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BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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technical guidance on structural and nonstructural measures as well as the<strong>BMP</strong>s that civil engineers commonly employ to address these challenges. Theimmediate and long-term beneficial and adverse impacts to the project area andadjacent environments are also summarized.8.1.4 ALTERNATIVE STRATEGIES FOR SHOREZONE PROTECTIONThere are five alternatives when attempting to mitigate the damage of stormsand severe waves: accommodation, protection, beach nourishment, retreat and,the “do-nothing or no project” alternative (Refer to Figure 8-a). Society’sinvestments in the shorezone are represented by the private or publicdevelopment and/or activities located at legally delineated, topographicallyfixed points in or near the backshore. Storm surge and wave induced erosioncan reduce the distance between the fixed point (e.g., structural asset) and thewater body. Lake level fluctuation and historic shorezone adjustment (erosion)can also reduce the distance, but at generally slower rates. Beach nourishmentcan accomplish the same objective as the retreat option (i.e., increase thedistance between the fixed point and the water body) but it has indeterminatecosts and impacts.TRPA <strong>BMP</strong> HandbookCHAPTER 8: Shorezone Protective Structures and <strong>BMP</strong>s2012 Page 8-3

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