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I I I I I I I I I I I I I I I I I I I According to two separate articles published by the Rocky Mountain News, 1.4 inches of rain fell in less than an hour during the July 23'd storm, and 0.75 inches of rain was recorded in an 8-hour period for the August 3'd storm. Since these values do not share the estimated storm duration of three hours, their durations are called-out specifically in the table. No flow gages were analyzed or considered in this analysis because there were no reports of flooding due to nearby streams. Flooded Area Description Since no rivers or streams flooded during the two studied events, few areas sustained major damage or were underwater for an extended length of time. During the July 23rd event, "...a bridge providing the only access to Lemon Reservoir was covered in a 4-foot thick wall of boulders, tree limbs, and mud" (Kostka, 2). Several other roads and bridges were covered with mudflows including: CR (County Road) 240, CR 250, CR 243, CR 245, CR 501, and some residential driveways. County Roads 240 and 501 were closed once again after the August 3'd event. According to an article published by the Denver Post, three to four homes had water and silt in their homes. Several businesses also had water and debris in their yards and parking lots (Turner, 1). Estimated Flood Damal!es & Anv Special Factors Affectinl! the Flood Both storms caused damage to areas south ofVallecito and Lemon Reservoirs. Roads, bridges, culverts, and other public facilities were covered with mud and debris and were closed until the clean-up process was complete. Some houses and businesses suffered water and mud damage to low-lying areas. However, most of the damage was limited to the outdoor areas surrounding the home, or building, rather than the structures themselves. A common occurrence during both storms was area propane tanks being lifted away from their supports and transported hundreds of feet away. Vehicles, furm machinery, sheds, and clothing were among the other kinds of personal property that were also relocated by the flood flows. At the time of this study, no damage cost estimates could be obtained from city or county contacts. No injuries or casualties were reported from these events. The Missionary Ridge Fire was a unique mctor that affected the storm events analyzed in this report. In mct, it is reasonable to conclude that the damage from this fire caused, or at least increased, the effects from the two storms. The hydraulic conclusions suggest these storms were likely less than 2.year events meaning they were common storms experienced ICON E~;inee~in9, Inc " jj January 2003