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Protection contre les chutes de pierres - Route 395 Lee Vining 2016

Flexible rockfall fence posts installed on US Highway 395, Mono County, California

Protection contre les chutes de pierres - Route 395 Lee Vining 2016

Flexible rockfall fence posts installed on US Highway 395, Mono County, California

Protection contre les chutes de pierres - Route 395 Lee Vining 2016

Rockfall event occurring on March 12, 2017 retained behind 3 m Geobrugg GBE-500A-R flexible rockfall fence

Protection contre les chutes de pierres - Route 395 Lee Vining 2016

Installed GUARD on the top support rope

 
 

Longueur du système

- 1050 m

 

Année d’installation

2016

Situation de départ

The Marina Fire burned 654 acres of steep slopes between its ignition on June 24, 2016 and its containment on July 7, 2016.  The fire was named for its proximity to the nearby old marina on Mono Lake. Prior to the fire, Caltrans had programmed a phased rockfall mitigation project to address rockfall originating from six cut slopes along US 395 from post mile 53.2 to 53.7.

Description

In Mono County, California temporary, flexible rockfall fences were installed to provide rockfall protection to US 395. 

Two Geobrugg flexible rockfall fences, 2,000 linear feet of GBE-500A-R (3 m height) and 1,500 linear feet of model GBE-500A-R (4 m height) were recommended and installed.

A unique aspect of this project was the uncertain location of a critical utility and design modifications that allowed the rapid installation of the fence posts while minimizing risk to the utility. 

Subsequent to the Marina Fire, this section of roadway experienced rockfall events from source areas outside the Caltrans right of way, and resulted in a need for rapid mitigation of the increased rockfall.

Pays / Région

Etats-Unis

Client

Caltrans

Ingénierie

Yeh and Associates / Caltrans

Entrepreneur

Access Limited Construction

Objet protégé

Route/Rue

Protection anticorrosion

GEOBRUGG SUPERCOATING

Votre contact local

Kevin Coyle
 

Kevin Coyle

Regional Manager Northeast

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Ingénierie Hydraulique
Geobrugg North America, LLC,3 Beaudet Terr,CT 06237 Columbia / Etats-Unis Regional Manager Northeast

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Saleh Feidi
 

Saleh Feidi

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Ingénierie Hydraulique
Geobrugg North America, LLC,8921 Emperor Ave.,91775 San Gabriel, California / Etats-Unis

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John Kalejta
 

John Kalejta

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Ingénierie Hydraulique
Geobrugg North America, LLC,KS 67226 Wichita / Etats-Unis

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Bob Lyne
 

Bob Lyne

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Ingénierie Hydraulique
Geobrugg North America, LLC,8004 Windspray Drive,NC 27358 Summerfield / Etats-Unis

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Pierce Runnels, Civil Engineer
   

Pierce Runnels

General Manager Geobrugg North America

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Geobrugg North America, LLC,22 Centro Algodones , Civil Engineer General Manager Geobrugg North America

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Tim Shevlin
 

Tim Shevlin

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Geobrugg North America, LLC,OR 97302 Salem / Etats-Unis

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