Benefit–Cost Analyses Guidebook for Airport Stormwater (2019) / Chapter Skim
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Pages 9-16
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9 Airport staff should begin any BCA with initial planning activities and an assessment of data needs. Thinking through several decisions early in the process will help the airport identify and collect the data it needs and position the airport for a smooth BCA.
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10 Benefit–Cost Analyses Guidebook for Airport Stormwater project(s)
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Plan the Analysis and Identify Data Needs 11 Costs include the cost of the initial investment, as well as necessary O&M expenses and decommissioning costs. The initial investment will typically include expenses like labor, materials, consultant costs, and the cost of the equipment.
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12 Benefit–Cost Analyses Guidebook for Airport Stormwater on the benefits, costs, performance, design, and other aspects of stormwater BMPs, including GSI, is not tailored to airports. Such information may be applicable nonetheless, especially for landside projects.
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Plan the Analysis and Identify Data Needs 13 costs of a project. This level of analysis can be informative to supplement decision making, but the airport must identify and clearly communicate its limitations (e.g., uncertainty of project costs, lack of monetized benefits, or uncertainty of qualitative outcomes)
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14 Benefit–Cost Analyses Guidebook for Airport Stormwater meetings to develop options for addressing stormwater on the new parking lot and terminal. The project team identified important stakeholders as the surrounding community, passengers, and the airport's executive board.
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Plan the Analysis and Identify Data Needs 15 To manage runoff from the new impervious surfaces, BAY has developed the following stormwater management options: Option 1 • Parking lot: A new conventional dry detention basin (approximately 0.3 acres) to capture runoff from the parking area expansion (10 acres of new impervious surface)
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16 Benefit–Cost Analyses Guidebook for Airport Stormwater • Data on regional beach use from a local university's environmental department, • Data on beach repairs and costs from Bayside City Department of Parks and Recreation, • A publicly available online tool that produces cost ranges for various stormwater BMPs (residential and commercial) , and • Historical meteorological data risks of extreme weather from the National Oceanic and Atmospheric Administration's (NOAA's)
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