yellowtail flood pool reallocation study - bureau of reclamation
TRANSCRIPT
Yellowtail Flood Pool Reallocation Study
Yellowtail Flood Pool Reallocation Study
Douglas J. ClemetsonChief, Hydrology Section
U.S. Army Corps of Engineers Omaha, Nebraska
Douglas J. ClemetsonChief, Hydrology Section
U.S. Army Corps of Engineers Omaha, Nebraska
Big Horn River SystemLong-Term Issues Group
January 17, 2008
Big Horn River SystemLong-Term Issues Group
January 17, 2008
Slide 2
US Army Corpsof EngineersOmaha District
Purpose
• Evaluate Change in Flood Reduction Benefits due to Reallocation of Flood Control Storage to Joint Use Storage for Yellowtail Dam and Bighorn Lake
Slide 3
US Army Corpsof EngineersOmaha District
BIGHORN LAKE STORAGE ALLOCATIONDam Crest Elev. 3660.0
Top of Conservation Elev. 3547.00 (493,584 Acre - Feet)
Surcharge - 52,829 Acre-Feet3657 (1,328,360 AF)
Exclusive Flood Control - 258,331 Acre - Feet3640 (1,070,029 Acre - Feet)
Joint Use - 240,342 Acre - Feet3614 (829,687 Acre - Feet)
Top of Dead Elev. 3296.50 (16,008 Acre - Feet)
Active Conservation - 336,103 Acre - Feet
Inactive Conservation - 477,576 Acre - Feet
Dead - 16,008 Acre - Feet
Slide 4
US Army Corpsof EngineersOmaha District
PROPOSED STORAGE ALLOCATIONDam Crest Elev. 3660.0
Top of Conservation Elev. 3547.00 (493,584 Acre - Feet)
Surcharge - 52,829 Acre-Feet3657 (1,328,360 AF)
Exclusive Flood Control - 190,846 Acre - Feet3645 (1,137,514 Acre - Feet)
Joint Use - 307,827 Acre - Feet3614 (829,687 Acre - Feet)
Top of Dead Elev. 3296.50 (16,008 Acre - Feet)
Active Conservation - 336,103 Acre - Feet
Inactive Conservation - 477,576 Acre - Feet
Dead - 16,008 Acre - Feet
Slide 5
US Army Corpsof EngineersOmaha District HECHEC--ResSimResSim
(Reservoir Evaluation System-Simulation)
• Single or Multiple Reservoir Systems• Flood Control• Hydropower• Water Supply (M&I, Irrigation, etc)• Diversions• Navigation• Flow Targets (Max & Min)• POR or Event Simulation
Slide 6
US Army Corpsof EngineersOmaha District Data Requirements
• Daily Streamflow 1967-2007• Daily Reservoir Inflow, Outflow, Storage• Daily Precipitation, Evaporation• Elevation-Area-Capacity Relationships• Spillway & Outlet Rating Curves • Downstream Discharge-Damage Functions• Reservoir Operating Criteria/Storage Zones• Project Design Floods
Slide 7
US Army Corpsof EngineersOmaha District
BillingsBillings
HardinHardin
BighornBighorn
ForsythForsyth
Miles CityMiles City
SidneySidney
Bighorn LakeBighorn Lake
Bigh
orn
Riv
er
Bigh
orn
Riv
erYellowstone River
Yellowstone River
St. XavierSt. Xavier
GlendiveGlendive
Schematic of ResSim Control PointsSchematic of ResSim Control Points
Slide 8
US Army Corpsof EngineersOmaha District ResSim Outputs
• Flows at D/S Control Points• Pool Elevation• Storage• Reservoir Releases
Slide 9
US Army Corpsof EngineersOmaha District
Sample ResSim Graphical OutputSample ResSim Graphical Output
Slide 10
US Army Corpsof EngineersOmaha District
Bighorn River at St. Xavier
0
5000
10000
15000
20000
1995 1996 1996 1997 1998 1999 2000Fl
ow in
CFS
Baseline
Pool Raise
Flow Frequency Curve
0.1199 95 90 80 50 20 10 5
2 105 20 100 1000
10000
100000
1000000
Exceedance Probability
Flow
(cfs
)
expected probcomputed curveupper 90%lower 90%data
Return PeriodFlow Duration
0
4000
8000
12000
16000
0 20 40 60 80 100
Percent of Time Flow Exceeded
Flow
in C
FS
Baseline
Pool Raise
Note: This information is for Illustrative purposes only and does not represent study results
Note: This information is for Illustrative purposes only and does not represent study results
Slide 11
US Army Corpsof EngineersOmaha District
Yellowstone River Bighorn to Miles City
0
2000
4000
6000
8000
10000
12000
14000
40 60 80 100 120 140 160
Discharge in 1,000 CFS
Dam
ge in
$1,
000
RESIDENTIALCOMMERCIALPUBLIC/OTHERCROPNON-CROPTRANSPORTATIONTOTAL
Example Discharge Damage CurvesExample Discharge Damage Curves
Slide 12
US Army Corpsof EngineersOmaha District
Slide 13
US Army Corpsof EngineersOmaha District
Slide 14
US Army Corpsof EngineersOmaha District Schedule
• Jan 08 – Kickoff Meeting• Jun 08 – Baseline • Sep 08 – Pool Raise • Nov 08 – Report
Slide 15
US Army Corpsof EngineersOmaha District Questions??Questions??