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C-1 40 of one (1) square foot of land varied between $3.48 and $29.90 for government, single family residential, multi -family residential, commercial and time-share land use properties along the Oceanfront (refer to Table 3), Construction costs for new seawalls or revetments were assumed to be $750 per linear front foot for residential properties. Maintenance costs for seawalls and revetments were estimated at approximately $17 per front foot per year for existing erosion control structures. The "without project" storm protection alternatives are whatever actions are in the oceanfront property owners' economic interest to protect themselves from yearly landward erosion as allowed by existing local and state policies and regulations. Oceanfront properties fall into five (5) categories including: single family residential, multi -family residential, timeshare, commercial and government properties. In addition, oceanfront properties are comprised of two (2) subcategories: properties with an erosion control structure and properties without an erosion control structure. It is assumed that the seawalled oceanfront properties will maintain or repair their existing erosion control structures in the absence of a project and sets their benefits equal to the maintenance cost savings over a projected 30 -year benefit period. The "without project" benefit to unarmored (i.e., non -hardened) oceanfront properties is whatever actions are in the oceanfront nrnnPrty owners' econornic interest to protect themselves from yearly landward erosion and the occurrence of a 15 -year storm event in Sector 7 a five (5) -year storm event was appliedif the major habitable structures on the properly are in jeopardy of significant structural damage from yearly landward erosion or a 15 -year storm event, it is assumed that the property owner will armor the shoreline (i.e., construct an