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<br />a1 so prohibi.ti.ve1y expensive. An estimated cost of over three mi 11 ion <br /> <br /> <br />dollars, plus the fact that the actual reduction of thE! flood peak <br /> <br /> <br />within the city will be only a few hundred cfs, makes the scheme in- <br /> <br /> <br />feasible, <br /> <br />Cedar Creek <br />Plan 1 - This plan consists of floodplain managemE~nt along the entire <br />reach of Cedar Creek, as described in Montrose Arroyo - Plan 1. <br /> <br />Plan 2 - This plan calls for increasing the capacity of the channel <br />to convey the 100-year discharge (l,200 cfs) alon~J the entire reach. <br />The following crossing structures are proposE'd: <br /> <br />Hi 11 crest Dri ve <br />North 3rd Street <br />Road 6530 - <br /> <br />8' x 20' Box Culvert <br />7' x 20' Box Culvert <br />10' x 12' Box Cul vert <br /> <br />This alternative would provide excellent flood protection for the <br />City of I~ontrose, but would involve rep1acins two culverts \vhere <br />there is little existing damage potential. <br /> <br />Plan 3 - This plan calls for the replacement of only the crossing <br />at Hillcrest Drive. A 8' x 20' box culvert is proposed which would <br />eliminate overflow flooding of the Gibson's Shopping Center. With <br />this plan, flood flows would be confined to the channel along Cedar <br />Creek everywhere except in the vi ci nity of North 3rd Street and <br />Road 6530. At these two 1 oca ti ons, however" therE! are no structures <br />in the existing floodplain. This alternative provides good flood <br />protection with minimal structural improvements. <br /> <br />- 28 -. <br />