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Applications of the NWS FLDWAV Model. Teton Dam Failure on Snake River.

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Presentation on theme: "Applications of the NWS FLDWAV Model. Teton Dam Failure on Snake River."— Presentation transcript:

1 Applications of the NWS FLDWAV Model

2 Teton Dam Failure on Snake River

3 Teton Dam Failure Specifications Dam Height: 300 ft Crest Length: 3,000 ft Storage behind dam: 250,000 acre-ft Dam crest width: 35 ft Slope of upstream dam face: 1:2 Slope of downstream dam face: 1:2.5 Failure occurred June 6, people killed 25,000 people homeless $400M damage Peak Outflow: 1.6 – 2.8 million cfs (2.3M best estimate) Breach shape – trapezoid. Max width 500 ft; side slope 1 : 0.5 Reservoir depleted in 5 hrs

4 Outflow Hydrograph and Flooded Area Downstream of Teton Dam

5 Teton Dam Failure

6 Susquehanna River System

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9 Lower Mississippi River System

10 Lower Mississippi River BONNET CARRE DIVERSION RED RIVER LDG (MI 302.4) BATON ROUGE DONALDSONVILLE RESERVE NEW ORLEANS CHALMETTE PT A LA HACHE VENICE (MI 10.7) MORGANZA DIVERSION MISSISSIPPI GAGING STATION AND COMPUTATIONAL NODE LATERAL INFLOW OR OUTFLOW

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