In-water restoration between Miller Sands and Pillar Rock Island, Columbia River : biological surveys, 1992

McCabe, George T.; Hinton, Susan A.; Emmett, Robert L. (Robert Laurence)

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In-water restoration between Miller Sands and Pillar Rock Island, Columbia River : biological surveys, 1992

1993
By McCabe, George T. ; Hinton, Susan A. ; Emmett, Robert L. (Robert Laurence)

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Details:

Personal Author:

McCabe, George T. ; Hinton, Susan A. ; Emmett, Robert L. (Robert Laurence)

McCabe, George T. ; Hinton, Susan A. ; Emmett, Robert L. (Robert Laurence) Less -
Corporate Authors:

Northwest Fisheries Science Center (U.S.). Coastal Zone and Estuarine Studies Division.
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center) Less -
Description:

A site in the Columbia River estuary between Miller Sands and Pillar Rock Island (River Kilometers 40-42) (Fig. 1) is being investigated by the COE, Portland District under the Long-Term Management Strategy for dredged-material management in the Columbia River estuary. The proposed disposal site has been identified as an active erosion location. Since 1958, this area has eroded from a shallow subtidal habitat (0 to 1.8 m (0 to 6 ft) Columbia River Datum (CRD)) to the present depth of 7.6 m (25 ft) CRD. Approximately 9.2 million m3 (12 million yd3 of material have eroded. The annual erosion rate at this area is estimated to be 53,515 m3 (70,000 yd3) of material
Keywords:

[+]

Habitat (Ecology) Habitat Conservation Modification Observations River Sediments
Format:

PDF
Document Type:

Non-series Report
Place as Subject:

Columbia River Estuary (Or. and Wash.)
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:82a25ac42a31ae5baa21cfd14bd3c8db3340f99c8c80d11d7775a7241cf4add1
Download URL:

https://repository.library.noaa.gov/view/noaa/56380/noaa_56380_DS1.pdf
File Type:

Machine Readable Version (JSON)

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