3/12/2020
Holding back the Water: Kansas Federal Reservoir Conditions Surrounding the Spring 2019 Floods
Jude Kastens | Chris Shultz Kansas Dam Safety Conference
Topeka | March 11, 2020 Kansas Applied Remote Sensing
Tuttle Creek Reservoir, May 24 Credit: Manhattan Mercury
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(1981-2010)
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There are >150,000 water bodies in Kansas Includes private farm ponds, state & local lakes, federal reservoirs, other
Source: USGS National Hydrography Dataset (count includes water bodies > 0.25 ac)
24 Federal Reservoirs in Kansas Size Range (surface area): 1100 ac (Big Hill) to 16,500 ac (Milford)
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Federal Reservoir Storage in Kansas (est. 2019)
450,000 2.7 million ac‐ft of storage (conservation pool) 400,000
350,000 Water 300,000 Sediment 250,000 Feet
200,000 Acre 150,000
100,000
50,000
0
Data Source: KWO
Federal Reservoir Storage in Kansas (est. 2019)
2,500,000 7.7 million ac‐ft (additional storage in flood pool) 2,000,000
1,500,000 Feet
Flood Storage
Acre 1,000,000 Water Sediment
500,000
0
Data Source: KWO
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Kansas Flooding Spring 2019
• May 2019 was the second wettest month on record for the conterminous U.S. in 125 years (for May and for all months) • With an average of 10.26” received statewide, May 2019 was the wettest month ever for Kansas (previously June 1951) 9
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Kansas Inundation Library Coverage
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Meanwhile…
Source: Kansas Water Office (Chris Shultz) 14
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2019 Flood Storage Max
Milford Tuttle Perry 94% 99% 103%
Wilson 22% Clinton 72% Hillsdale 86% Council Grove Pomona Kanopolis 106% 94% 61% Melvern Marion 91% 108% John Redmond 105% El Dorado 125% Toronto Cheney 121% 120% Fall River 109% Big Hill Elk City 57% 127%
Percent of Flood Pool Used ‐ 10 lakes in the Missouri River Basin 80 70 60 50 40 30 20 Missouri River –KC 10 USGS gage height (flood stage 32ft) 0
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January 1, 2019 Total flood pool used: 4%
Harlan 0%
Tuttle 6% Perry 4% Wilson Milford 1% 4% Clinton 3% Pomona Kanopolis 2% Hillsdale 0% Melvern 11% 7%
February 1, 2019 Total flood pool used: 0%
Harlan 0%
Tuttle 0% Perry 0% Wilson Milford 0% 0% Clinton 0% Pomona Kanopolis 0% Hillsdale 0% Melvern 0% 0%
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March 1, 2019 Total flood pool used: 2%
Harlan 0%
Tuttle 4% Perry 5% Wilson Milford 0% 0% Clinton 0% Pomona Kanopolis 3% Hillsdale 0% Melvern 0% 0%
March 13: Bomb cyclone hits Nebraska
Yutan, NE
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Spencer Dam (Niobrara) fails on March 14
March 15, 2019 Total flood pool used: 10%
Harlan 0%
Tuttle 18% Perry 20% Wilson Milford 2% 4% Clinton 1% Pomona Kanopolis 5% Hillsdale 0% Melvern 0% 1%
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April 1, 2019 Total flood pool used: 23%
Harlan 3%
Tuttle 46% Perry 30% Wilson Milford 0% 20% Clinton 4% Pomona Kanopolis 9% Hillsdale 3% Melvern 2% 5%
April 15, 2019 Total flood pool used: 26%
Harlan 4%
Tuttle 51% Perry 33% Wilson Milford 0% 25% Clinton 6% Pomona Kanopolis 11% Hillsdale 2% Melvern 4% 8%
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May 1, 2019 Total flood pool used: 29%
Harlan 5%
Tuttle 52% Perry 36% Wilson Milford 0% 29% Clinton 12% Pomona Kanopolis 21% Hillsdale 4% Melvern 23% 19%
May 10, 2019 Total flood pool used: 43%
Harlan 6%
Tuttle 65% Perry 61% Wilson Milford 3% 41% Clinton 31% Pomona Kanopolis 61% Hillsdale 15% Melvern 42% 58%
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First real‐time flood map, Lower Neosho (5/18)
