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<br />A benefit is provided when any one of the objectives <br />is met. Benefits are usually classified as tangible or in- <br />tangible depending on the extent to which they can be <br />measured in monetary units. <br />Since it is difficult or impossible to quantify intanglble <br />benefits and even many of the tangible benefits, it is <br />recommended that the tanglble benefits quantified for <br />landslides include main1y 1) rnmimi..tion of property <br />damage 2) mmimi..tion of maintenance costs, and 3) <br />preservation of life (lawsuits have been filed and won in <br /> <br />36 <br /> <br />wrongful eath cases on the basis of potential lifetime <br />earnings). <br />For mo information on how to prepare a cost-benefit <br />analysis, e the Urban Drainage and Flood Control <br />District rt (1977). <br />For mo information on how to prepare a cost- <br />benefit is. see the report Feasibility evaluation: <br />mdhodo for evaluation of feasibility by the Multi- <br />jurlsdictio Drainage and Flood Control District, <br />Denver, 0 ($77). <br />