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1 I I I I I I I I I I I I I I I I EXECUTIVE SUMMARY -2- The objectives are all inclusive and range from public concerns such as user safety and rescue compatibility to agencies' concerns such as water availability, cost of construction and future maintenance needs. In addition. because of the growing significance of the South Platte River to recreational interests, objectives relating to fish habitat improvement and economic enhancement of the area have been included. HYDROLOGY The hydrological characteristics of the South Platte River at Union Avenue based upon a study of historic flow rates and coupled with flow projections for the year 2000 (post-Two Forks Dam) shows that adequate water will be available to support the successful operation of a boat chute at Union Avenue. Analysis of the water diversion characteristics of the City of Englewood, coupled with their desire for adequate flushing water, resulted in a finding that the first 100 cfs of flow in the South Platte River could be allocated to the City of Englewood, prior to the boat chute receiving any water, without significantly affecting the hydrological feasibility of the boat chute. SIMILAR PROJECTS An evaluation was made of similar boat chute projects situated on the South Platte River in the Denver metropolitan area, in the City of Boulder, and Pueblo, and in two overseas locations. Advantages and disadvantages of each of the boat chutes, as. well as their individual components, were analyzed as a basis for the engineering plan- ning for the Union Avenue boat chute. For each similar project, features applicable to the Union Avenue boat chute were identified and described.