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U
U.S. Army Corps of Engineers. Portland District. The Siuslaw Estuary and the Umpqua Estuary, Including the Smith River: Final Environmental Impact Statement. Portland, Or.: U.S. Army Corps of Engineers, Portland District, 1975.
U.S. Army Corps of Engineers. Portland District. Western Oregon Streams: Report on Floods of December 1955. Portland, Or.: U.S. Army Corps of Engineers. Portland District,, 1956.
U.S. Army Corps of Engineers. Portland District. Winchester Bay (Salmon Harbor) Channel Improvements, Umpqua River, Oregon: Detailed Project Report and Environmental Assessment. [Portland, Or.]: The District, 1982.
U.S. Army Corps of Engineers. Portland District. Report on Floods : December 1964 - January 1965. Portland, Or.: The District, 1966.
U.S. Army Corps of Engineers. Portland District. Winchester Bay (Salmon Harbor) Channel Improvements, Umpqua River, Oregon: Draft Detailed Project Report & Environmental Assessment. [Portland, Or.]: The District, 1982.
U.S. Army Corps of Engineers. Portland District, and Mandaville Associates. "[Umpqua River section]." In Federal Navigation Projects: the Oregon Coast Maintenance Program, p.68-77. Portland, Or.: Portland District, U.S. Army Corps of Engineers, 1991.
U.S. Army Corps of Engineers. Portland District. Postflood Report, January 1974 Flood in the Portland District, Oregon and Washington : Columbia River Basin, Willamette River Basin, Rogue River Basin, Umpqua River Basin, Coastal Rivers. [Portland, Or.]: The District, 1975.
U.S. Army Corps of Engineers. Portland District. Umpqua River Jetty Extension: Environmental Impact Statement . Washington, D.C.: U.S. Army Corps of Engineers Portland District, 1976.
U.S. Army Corps of Engineers. Portland District. Douglas County, Oregon, Flood Plain Information: Interim Report. Portland, Or.: The District, 1966.
U.S. Army Corps of Engineers. Portland District. Water Resources Development in Oregon. Portland, Or.: United States Army Corps of Engineers, 1991.
U.S. Army Corps of Engineers. Portland District. Draft Environmental Impact Statement: the Siuslaw Estuary and the Umpqua Estuary, Including the Smith River. [Portland, Or.]: The District, 1975.
U.S. Army Corps of Engineers. Portland District. Days Creek Lake, South Umpqua River, Oregon: Final Environmental Statement. Supplement. Portland, Or.: The District, 1976.
U.S. Army Corps of Engineers. Portland District, and Oregon Institute of Marine Biology. Umpqua Training Jetty Extension Monitoring Study: 1980 Preimpoundment Report. Portland, Or.: The District, 1981.
U.S. Army Corps of Engineers. Portland District, and U.S. Environmental Protection Agency. Region 10. Site Management and Monitoring Plan (SMMP) for the Umpqua River Ocean Dredged Material Disposal Sites, OR . Portland, Or.: U.S. Army Corps of Engineers, Portland District, 2009.
→ www.epa.gov/sites/default/files/2015-08/documents/r10-_umpqua_smmp_2009.pdf
U.S. Army Corps of Engineers. Waterways Experiment Station. Plans for reduction of shoaling at the entrance to Umpqua River, Oregon : Model investigation In Technical Memorandum (Waterways Experiment Station (U.S.). Vol. no. 2-277. Vicksburg, Miss.: U.S. Waterways Experiment Station, 1949.
→ erdc-library.erdc.dren.mil/jspui/handle/11681/21318
U.S. Bureau of Land Management. Medford District Office. Water Quality Restoration Plan: Umpqua River Basin, South Umpqua Subbasin, Middle Cow Creek., 2004.
→ citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=f5647783e7fa427d5ddd0f1b1d2f435784e21af8
U.S. Bureau of Land Management. Roseburg District, and U.S. Forest Service. Umpqua National Forest. Little River Watershed TMDL. Appendix DEF: [TMDL Implementation Plan]., 2001.
→ digital.osl.state.or.us/islandora/object/osl%3A34991
U.S. Bureau of Land Management. Roseburg District, and U.S. Forest Service. Umpqua National Forest. Little River Watershed TMDL. Appendix C : Water Quality Restoration Plan : Umpqua Basin Little River Watershed., 2001.
→ digital.osl.state.or.us/islandora/object/osl%3A34990
U.S. Bureau of Land Management. Roseburg District Office. South River Watershed Restoration Environmental Assessment. Roseburg, Or., 2000.
→ scholarsbank.uoregon.edu/xmlui/handle/1794/7751
U.S. Bureau of Land Management. Roseburg District Office. Watershed Analysis: Elkton-Umpqua WAU (Watershed Analysis Unit) / Roseburg District BLM [microform]. Roseburg, Or.?: The District, 1988.
U.S. Bureau of Reclamation. Umpqua River Project, Oregon, Olalla Division, reconnaissance report. Boise, Idaho: [U.S. Bureau of Reclamation], 1959.
U.S. Bureau of Reclamation. Umpqua River Basin, Oregon; Special Report (Evaluation). Boise, ID: U.S. Dept. of the Interior, Bureau of Reclamation, 1956.
U.S. Bureau of Reclamation. Umpqua River Project, Oregon, Oakland Division, reconnaissance report [by] U.S. Bureau of Reclamation, region 1. Boise, Idaho, 1961.
U.S. Bureau of Reclamation. Olalla Division. Umpqua River Project, Oregon / Olalla Division, Bureau of Reclamation. Boise, Idaho: The Division, 1964.
U.S. Coast Survey. Preliminary Survey of the Entrance to Umquah River, Oregon [cartographic material]., 1854.
→ digitalcollections.nypl.org/items/b4ac5340-2a2c-0136-8a1e-5bb642116435

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