|
<br />I
<br />I
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />.
<br />I
<br />
<br />II
<br />
<br />.
<br />I.
<br />I
<br />.
<br />
<br />230 cfs. When a 100 year event occurs, the peak runoffwill be approximately 430 cfs. Ifpeak
<br />runoff values are over 18 cfs the Holita ditch will flood causing damage to homes and businesses
<br />in the surrounding areas down slope from the Holita Ditch.
<br />To accomplish the tasks that both the City ofWalsenburg and Colorado Water
<br />Conservation Board required, we will present a summary report that contains information
<br />concerning the history, the location, and the population ofWalsenburg. For this project, we
<br />provide both precipitation and temperature records ofWalsenburg and some legal aspects, such
<br />as: the private companies that own the ditch, the liablilty of these companies, the owner's
<br />concerns and remarks concerning the Holita Ditch, the Federal and Local governments'
<br />involvement, and laws regarding the responsibility of the ditch. Information on insurance aspects
<br />are given, such as flooding information, causes of flooding, definitions of 10 and 100 year flood
<br />events, zones, increases in flows, and the extent of the flooding. Storm drain information,
<br />concerning history, the location entering the Holita Ditch, dimensions, and compositions are also
<br />provided. Holita Ditch information is given to our clients, such as the dimensions before the ditch
<br />goes underground, the location of the ditch underground, the dimensions at the drain intersection,
<br />the continuing path and intersection at 1-25, the flowrate of the Holita Ditch, and the field work
<br />concerning the ditch. Knowledge of the Holita Ditch soils are given, such as Ft Collins loam,
<br />Glenburg sandy loam, Manzona loam, Noden sandy loam, Nunn loam. Drainage basin soils, such
<br />as Louviers-Travessilla-Rock outcrop, Noden sandy loam 8-15%, Noden loam, Olney sandy
<br />loam, Olney-Progresso sandy loam, Razor clay loam, Razor silty clay, Schamaber-Midway
<br />complex, and Tranessilla-Kim complex, are included. The drainage basins, concerning drainage
<br />runoff, roughness analysis, the south sloping aspect of the hill and the drainage areas are noted.
<br />Information concerning hydrology, such as the definition of hydrology, the hydrologic cycle, the
<br />basis of hydrology, the science of hydrologic studies and water, surface-water hydrology, stream
<br />flow and Manning's equation, rainfall, infiltration, the Rational Method, the effect of surfaces on
<br />rate of runoff, hydrology of an urban area, drainage systems in urban areas, uses and
<br />characteristics of storm systems, engineering problems when dealing with urban hydrology, water
<br />quality of urban runoff, and different alternatives for the control of urban runoff quantities, are
<br />reported. All of this information is essential for the complete study of the Walsenburg project.
<br />
|