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<br />2, The Contractor shall prepare detailed cost estimates
<br />for each approach at a level of effort sufficient to allow
<br />comparison with a conventiona1 structure of similar pur-
<br />pose and size, The estimate shall include unit cost data,
<br />quantity estimates, and shall highlight those items of
<br />cost which result from the requirement to flood proof,
<br />The applicabie Engineering News Record index shall
<br />be supplied to allow adjustment for inflation and iocal
<br />construction cost variation throughout the Nation
<br />[Appendix E]. Choice of materials shall be with the con,
<br />tractor; however, they should be limited to those gene-
<br />rally available nationally and consistent with the need to
<br />reduce flood vuinerability,
<br />
<br />3, The Contractor shall prepare the design alternatives
<br />and cost estimates to be applicable as widely as prac-
<br />ticable throughout the Nation and identify and evaluate
<br />key factors significantly affecting cost, such as design,
<br />height of flooding and site physical conditions, and their
<br />effects upon national transfer,
<br />
<br />The research effort evaluates the costs and benefits of
<br />a~ernative flood proofing approaches for a small com,
<br />mercial building, The flood proofing approaches include
<br />wet flood proofing, raised on fill, partially raised on fill
<br />and equipped with watertight closures and elevated on
<br />columns. The national applicability of these alternative
<br />flood proofing approaches is addressed briefly,
<br />
<br />Impact of Urban Renewal and the National Flood
<br />Insurance Program
<br />
<br />Jersey Shore is located in Lycoming County along the
<br />West Branch ofthe Susquehanna River, Over the past
<br />several decades II has been undergoing a series of eco-
<br />nomic changes, and population has been declining4 The
<br />Hurricane Agnes disaster in 1972 caused widespread
<br />flood damage, These damages accelerated the need for
<br />land use changes, An urban renewal program was
<br />developed by the Pennsylvania Department of Commu'
<br />nily Affairs, In an letter of April 4, 1973 to the Lycoming
<br />County Redevelopment Authority, the objectives of the
<br />program were stated as follows:
<br />1, Site clearance and reduction of building density (on
<br />the floodplain),
<br />2. Future lower density development to be constructed
<br />as per Federal Insurance Administration standards,
<br />3. Extensive storm sewer development.
<br />4, Open space areas to be recaptured along both the
<br />Susquehanna River and Lawshe's Run,
<br />5, Participation in the National Flood Insurance Pro'
<br />gram (Regular Program),
<br />
<br />To date, the urban renewal program has expended
<br />$6,700,000 to acquire and demolish approximately 80
<br />flood plain properties including 23 major commercial
<br />properties in the downtown area, Plans for the redevel,
<br />opment of the cleared land have not been implemented,
<br />
<br />Jersey Shore is in the Regular Program of the National
<br />Flood Insurance Program, its special flood hazard area
<br />having been identified April 6, 1973, Therefore, subsi-
<br />dized insurance is available to existing structures, but
<br />new construction must pay actuarial rates for flood insur,
<br />ance,' These actuarial rates decline dramatically, how,
<br />ever, when buildings are flood proofed to or above the
<br />base flood elevation,
<br />
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