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<br />-. <br />, <br /> <br />. <br /> <br />COMMUNITY OF WELDONA <br />MORGAN COUNTY, COLORADO <br /> <br />Conceptual Flood Hazard Mitigation Alternatives <br /> <br />The basic flood hazard mitigation opportunities that exist for Weldona are presented in the <br />following table. <br /> <br />D... '..l!ioti.. . .l1iAlte...~..,EE../{./..{..n.E; .;{~ted!ID.ti;.{; jjjii"..,.lomutt\4llte~ltj.I' <br />~ ' est ou'o .,< -, m '~~ieq?k,t'o'-':8Pi,d'r~~;:: cfY%,', _ !',,,'QS ;,rg <br />" ___ _ _ L 0, _ ,_,~,' e','_-~',_,f,~,@,'1<,,,,,'h,o'~' <br />Relocate Weldona $3,000,000 Low <br />Floodnroof or elevate structures $1,000,000 High <br />Structural Flood Control Measures $600,000 High <br />Do nothing $0 Low <br /> <br />The cost estimates shown above are very preliminary and should be used for comparison <br />purposes only. Detailed cost estimates should be established prior to selection and <br />implementation of the desired mitigation alternative. On behalf of Morgan County, the CWCB is <br />developing conceptual design plans for the "Structural Flood Control Measures" alternative. The <br />structural alternative may consist of the following features: <br /> <br />. · Improve capacity of existing drainage channel that runs parallel to the railroad embankment. <br /> <br />· Construct new drainage channel from Highway 144 to the South Platte River along CR 9 <br />(R.O.W. acquisition will be required). <br /> <br />· Remove existing undersized culverts at several locations and replace with larger culverts. <br />Add new culverts at two locations to increase flow capacity. <br /> <br />· Construct a flow channel along Warren Street by lowering the street, inverting the crown, and <br />paving the street surface. <br /> <br />. Construct a ring levee to protect the school buildings. <br /> <br />· Construct a diversion dike to direct upstream flows to the Warren Street flow channel. <br /> <br />. Raise the elevation of two roadways and provide culverts to the improved drainage ditch. <br /> <br />. Remove the existing railroad trestle bridge (east of Weldon a). <br /> <br />. <br />