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I I I I I I I I I I I I I I I I I I I TABLE III-l TOTAL RAINFALL DEPTHS 9 discharge for given flood volume. This required that the sub- basin characteristics, including the two empirical coefficients, and the rainfall data be used in a computer program to obtain a total of 192 hydrographs for the 24 hydrologic points. Rainfall Depth in Inches 2-Year 5-Year 10-Year 100-Year Hydrologic Frequency Frequency Frequency Frequency Point 80-l~in. 100-Min. l20-Min. l80-Min. Designation Duration Duration Duration Duration (1) (2) (3) (4) (5) Lower Lakewood Gulch 101 0.79 1. 30 1. 83 2.75 102 0.79 1. 30 1. 83 2.75 103 0.79 1. 30 1.83 2.75 104 0.77 1.35 1.91 2.82 Central Lakewood Gulch 105 0.77 1.35 1.91 2.82 106 0.77 1.35 1. 91 2.82 107 0.77 1. 35 1. 91 2.82 108 0.77 1.35 1.91 2.82 109 0.77 1. 35 1.91 2.82 Upper Lakewood Gulch 110 0.75 1.35 1.90 2.80 111 0.75 1. 35 1. 90 2.80 112 0.75 1. 35 1. 90 2.80 113 0.75 1. 35 1. 90 2.80 114 0.72 1. 32 1.85 2.75 Lower McIntyre Gulch 400 0.75 1.35 1. 90 2.80 401 0.75 1. 35 1. 90 2.80 402 0.75 1. 35 1. 90 2.80 403 0.75 1.35 1. 90 2.80 404 0.75 1. 35 1.90 2.80 Upper McIntyre Gulch 405 0.72 1.32 1. 85 2.75 406 0.72 1. 32 1. 85 2.75 500 0.72 1. 32 1.85 2.75 Dry Gulch 200 0.77 1. 35 1.91 2.82 South Lakewood Gulch 300 0.75 1.35 1.90 2.80 A typical print-out of the numerical data from the computer program developed for the Lakewood Gulch and McIntyre Gulch study is shown on Table III-3 which follows. The balance of the hydro graph data that was prepared is not included in this report because of its bulk. Tables III-4 and III-5 which follow give waterway, hydrologic point number, drainage area, peak flood flows, and flood volumes for the 2, 5, 10 and 100-year frequency floods under existing conditions and estimated future development conditions, respectively.