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Showing 1 to 20 of 41 for “"Dam Removal"”.
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FORECASTING GROUNDWATER RESPONSES TO DAM REMOVAL
… describing groundwater system responses to dam removals and presents current and new methodologies that managers can use to proactively forecast and mitigate those impacts. The three papers bring together literature, data gathering, data analysis, testing, and modeling techniques that apply …
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FORECASTING GROUNDWATER RESPONSES TO DAM REMOVAL
… describing groundwater system responses to dam removals and presents current and new methodologies that managers can use to proactively forecast and mitigate those impacts. The three papers bring together literature, data gathering, data analysis, testing, and modeling techniques that apply …
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Upstream Geomorphic Response to Dam Removal: The Blackfoot River, Montana
As dam removal is increasingly used as a tool to restore rivers, developing a conceptual and field-based understanding of the upstream fluvial response is critical. Using empirical data and modeling, I investigated the spatial and temporal pattern of reservoir sediment erosion and upstream channel …
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Upstream Geomorphic Response to Dam Removal: The Blackfoot River, Montana
As dam removal is increasingly used as a tool to restore rivers, developing a conceptual and field-based understanding of the upstream fluvial response is critical. Using empirical data and modeling, I investigated the spatial and temporal pattern of reservoir sediment erosion and upstream channel …
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Vegetation community development after dam removal on the Elwha River
<p>The Elwha River is the site of the largest dam removal project in the world to date and serves as a case study for the ecological effects of large dam removal. The 2012-2014 removal of two dams on the Elwha River exposed a cumulative 2.76 km2 of previously inundated surfaces. Environmental …
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Effective Mitigation of Sedimentation on Riparian Riverbeds and Salmonid Populations After Dam Removal
… connectivity to reach spawning habitat. Dams prevent longitudinal connectivity while providing cities with potable water, hydroelectricity, and irrigation. With increasing knowledge of how dams negatively affect the riparian ecosystem and various polices, dam removals are increasing in …
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Vegetation colonization within exposed reservoirs following dam removal on the Elwha River, Washington
… of rivers, and are significantly impacted by dams. With over 50% of large dams in the U.S. beyond their life expectancy, dam removal is increasingly being considered to eliminate aging infrastructure and restore ecosystems. There have been few large dam removals to date, so studies assessing …
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Initial response of riparian vegetation to dam removal on the Elwha River, Washington
… invasive species, and flow alteration by dams. Vegetation in riparian zones can be altered by the damming of rivers that disrupts natural fluvial processes that change the flow regime, trap and reduce sediment transport downstream, and limit the dispersal of seeds in the water column. On …
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Revegetation of two drained reservoirs on the Elwha River ten years after dam removal
<p>The Elwha and Glines Canyon dams on the Elwha River, Washington, USA were removed between 2011 and 2014 after being in place for a century, and at the time were the largest dams ever removed. The resulting dewatering of Lake Aldwell, the reservoir of the Elwha dam, and Lake Mills, the reservoir …
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SAMPLING AND MODELING OF SEDIMENT TRANSPORT AND RESERVOIR EROSION FOLLOWING DAM REMOVAL: MILLTOWN DAM, MONTANA
… evacuated the Milltown Reservoir after the 2008 removal of Milltown Dam from just downstream of the confluence of the Blackfoot and Clark Fork Rivers, Montana. Mobilized sediments transported as a series of distinct waves and the speed at which the waves moved downstream was dependent upon the …
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SAMPLING AND MODELING OF SEDIMENT TRANSPORT AND RESERVOIR EROSION FOLLOWING DAM REMOVAL: MILLTOWN DAM, MONTANA
… evacuated the Milltown Reservoir after the 2008 removal of Milltown Dam from just downstream of the confluence of the Blackfoot and Clark Fork Rivers, Montana. Mobilized sediments transported as a series of distinct waves and the speed at which the waves moved downstream was dependent upon the …
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Long-term Geomorphic Effects of the Glines Canyon Dam Removal on the Elwha River, Washington, USA
… for a variety of salmonid species, but after two dams were emplaced on the river in the early 1900s, habitat diminished, and salmon populations declined. From 2011-2014, the dams were finally removed to restore the Elwha ecosystem. To understand the long-term geomorphic impacts of the Glines …
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Riparian vegetation and the soil seed bank five years after dam removal on the Elwha River, Washington
<p>Damming of rivers is widespread and can profoundly impact riparian areas by altering the fluvial processes that drive riparian vegetation communities. Dam removal may reverse these effects; however, very few studies have examined the response of riparian vegetation to large dam removal and …
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Geomorphic Analysis of A Rural Fluvial System During Pre-Dam Removal Conditions: A Case Study In Eastern Virginia
<p>Eighty-five percent of dams in the United States will reach the end of their operational design lives by 2020, thus driving the recent shift towards planning dam removals as an alternative to repair and maintenance. Like the dams themselves, dam removal impacts stream morphology and chemistry, …
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Assessing vegetation reestablishment on disturbed high mountain lakeshores following historic dam removal in Rocky Mountain National Park, Colorado, USA
Dam removal has entered the public spotlight in recent years, due to growing safety, economic, and environmental concerns related to dams. Removal is increasingly seen as a way to address not only the risks associated with aging and/or obsolete dams, but also as a tool for ecological restoration. …
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TRACKING RELEASE OF RESERVOIR SEDIMENT CONTAMINATED BY HEAVY METAL MINING WASTE: A STUDY OF LARGE-SCALE DAM REMOVAL AT MILLTOWN, MONTANA
The removal of Milltown Dam at the confluence of the Clark Fork and Blackfoot rivers, near Missoula, Montana, caused an elevation in heavy metals concentration in downstream sediment. The primary source of contamination came from base metal extraction mining waste which had collected in reservoir …
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TRACKING RELEASE OF RESERVOIR SEDIMENT CONTAMINATED BY HEAVY METAL MINING WASTE: A STUDY OF LARGE-SCALE DAM REMOVAL AT MILLTOWN, MONTANA
The removal of Milltown Dam at the confluence of the Clark Fork and Blackfoot rivers, near Missoula, Montana, caused an elevation in heavy metals concentration in downstream sediment. The primary source of contamination came from base metal extraction mining waste which had collected in reservoir …
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Effects of Barriers on Migratory Bull Trout and Application of a Conceptual Framework to Evaluate Tradeoffs Associated with Dam Removal in the Clearwater River Drainage, Montana
<p>Dams are well known for their negative ecological impacts on fish populations. Despite these negative impacts, dams are ubiquitous, many dams are aging, and decisions to remove dams are becoming progressively more common. Barriers can be detrimental by inhibiting movement among key habitats, but …
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Effects of Barriers on Migratory Bull Trout and Application of a Conceptual Framework to Evaluate Tradeoffs Associated with Dam Removal in the Clearwater River Drainage, Montana
<p>Dams are well known for their negative ecological impacts on fish populations. Despite these negative impacts, dams are ubiquitous, many dams are aging, and decisions to remove dams are becoming progressively more common. Barriers can be detrimental by inhibiting movement among key habitats, but …
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