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First flood map, Salina area (5/20)
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May 20, 2019 Total flood pool used: 48%
Harlan 6%
Tuttle 72% Perry 70% Wilson Milford 5% 52% Clinton 35% Pomona Kanopolis 56% Hillsdale 16% Melvern 36% 52%
Kansas River at Lawrence 41,000 cfs
May 25, 2019
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First flood map, Emporia area (5/21)
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Map update for Lower Neosho around Burlington, including planned release from John Redmond (5/22)
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May 26, 2019
May 30, 2019 Clinton Lake
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June 1, 2019 Total flood pool used: 75%
Harlan 14%
Tuttle 99% Perry 96% Wilson Milford 20% 84% Clinton 58% Pomona Kanopolis 94% Hillsdale 61% Melvern 85% 91%
June 1, 2019 Perry Lake, 10000 cfs
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June 10, 2019 Total flood pool used: 68%
Harlan 14%
Tuttle 83% Perry 80% Wilson Milford 21% 83% Clinton 60% Pomona Kanopolis 94% Hillsdale 55% Melvern 85% 90%
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June 20, 2019 Total flood pool used: 64%
Harlan 16%
Tuttle 81% Perry 80% Wilson Milford 20% 83% Clinton 60% Pomona Kanopolis 68% Hillsdale 43% Melvern 68% 66%
July 1, 2019 Total flood pool used: 69%
Harlan 19%
Tuttle 87% Perry 88% Wilson Milford 20% 89% Clinton 72% Pomona Kanopolis 66% Hillsdale 37% Melvern 79% 68%
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Clinton Lake ‐ Bloomington State Park
July 2, 2019
July 2, 2019
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July 2, 2019
Tuttle Creek Reservoir, 13000 cfs
July 5, 2019
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July 10, 2019 Total flood pool used: 63%
Harlan 26%
Tuttle 81% Perry 79% Wilson Milford 19% 81% Clinton 72% Pomona Kanopolis 54% Hillsdale 28% Melvern 71% 58%
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July 20, 2019 Total flood pool used: 53%
Harlan 37%
Tuttle 67% Perry 61% Wilson Milford 17% 68% Clinton 64% Pomona Kanopolis 43% Hillsdale 17% Melvern 57% 42%
August 1, 2019 Total flood pool used: 40%
Harlan 35%
Tuttle 49% Perry 54% Wilson Milford 12% 50% Clinton 55% Pomona Kanopolis 24% Hillsdale 6% Melvern 38% 23%
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September 1, 2019 Total flood pool used: 45%
Harlan 28%
Tuttle 53% Perry 72% Wilson Milford 11% 52% Clinton 63% Pomona Kanopolis 38% Hillsdale 19% Melvern 39% 29%
October 1, 2019 Total flood pool used: 33%
Harlan 25%
Tuttle 49% Perry 41% Wilson Milford 2% 47% Clinton 35% Pomona Kanopolis 7% Hillsdale 3% Melvern 11% 9%
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October 25, 2019 Milford Lake
November 1, 2019 Total flood pool used: 30%
Harlan 21%
Tuttle 43% Perry 42% Wilson Milford 0% 43% Clinton 32% Pomona Kanopolis 5% Hillsdale 0% Melvern 5% 5%
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December 1, 2019 Total flood pool used: 7%
Harlan 10%
Tuttle 8% Perry 12% Wilson Milford 0% 5% Clinton 9% Pomona Kanopolis 5% Hillsdale 0% Melvern 5% 5%
Mapping Inundation Duration
• Collaboration with Kansas Forest Service
• Plan to map all KS federal reservoirs that experienced sustained high water 56
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Tree Height (from LiDAR) in purple
2019 NAIP Imagery
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2019 NAIP Imagery
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2019 NAIP Imagery
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2019 NAIP Imagery
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Thanks for Listening… Any Questions?
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