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<br />Photographs <br />51A. <br />5~. <br />52. <br />53. <br />54. <br /> <br />55-70. <br />55. <br /> <br />56. <br /> <br />57. <br /> <br />58. <br />59. <br />60. <br />61. <br />62. <br />63. <br />64. <br /> <br />Table 1. <br /> 2. <br /> 3. <br /> 4. <br /> 5. <br /> 6. <br /> 7. <br /> 8. <br /> 9. <br /> 10. <br /> <br />CONTENTS <br /> <br />65. <br />66. <br />67. <br />68. <br />69. <br />70. <br /> <br />45-54.--Continued: <br />The Ponderosa Lodge, which was destroyed by the flood, at <br />river mile 9.9 on the Fall River--------------------------- <br />The Ponderosa Lodge as rebuilt after the flood, from the <br />same perspective as figure 51A----------------------------- <br />Debris jam on the upstream side of Elkhorn Avenue at river <br />mile 11.8 along the Fall River in Estes Park--------------- <br />High-water lines on buildings along the Fall River at Estes <br />Park------------------------------------------------------- <br />View upstream from 01ympu5 dam and Lake Estes, containing <br />the floodwaters (aerial)----------------------------------- <br />Graphs showing: <br />Lawn Lake dam embankment cross section on the Roaring River <br />at river mile 0.0------------------------------------------ <br />Lawn Lake dam cross section of breach (right side) on the <br />Roaring River at river mile 0.0---------------------------- <br />Lawn Lake dam cross section of breach (left side) on the <br />Roaring River at river mile 0.0---------------------------- <br />Roaring River cross section at river mile 0.55--------------- <br />Roaring River cross section at river mile 1.50--------------- <br />Roaring River cross section at river mile 3.83--------------- <br />Fall River cross section at river mile 5.36------------------ <br />Fall River cross section at river mile 5.78------------------ <br />Fall River cross section at river mile 6.50 (site 1)--------- <br />Cascade Lake dam cross sections on the Fall River at river <br />mile 6.67 (site 2)----------------------------------------- <br />Fall River cross section at river mile 7.68 (site 3)--------- <br />Fall River cross section at river mile 7.74------------------ <br />Fall River cross section at river mile 8.78------------------ <br />Fall River cross section at river mile 10.28 (site 4)-------- <br />Fall River cross section at river mile 11.45 (site 5)-------- <br />Big Thompson River cross sectiQn at river mile 12.5 (site 6)- <br /> <br />TABLES <br /> <br />Geotechnical characteristics of the Lawn Lake dam earthfill---- 11 <br />Flood stages and discharges in Larimer County for the flood <br />of July 15, 1982, and during previous maximum floods--------- 22 <br />Storage capacity and other pertinent information for Lawn Lake <br />and Cascade Lake--------------------------------------------- 24 <br />Peak flow data at selected cross 5ections---------------------- 27 <br />Discharge-frequency summary for the Roaring River at mouth and <br />the Big Thompson River at Estes Park------------------------- 28 <br />Time of flooding from the failures of Lawn Lake dam and <br />Cascade Lake dam, July 15, 1982------------------------------ 32 <br />Channel conditions, Roaring River------------------------------ 50 <br />Field-selected and calibrated model-composite Manning's n- <br />values------------------------------------------------------- 70 <br />Summary of dam-break model 5imulation-------------------------- 71 <br />Comparison of model results of a hypothetical breach width of <br />25 feet to the actual breach width of 55 feet---------------- 75 <br /> <br />vii <br /> <br />Page <br /> <br />82 <br />82 <br /> <br />83 <br /> <br />83 <br /> <br />84 <br /> <br />94 <br /> <br />95 <br /> <br />96 <br />97 <br />98 <br />99 <br />100 <br />101 <br />102 <br /> <br />103 <br />104 <br />105 <br />106 <br />107 <br />108 <br />109 <br /> <br />Page <br />