Get informed about

What’s at Risk

Every year, there’s a significant chance we’ll experience a major flood on the Columbia River in the Portland metro area.

A 27-mile levee system helps reduce the risk of flooding along the Columbia from North Portland through Gresham, Fairview, and Troutdale.

But no levee can eliminate all risk, and the federal government has deemed our levees inadequate to protect lives and for residents and business owners in the area to qualify for affordable flood insurance.

map of levee protected area
CLICK TO SEE MORE DETAIL. The levees protect a number of homes, businesses, jobs, and historic, cultural, environmental, and recreational resources.


And the stakes are high

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22 million passengers annually at PDX .

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2nd largest source of drinking water in Oregon

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$16 billion in economic activity annually.

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Over 7,500 residents

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Over 59,000 jobs

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sections of I-5, I-205, and I-84

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50% of the region’s manufacturing and warehouse jobs

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important habitat for endangered and protected species

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$7.3 billion in assessed property value

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Over 2,000 acres of parks, open spaces, and recreational areas

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Important nonprofit services like the Food Bank and more

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1.4 million trees and shrubs planted by the City of Portland and partners along the slough

a fighter jet icon representing the military airports that are protected by the levee system

The Oregon Air National Guard and other first responders

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17 miles of multi-use path on Marine Drive

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shopping including Cascade Station, IKEA, Walmart, Target, Costco, Lowe’s and more.

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19 miles of water trails for canoeing and kayaking

Find out more about:

What the impacts would be if a section of our levee system failed today

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The major floods on the Columbia over the last century

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The places our community loves in the managed floodplain

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In response to COVID-19 Levee Ready Columbia and MCDD staff a in limited operations. Click here for more information.