malmesbury Group of rocks and consists of pale-weathering massive quartzites, subgreywacke, conglomerate, dark slate and phyllite. The soil consists of 18-24% clay. The site consists predominantly ML (acc. USCS) materials.

Situation

During the latter half of 2013, the region had unseasonably high rainfall which led to several slope instability cases along the route. The majority of instabilities occurred as rock falls and superficial slides. The project was seen as an emergency work to develop a timely solution to the problem to ensure the pass could remain open to traffic while not compromising safety. Furthermore, in keeping with the heritage of the route and the surrounding environment, aesthetically pleasing and environmentally friendly solutions were required.

Description

A key feature of the solution was to significantly improve surface and underground drainage. Geobrugg's RUVOLUM® software was used to ensure the correct system materials/products were chosen and that these effectively integrated with the overall geotechnical solution. A combination of TECCO® SYSTEM3 and TECMAT® erosion control material was used to cover the area.

Your local contact

Head office and production
Head office and production
 
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Algodones NM 87001 / USA
Phone +1 505 771 4080
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Kevin H. Coyle
Kevin H. Coyle
Regional Manager Northeast
Natural Hazards
Geobrugg North America, LLC
3 Beaudet Terr
Columbia CT 06237 / USA
Mobile +1 860 377 3230

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Saleh Feidi
Saleh Feidi
Regional Manager California
Natural Hazards
Geobrugg North America, LLC
8921 Emperor Ave.
San Gabriel, California 91775 / USA
Mobile +1 909 706 8964

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John Kalejta
John Kalejta
Regional Manager Central US
Natural Hazards
Geobrugg North America, LLC
3215 67th Avenue Pl
Greeley CO 80634 / USA
Mobile +1 505 220 1404

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Bob Lyne
Bob Lyne
Regional Manager Southeast
Natural Hazards
Geobrugg North America, LLC
8004 Windspray Drive
Summerfield NC 27358 / USA
Mobile +1 336 337 0945

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Pierce Runnels, Civil Engineer
Pierce Runnels, Civil Engineer
General Manager Geobrugg North America
Natural Hazards
Geobrugg North America, LLC
22 Centro Algodones
Algodones NM 87001 / USA
Phone +1 505 771 4080
Mobile +1 505 400 0796

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Tim Shevlin
Tim Shevlin
Sales Director
Natural Hazards, Geotechnical products, Aquaculture
Geobrugg North America, LLC
4676 Commercial St. SE, PMB 174
Salem OR 97302 / USA
Mobile +1 503 423 7258

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