Foredune Management on a Developed Shoreline: Nedonna Beach, Oregon

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by Robert Cortright, Oregon Dep of Land Conservation, & Development, Salem, OR, USA,

Document Type: Proceeding Paper

Part of: Coastal Zone '87:

Abstract: Nedonna Beach and Rockaway Beach are adjoining oceanfront communities with foredunes that were developed before state policies went into effect. The foredunes in these two communities have been altered by homebuilding, grading, and ocean flooding and erosion. Over the last fifteen years foredune accretion at Nedonna Beach has been so extensive that it has blocked views from oceanfront homes. Proposals to grade the foredune to restore views prompted the state to amend its policies to allow limited foredune grading as part of an overall plan to manage and enhance the foredune. A dune management plan prepared for Nedonna Beach prescribes how grading and other management measures will be accomplished. The plan may serve as a model for other areas. Initial grading at Nedonna appears to have been done properly without damaging the dune or increasing the potential for flooding or erosion. Further study of dynamics of sand movement in the area are needed to determine whether or not grading has been successful.

Subject Headings: Coastal management | Soil dynamics | Shoreline | Sand (hydraulic) | Erosion | Dunes | Floods | Seas and oceans | Beaches | Oregon

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