Orestimba Creek Feasibility Study - Stanislaus County

Economics Appendix – Draft Report - Orestimba Creek Feasibility Study, Stanislaus County, California – September 2012
At the time of this writing, much of the planned development in Newman has stopped due to the
economic downturn. It is not known at this time when/if this development may pick up again.
Most development is taking place on the southwest and northeast side of Newman and would not
fall within the current 0.2% (1/500) ACE floodplain. If any inventory were to be developed
within existing floodplains in the future, only damages relating to events less frequent than the
1% (1/100) annual chance event would be counted, as it would be assumed that the structures
were built with foundation heights above the water surface elevation for the 1% annual chance
event. Any resulting damages would likely have minimal impact on the overall project damages.
Therefore, the future condition is assumed to be the same as existing condition for purposes of
this analysis.
Floodplain maps showing the existing condition 10% annual chance and 0.2% annual chance
events are show in the figures below.
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