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Flood profiles in the Umpqua River basin, Oregon Public Deposited

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https://ir.library.oregonstate.edu/concern/defaults/sx61dr443

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Abstract
  • The elevations and characteristics of floods are major factors that influence land-use planning of the flood plains of any stream. As the lowlands become more intensively used, it becomes increasingly important to have a firm basis for assessing the risk of flood damage. Land-use zoning is not only a legal requirement passed by the Oregon State Legis­lature in 1969; it is necessary to ensure a use compatible with the risk of flood damage. The approximate areas flooded in the Umpqua River basin in 1955 and 1964 are shown in an interim report.(Corps of Engi­neers, 1966). However, there are no published flood-elevation profiles. Such profiles are needed to delineate areas inundated by floods of a specific recurrence interval and to establish land-use zone boundaries. This study was made at the request of Douglas County to develop profiles for the 10-, 25-, 100-, and 500-year floods and the December 1964 flood. This report is first of a series of three reports which will cover approximately 300 miles of Umpqua River basin streams. The reaches studied for this report are: the Umpqua River from Hubbard Creek below Coles Valley to the confluence of the North and South Umpqua Rivers, the North Umpqua River from the mouth to Winchester Dam, the South Umpqua River from the mouth to Clough Gulch downstream from Days Creek, Deer Creek from the mouth to Tucker Creek, Myrtle Creek from the mouth to Cedar Hollow on South Myrtle Creek and to the stream-gaging station on North Myrtle Creek, and Cow Creek from the mouth to the stream-gaging station near Riddle.
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  • 1. South Umpqua Rver and parts of selected tributaries below Day's Creek; North Umpqua River below Winchester; Umpqua River above Hubbard Creek.--pt. 2. Umpqua River, Scottsburg to Hubbard Creek; North Umpqua River, Winchester to Idleyld.--pt. 3. Umpqua River below Scottsburg; Smith River; Schofield Creek; Cow Creek above Glendale.
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  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 Grayscale), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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  • description.provenance : Made available in DSpace on 2008-11-13T22:31:31Z (GMT). No. of bitstreams: 3 Flo_Pro_Ump_Riv_Part1_.pdf: 8210869 bytes, checksum: 78f7bf4e8bdd14c8db12b32b336ad47b (MD5) Flo_Pro_Ump_Riv_Part2_.pdf: 7962468 bytes, checksum: d122fcb3d98d3c319da13f3d6e0e32c5 (MD5) Flo_Pro_Ump_Riv_Part3_.pdf: 7042136 bytes, checksum: 6f95cee0ddb942852bc1b8d3b73a3e6f (MD5) Previous issue date: 1972
  • description.provenance : Submitted by Joe Nguyen (jnscanner@gmail.com) on 2008-11-13T20:45:03Z No. of bitstreams: 3 Flo_Pro_Ump_Riv_Part1_.pdf: 8210869 bytes, checksum: 78f7bf4e8bdd14c8db12b32b336ad47b (MD5) Flo_Pro_Ump_Riv_Part2_.pdf: 7962468 bytes, checksum: d122fcb3d98d3c319da13f3d6e0e32c5 (MD5) Flo_Pro_Ump_Riv_Part3_.pdf: 7042136 bytes, checksum: 6f95cee0ddb942852bc1b8d3b73a3e6f (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2008-11-13T22:31:30Z (GMT) No. of bitstreams: 3 Flo_Pro_Ump_Riv_Part1_.pdf: 8210869 bytes, checksum: 78f7bf4e8bdd14c8db12b32b336ad47b (MD5) Flo_Pro_Ump_Riv_Part2_.pdf: 7962468 bytes, checksum: d122fcb3d98d3c319da13f3d6e0e32c5 (MD5) Flo_Pro_Ump_Riv_Part3_.pdf: 7042136 bytes, checksum: 6f95cee0ddb942852bc1b8d3b73a3e6f (MD5)

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