1 Floodplain Management SESSION 26 Rivers as a Legal Battleground Human occupancy of floodplains and...

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Floodplain ManagementSESSION 26

Rivers as a Legal Battleground

Human occupancy of floodplains and urban riverfronts

Prepared by Frank Westerlund, Ph.D.

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Human occupancy of floodplains and urban riverfronts

Objectives:

26.1 Discuss the history and evolution of human occupancy of floodplains and urban riverfronts

26.2 Identify values people place on floodplains and riverfronts

27.3 Identify planning and design principles for human use of floodplains and riverfronts that optimize values and sustain natural system functions

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Encyclopedia: Image:Mesopotamia.jpghttp://www.aquarius.geomar.de/This image has been released into the public domain by the copyright holder, its copyright has expired, or it is ineligible for copyright. This applies worldwide.

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Cincinnati River Front (1848)

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Merchandise Mart on the Chicago River

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Ogden River, Utah

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Cincinnati River Front Stadium

8http://www.corpsresults.us/pdfs/navigation.pdf

U.S Inland and Intra Coastal Waterways

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Rational Method

RATIONAL MODEL FOR COMPUTING Q PEAK DISCHARGE FROM A WATERSHED OR SUBBASIN

Where Q = Peak discharge in cubic feet. Per second A = Area of the watershed in acres

C = Coefficient of runoff for the watershed, based on area-proportional, combined runoff coefficients for slop, land cover and

soil typesT = Concentration time (in minutes) I = Maximum rainfall intensity (in inches per hour) that can occur

during the concentration timeM = Mannings’s coefficient of roughness

Q = f ( A, C, T, I, M )

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Low-Impact Residential Development Concept for a Suburban Sub-basin

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Conservation

Open Drainage

Rain Gardens

Amended Soils

Rain Barrel

Reduced Imperviousness

LID SiteLID Site Porous

Pavement

Create a Hydrologically Functional Lot

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Zero Rise

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Direction of Scour

Overhanging vegetation replaced by development on high bank

Migrating Channel

Floodplain

Importance of Buffers

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Serpentine Wall, Cincinnati

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Cincinnati Riverfront

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Cincinnati Riverfront

Source: Port of Greater Cincinnati Development Authority

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Cincinnati Riverfront

Source: Port of Greater Cincinnati Development Authority

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Muscatine Riverfront

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Davenport Iowa

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Urban Riverfronts – Saint Louis

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Moonwalk, New Orleans

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Savannah River Levee, Augusta, Georgia

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Tom McCall Riverfront Park, Portland, Oregon

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South Saskatchewan Flood Waters - Saskatoon

The Meewasin Valley Authority is a conservation organization dedicated to protecting the natural and cultural heritage resources of the South Saskatchewan River Valley in Saskatoon, Canada

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http://www.environmentaleducationohio.org/Site%20Archives/Case%20Studies/willamette.html

Willamette Greenway