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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />!I <br /> <br />DETAILED STUDY AND ANALYSIS RECOMMENDATIONS <br /> <br />The following detailed work tasks are suggested for consideration. All items are <br />believed to be important to the quality of the effort and design of improvements. <br /> <br />The items denoted H for high are the most important as they could greatly affect <br />the outcome of analysis, hazard identification, planning, and facility function. <br /> <br />M items are of lesser, medium or moderate importance. If the work is not <br />conducted, then the accuracy of the resultant hydrology or floodplain map could be <br />moderately affected, or an improvement project would have to conduct more <br />investigative effort later and/or suffer from increased cost during or after <br />construction. However, basic magnitudes of flows herein are not likely to be <br />affected. For example, work related to the spill above Highway 36 is of "H" <br />importance because significantly different values could result and affect everything <br />downstream. The work associated with the overspill of Highway 36 on the west <br />side of the valley will refine water surface elevations and whether additional minor <br />flows spill at RTD or to the Anderson Ditch to the east occur, but the work will not <br />change the basic magnitude of the overs pill. Its importance is moderate because of <br />this, and the need to have good information for planning or design efforts could be <br />deferred. <br /> <br />The lesser importance items basically could be deferred to later phases of work or <br />as this significance becomes clearer. <br /> <br />Various subtasks are listed in their approximate sequential location in the watershed <br />or logical order of work: <br /> <br />1. Hvdrology and SUDDorting Field Work and Hydraulic Analvsis <br /> <br />A. Field Work <br /> <br />. <br /> <br />Highway 36 spill area including bridge and area <br />upstream to upper levee. <br /> <br />[HI (topo survey plus <br />geotechnical and <br />geomorphic testing <br />in reach from <br />Highways 36 to 93) <br /> <br />. <br /> <br />Upper Dry Creek No.2 System from Highway <br />36 spill to Anderson Ditch <br />(also including other Highway 36 culverts in <br />area). <br /> <br />[HI (instrument <br />survey) <br /> <br />V-2 <br />