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I I I I I I I I I I I I I I I I I I I 19 2. 22nd Street to South Broadway a. A box culvert would be constructed in the existing right- of-way. b. A vertical walled open channel would be constructed on the existing right-of-way. 3. Broadway Crossi nq a. Install new culvert for lOO year flood. b. Leave existing culvert and flood plain zone area west of B roa dway . 4. Basemar Area and Turnpike a. Construct 100 year channel in existing right-of-way and construct new culvert under Turnpike Interchange. b. Construct 100 year channel coupled with hydrograph peak storage ponds in conjunctIon with apartment house develop- ment partially or caissons over open water surface of ponds. Ponds to be sized to fit capacity available in Turnpike culvert. (It should be noted that significant flood COn- trol dikes already exist in this area). 5. Turnpike to Wellman Canal a. This reach of Skunk Creek would follow the existing route, with channel rectification limited to that needed to carry the flood safely, and without excessive erosion. Modification would be r~qulred at the "live duck" office building and the downstream apartment complex. The area above Wellman Canal off~rs an ideal location for a neighborhood park. b. Use larger existing structures, replace smaller ones and up- grade channel capacity to brIdge capacity. The Frequency protection would not be 100 year. 6. Wellman Canal to Bear Creek The channelization would follow the contour defined thalweg north of the Wellman Canal to Bear Creek Just south of Arapahoe Avenue. The channel would be a wld~, slow flow type which would provide ground water table control and a suItable outfall for local storm sewers.