Umatilla River Basin Fish Habitat Enhancement : FY 1990 Annual Report.

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Description

During the summer of 1990, construction continued on the Bonneville Power Administration funded anadromous fish habitat enhancement project in the Umatilla River sub-basin, Umatilla County, State of Oregon. Work started on 5/1/90 and ended 10/30/90. A total of five large log weirs, eight large rock weirs, 17 associated weir structures, 19 small to medium rock deflectors, four bank and island reinforcements, three rock flow controls, 19 woody debris placements, and 85 individual boulders were constructed in the South Fork of the Umatilla River. In addition, one large rock weir was constructed at the confluence of the North and South Forks ... continued below

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11 pages

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Northrop, Michael January 1, 1990.

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Description

During the summer of 1990, construction continued on the Bonneville Power Administration funded anadromous fish habitat enhancement project in the Umatilla River sub-basin, Umatilla County, State of Oregon. Work started on 5/1/90 and ended 10/30/90. A total of five large log weirs, eight large rock weirs, 17 associated weir structures, 19 small to medium rock deflectors, four bank and island reinforcements, three rock flow controls, 19 woody debris placements, and 85 individual boulders were constructed in the South Fork of the Umatilla River. In addition, one large rock weir was constructed at the confluence of the North and South Forks of the Umatilla River, and repair work was completed on 33 structures in Thomas Creek. Also, 300 cubic yards of rock and some logs and woody material were moved on site for use in 1991. Preconstruction activity consisted of moving approximately 1,500 cubic yards of large boulders, and dive log truck loads of woody material to the construction site. Project monitoring consisted of sediment sampling above and below the project area and, mapping and photographing and structures. 7 figs.

Physical Description

11 pages

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OSTI; NTIS; GPO Dep.

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  • Other: DE92003442
  • Report No.: DOE/BP-34272-1
  • Grant Number: AI79-87BP34272
  • DOI: 10.2172/6369513 | External Link
  • Office of Scientific & Technical Information Report Number: 6369513
  • Archival Resource Key: ark:/67531/metadc1207947

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1990

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

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Northrop, Michael. Umatilla River Basin Fish Habitat Enhancement : FY 1990 Annual Report., report, January 1, 1990; United States. (digital.library.unt.edu/ark:/67531/metadc1207947/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.