Spillway Design Issues - Association of State Dam Safety Officials

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Folsom <strong>Dam</strong>, CA<strong>Spillway</strong> Gate Failure
Conventional Solutions• Increase flood storage by:– Raising dam crest– Reducing reservoir level before flood season(non-structural alternative)• Increase spillway capacity by:– Modifying existing spillway– Constructing new spillway• Improve spillway performance
Page 1 and 2: Spillway Design IssuesNational Dam
Page 3 and 4: Problem IdentificationHydrologic de
Page 5 and 6: Problem AssessmentFlood routings ma
Page 7 and 8: Embankment Dam OvertoppingSouth For
Page 9 and 10: Embankment Dam OvertoppingTaum Sauk
Page 11 and 12: Structural InstabilityAustin Dam, P
Page 13 and 14: Spillway Cavitation DamageGlen Cany
Page 15 and 16: Spillway Foundation ErosionHyrum Da
Page 17 and 18: Spillway Channel Toe Erosion
Page 19: Spillway Debris PluggingKerckhoff D
Page 23 and 24: Embankment Dam RaiseLake Sherburne
Page 25 and 26: Concrete Dam RaiseTheodore Roosevel
Page 27 and 28: Spillway Modifications• Increase
Page 29 and 30: Spillway Modifications• Increase
Page 31 and 32: Conventional SolutionsFeasibility D
Page 33 and 34: What if conventional solutionsare f
Page 35 and 36: Concrete DamOvertopping Protection3
Page 37 and 38: Overtopping Protection Benefits•

Spillway Design Issues - Association of State Dam Safety Officials

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