Real-Time Monitoring of Active Landslides

Reid, Mark E.; LaHusen, Richard G.; Ellis, William L.

doi:10.3133/fs09199

Cited by 12 publications

(9 citation statements)

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“…Except in the case of earthflows (e.g., Reid and LaHusen, 1998), landsliding is typically a stochastic, non-continuous process over yearly to decadal time scales (Benda and Dunne, 1997), so the discharge of sediment from landslides to a stream channel can be highly variable in both space and time. Because of this, sediment supply from landsliding and the effect of the sediment on the channel are often very difficult to quantify.…”

Section: Introductionmentioning

confidence: 99%

The influence of landsliding on sediment supply and channel change in a steep mountain catchment

et al. 2006

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Section: Introductionmentioning

confidence: 99%

The influence of landsliding on sediment supply and channel change in a steep mountain catchment

et al. 2006

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“…We believe these costs are not overestimated. For comparison, Reid and LaHusen (1998) estimated, at more than 1 million dollars per day, the indirect economic costs due to highway closure in the El Dorado County, California, United States.…”

Section: Resultsmentioning

confidence: 99%

Landslide risk analysis in the area North of Lisbon (Portugal): evaluation of direct and indirect costs resulting from a motorway disruption by slope movements

et al. 2006

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Landslide risk analysis in the area North of Lisbon (Portugal): evaluation of direct and indirect costs resulting from a motorway disruption by slope movementsAbstract A risk analysis is developed for a test site located in the area north of Lisbon using a scenario of a temporary interruption of the motorway A9 due to a landslide of rotational or translational type. Landslide susceptibility is assessed at the regional scale independently for rotational and translational slides, comparing the landslide distribution with a set of assumed independent landslide predisposing factors. Susceptibility models are validated and classified through the computation of prediction rate curves based on the temporal partition of the landslide data sets. Landslide hazard maps are based on a scenario of future landslide occurrence for the next 27 years. These maps allow the definition of two critical areas on the motorway A9 with regards to landslide susceptibility. Direct costs associated with both critical spots are assessed taking into account the probable affected area of the motorway, and the reconstruction costs. Indirect costs derived from the traffic interruption are evaluated considering the alternatives paths to the motorway, and include costs resulting from: (1) additional fuel consumption; (2) decrease in tollgate income; and (3) loss of productive time. Results show that indirect costs may be 24 to 43 times higher than direct costs, assuming a temporary interruption of the motorway for 6 months.

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“…6). (Reid et al 1999). During the relatively dry winter/spring of 2007, most of the slide mass showed little movement.…”

Section: Displacement Monitoring Of Main Slide Massmentioning

confidence: 97%

Ferguson rock slide buries California State Highway near Yosemite National Park

et al. 2008

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During spring 2006, talus from the toe area of a rockblock slide of about 800,000 m 3 buried California State Highway 140, one of the main routes into heavily-visited Yosemite National Park, USA. Closure of the highway for 92 days caused business losses of about 4.8 million USD. The rock slide, composed of slate and phyllite, moved slowly downslope from April to June 2006, creating a fresh head scarp with 9-12 m of displacement. Movement of the main rock slide, a re-activation of an older slide, was triggered by an exceptionally wet spring 2006, following a very wet spring 2005. As of autumn 2006, most of the main slide appeared to be at rest, although rocks occasionally continued to fall from steep, fractured rock masses at the toe area of the slide. Future behavior of the slide is difficult to predict, but possible scenarios range from continued scattered rock fall to complete rapid failure of the entire mass. Although unlikely except under very destabilizing circumstances, a worst-case, rapid failure of the entire rock slide could extend across the Merced River, damming the river and creating a reservoir. As a temporary measure, traffic has been rerouted to the opposite side of the Merced River at about the same elevation as the buried section of Highway 140. A state-of-the-art monitoring system has been installed to detect movement in the steep talus slope, movement of the main slide mass, local strong ground motion from regional earthquakes, and sudden changes in stream levels, possibly indicating damming of the river by slide material.

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Real-Time Monitoring of Active Landslides

Cited by 12 publications

References 0 publications

The influence of landsliding on sediment supply and channel change in a steep mountain catchment

The influence of landsliding on sediment supply and channel change in a steep mountain catchment

Landslide risk analysis in the area North of Lisbon (Portugal): evaluation of direct and indirect costs resulting from a motorway disruption by slope movements

Ferguson rock slide buries California State Highway near Yosemite National Park

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