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→Life Cycle Costs
==Life Cycle Costs==
==Life Cycle Costs==
Below are capital and life cycle cost estimates for the [[Enhanced swales]] Full Infiltration configuration over 25- and 50-year time periods. The estimates of maintenance and rehabilitation (life cycle) costs represent net present values. Operation and maintenance costs are predicted to represent 45% of total life cycle costs over the 25-year evaluation period, and increase to 59% of total life cycle costs over the 50-year period, due to increased levels of litter removal, watering (establishment period - years 1 & 2 / annually and / drought watering) cleaning out and vacuuming of the catchbasin, mowing, replacement of sod, weeding and pruning of the BMP's planted [[vegetation]].
Below are capital and life cycle cost estimates for the [[Green roofs]] with a No Infiltration configuration over 25- and 50-year time periods. The estimates of maintenance and rehabilitation (life cycle) costs represent net present values. Operation and maintenance costs are predicted to represent 45% of total life cycle costs over the 25-year evaluation period, and increase to 59% of total life cycle costs over the 50-year period, due to increased levels of litter removal, watering (establishment period - years 1 & 2 / annually and / drought watering) cleaning out and vacuuming of the catchbasin, mowing, replacement of sod, weeding and pruning of the BMP's planted [[vegetation]].
===25-Year life cycle cost break down===
===25-Year life cycle cost break down===
[[File:25yr LCCT EnhancedSwales Full Infil.PNG|thumb|center|900px|'''Enhances Swales: Full Infiltration''']]
[[File:25yr LCCT GreenRoof No Infil.PNG|thumb|center|900px|'''Enhances Swales: Full Infiltration''']]
<small>'''Note:''' Click on each image to enlarge to view associated life cycle cost estimate.</small><br>
<small>'''Note:''' Click on each image to enlarge to view associated life cycle cost estimate.</small><br>
===50-Year life cycle cost break down===
===50-Year life cycle cost break down===
[[File:50yr LCCT EnhancedSwales Full Infil.PNG|thumb|center|900px|'''Enhances Swales: Full Infiltration''']]
[[File:50yr LCCT GreenRoof No Infil.PNG|thumb|center|900px|'''Enhances Swales: Full Infiltration''']]
<small>'''Note:''' Click on each image to enlarge to view associated life cycle cost estimate.</small><br>
<small>'''Note:''' Click on each image to enlarge to view associated life cycle cost estimate.</small><br>