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Temporary Trail Closure: The objective of temporary closure of trails is to reduce risk to human life <br />and safety. <br />Communication and Emergency Response Planning: Another important objective of the BAER Team <br />is to communicate the findings of this report to the National Weather Service, the Larimer County <br />Office of Emergency Services and the local Fire Protection Districts. The purpose of this <br />communication would be to inform these entities of anticipated post wildfire watershed response and <br />associated threats to public safety. This information could be utilized in the development of early <br />warning systems or emergency response plans. <br />40] IN 01:7_1�:7 <br />The objective of cultural resource treatments is to prevent irretrievable loss of archeological <br />information, to prevent looting by informing recreational users of the importance of archaeology and <br />federal laws that prohibit theft of artifacts and damage to historic or prehistoric sites, to prevent <br />erosion on disturbance of archaeological materials, and to divert runoff that is adversely affecting the <br />foundation of a recreation residence. <br />C. Market Resource Values (direct losses and loss of use) <br />Direct losses and loss of use associated with the resource values are associated with rainfall events <br />that are likely to occur over the burn area in the future. Assigning a dollar value to these losses is <br />extremely difficult because of the uncertainty about the location and severity of future rainfall events <br />and resultant floods over an area this large. <br />At present and during the immediate future, providers of potable water and irrigation companies will <br />be impacted by ash, sediment and debris transported by storm runoff into waterways, most notably <br />the Poudre River and Horsetooth Reservoir, from the burn area. The cities of Greeley and Fort <br />Collins have estimated that loss of direct flow rights on the Poudre River ranges from $500,000 to $1 <br />million annually for each city. Fort Collins estimates additional treatment costs will be from $500,000 <br />to $1.4 million annually, and Greeley estimates additional treatment costs will be from $500,000 to $1 <br />million annually. The Tri- Districts estimates the additional treatment costs for their Soldier Canyon <br />Filter Plant will be $650,000 to $1.3 million annually. These costs depend not only on the frequency <br />and severity of future rainfall events, but also on the recovery time for the watershed —the number of <br />years it takes the watershed to return to a pre -fire condition. <br />Unburned homes in several communities, particularly in Poudre Park and Bellvue, are at significantly <br />increased risk for flood damage because of the much higher runoff and debris flows expected from <br />even modest rainfall events. Initial hydrologic analyses suggest that the likelihood of very damaging <br />runoff (runoff which had been considered a 100 -year storm under pre -fire conditions) may be twenty <br />time greater in post -fire conditions. That is, the likelihood of potentially very damaging runoff which <br />had a 3 to 5 percent chance of occurring during the next 3 to 5 years under pre -fire conditions now <br />has a 60 to 100 percent chance of occurring during the next 3 to 5 years. Homes scattered <br />throughout the burn area located in or near drainageways are now exposed to similarly higher levels <br />of risk from flooding and debris flows. Because it is more likely that intense precipitation will occur <br />over areas smaller than the entire burn area, it is virtually impossible to estimate a specific dollar <br />amount for direct losses from flooding and debris flows. <br />The risk of damage to public roads, including State Highway 14 in Poudre Canyon, is similarly difficult <br />to estimate. Flooding and debris flows in the burn area have already occurred, necessitating cleanup <br />effort to remove accumulated debris from roadways. Additional flooding and debris deposition will <br />certainly occur over at least the next 3 to 5 years. More severe flooding which will overtop and <br />potentially wash out roadways is highly likely, and again significantly more likely than under pre -fire <br />conditions. But the location and severity of damage to roads depends on the location and intensity of <br />High Park Fire Emergency Stabilization Plan Page 17 <br />