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$IlC1'IO:< x B. Zuni St. to Federal Blvd. SEQUENCE OF IMPLEMENTATION C. Remaining portions of channel to be constructed in con- junction with Parks Department developments if such are forthcoming in the near future. If the Parks Department does not proceed with improvements, the channels should be constructed as funds become avail- able. The following information presents a recommended sequence of implementation for the Sanderson Gulch/Weir Gulch drainage improvements recognizing that certain items of construction have a higher priority due to their immediate effect on the drainage basins. Also, some items must be completed prior to others since the functioning of one is directly dependent upon the other. The recommended sequencing will allow for con- struction of the project in phases as funding becomes available. D. Installation of check dams in existing Parks developments. 7. Priority for channel improvement in Lakewood. A. Channel construction adjacent to Jewell Ave. including the installation of street crossings of intersecting streets. This may be accomplished prior to or at the same time as Jewell is improved. SANDERSON GULCH 1. Flood plain zone areas .subject to inundation by 100 year storm to prevent further encroachments on the flood plain prior to construction of improvements. 2. The improvements to the existing storage reservoirs should be accomplished to preclude a major catastrophe occurring due to breaching of the dikes. These improve- ments should consist of the actual construction necessary together with obtaining agreements and/or ownership of the reservoirs. The Green Gables entrance road and the con- duits beneath it should be considered as a reservoir since failure of the existing road fill might release d considerable volume of stored water as a flood wave. B. Between Garrison St. and Kendrick Reservoir. C. Between Smith Reservoir and Kendrick Res"'rvoir prior to further development of the area. NORTH SANDERSON GULCH 1. Flood plain 20ne areas SUbject to inundation by a 100 year storm to prevent further encroachment into the flood plain. All improvements from Pierce St. to Florida Ave. essentially function as a unit and should be constructed at one time. If construction is phased, it should begin at the lower end and progress upstream. 1. ThA cnnduit in I-'lorida Av". 5hould be installed to act as an outlet for the Green Gables Park pond and to intercept local drainage. ,. 3. Right-of-way for future improvements should be purchased as soon as practical before cost of property increase. 4. Construction of the new street crossings at Arkansas, Zuni and Xavier should be accompliShed on a high priority since they are the source of major property damage. The entrance to the Sheridan Blvd. culvert should be improved to develop the full capacity of the existing culvert. 4. Improvements of the Green Gables Park detention pond. The detention pond improvements are last in order since the storm sewer in Plorida Ave. must be constructed ~s 4n outlet to the reservoir. 5. In Lakewood, the lower Jewell St. cros.ging, the conduit between Wadsworth Blvd. and Jewell Ave. across the shopping center parking lot, and the Garrison St. crossing should be considered approximately equal priority. WEIR GULCH 6. The following priority for construction of channels in Denver is recommended: 1. Flood plain zOne areas subject to inund4tion by a 100 year storm to prevent future encroachment on the flood plain. A. Tennyson St. to Sheridan Blvd. 2. !legin property acquisition. '" -...~~- -121-