Water Quality
This map shows the rivers and lakes that are on the 303d list for not meeting state water quality standards.
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Willamette Basin Conservation and Restoration Opportunities
The conservation and restoration opportunities maps allow you to see where Tier 1 and Tier 2 conservation lands could exist, what the land use and land cover was in 1990 and what the native habitat was in 1851.
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Willamette Basin Conservation Trend
The Conservation Trend map illustrates projected land use related to conservation in 2050.
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Willamette Basin Development Trend
The Development Trend map shows projected land use related to development in 2050.
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Willamette Basin Flood Plain Restoration
This set of maps shows the channel of the Willamette River in 1850, 1895, 1932, and 1995 as well as 100- and 500-year flood zones as defined by the Federal Emergency Management Agency (FEMA).
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Willamette Basin Future Scenarios
These maps show projected land use and land cover (i.e. farming, housing, native Oak Savanna) in the future and compare that to the land use and land cover in 1990.
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Willamette Basin Historic Floods
These maps show the extent of major historical floods from records provided by the Army Corps of Engineers and digitized by the U.S. Fish and Wildlife Service.
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Willamette Basin Plan Trend
Plan Trend 2050 represents the expected future landscape if existing long-term plans and policies, such as the Northwest Forest Plan and Oregon's land use planning laws are implemented.
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