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Last modified
1/29/2010 10:11:46 AM
Creation date
10/4/2006 9:27:32 PM
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Floodplain Documents
County
Jefferson
Park
Community
Buffalo Creek
Title
Flood Mitigation and Flood Hazard Awareness for Residents of Buffalo Creek Colorado
Date
4/1/1997
Prepared For
Jefferson County
Floodplain - Doc Type
Flood Mitigation/Flood Warning/Watershed Restoration
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<br />large magnitude of rainfall and is considered to be a rare event for the area. According to the <br />statistics and the available published data, the chance of having a similar event in any given year is <br />quite small. However, this does not mean that the flood threat is minimal. <br /> <br />It is important to note that the flood peaks on Sand Draw, Spring Gulch, Buffalo Creek, and other <br />nearby tributaries occurred within less than one hour from the start of the heavy rainfall. Flow <br />velocities in some streams were at least 15 to 20 feet per second. This situation, known as flash <br />flooding, is extremely dangerous. Residents, recreationists, and visitors should be aware of and <br />prepared for future flash flooding that could potentially occur in the area. Property damage and loss <br />of life is always a possibility during flash flooding. As the Buffalo Creek residents are well aware, <br />the power of a flash flood event should not be underestimated! <br /> <br />B. HIGH HAZARD AREAS <br />Due to the burned areas in the Buffalo Creek and adjacent watersheds, several streams have been <br />identified as having unusually high flood potential until such time that their watershed areas recover <br />from the forest fire. Following are examples of the high hazard streams in the area: <br /> <br />Stream Name Hi!!h Hazard Reaches <br />Buffalo Creek From the confluence with the North Fork upstream to the <br /> intersection of Forest Roads 543 and 550 <br />Sand Draw From the confluence with Buffalo Creek upstream to the <br /> headwaters <br />Spring Gulch From the confluence with Buffalo Creek upstream to the <br /> headwaters <br />Shinglemill Creek From the confluence with Buffalo Creek upstream to the <br /> headwaters <br />Morrison Creek From the confluence with Buffalo Creek upstream to the <br /> headwaters <br />Spring Creek From the confluence with the South Platte River upstream <br /> to the headwaters <br />North Fork of South Platte River From the confluence with the South Platte River upstream <br /> to the confluence with Buffalo Creek <br />South Platte River From Strontia Springs Reservoir upstream to the confluence <br /> with Spring Creek <br /> <br />C. WATERSHED RECOVERY <br />The natural recovery of the burned areas in the Buffalo Creek vicinity could be a long process. <br />Fortunately, with the aggressive reclamation actions by the U.S. Forest Service and the Colorado <br />State Forest Seryice, the initial stages of the recovery should be enhanced and accelerated. The <br />hydrologic response of the burned watersheds will likely depend on the level of vegetative and soil <br />surface recovery. Following are some key phases to the recovery process: <br /> <br />. Break-up of hydrophobic (water repellent) soils <br />. Recovery of native grasses, forbs, and shrubs <br /> <br />8 <br />
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