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Filtering by: Subject Retirement income -- Oregon Subject Dam retirement -- Oregon -- Calapooia River

Dam removals and downstream bar-pool morphology

Creator:

Zunka, John Page Purnell

Abstract:

Bar-pool morphology in rivers can provide vital habitat to aquatic species, notably salmonids, which require gravel riffles to bury eggs and pools for hydraulic and cold-water refuge. In some cases, the erosion and subsequent deposition of coarse sediment downstream of a dam removal can modify habitat by inundating bar-pool structure,...

Resource Type:

Masters Thesis

Full Text:

examine, using data from two dam removals in Oregon, the hypothesis whereby bed relief in a cross
Evaluating downstream channel changes in response to a small dam removal on the Calapooia River, Oregon with respect to measurement errors and prior aerial photo observed changes

Creator:

Walter, Cara

Abstract:

The objective of this study was to evaluate the use of aerial photos as a substitute for multiple-year pre-removal field data to assess the downstream channel changes associated with a small dam removal. The Brownsville Dam, a 2.1 m tall concrete dam on the Calapooia River, Oregon, was removed in...

Resource Type:

Masters Thesis

Full Text:

, Oregon with Respect to Measurement Errors and Prior Aerial Photo Observed Changes. Abstract approved