BLUESTONE DAM REDUCING FLOOD RISKS 23 JUNE 2016 works/Bluestone... · USACE DAMS: REDUCING FLOOD...
8
217 217 217 200 200 200 255 255 255 0 0 0 163 163 163 131 132 122 239 65 53 110 135 120 112 92 56 62 102 130 102 56 48 130 120 111 237 237 237 80 119 27 252 174 .59 “The views, opinions and findings contained in this report are those of the authors(s) and should not be construed as an official Department of the Army position, policy or decision, unless so designated by other official documentation.” BLUESTONE DAM REDUCING FLOOD DAMAGES 23 JUNE 2016 EVENT Updated 21 November 2016 1 [email protected]
Transcript of BLUESTONE DAM REDUCING FLOOD RISKS 23 JUNE 2016 works/Bluestone... · USACE DAMS: REDUCING FLOOD...
217217217
200200200
255255255
000
163163163
131132122
2396553
110135120
1129256
62102130
1025648
130120111
237237237
8011927
252174.59
“The views, opinions and findings contained in this report are
those of the authors(s) and should not be construed as an
official Department of the Army position, policy or decision,
unless so designated by other official documentation.”
BLUESTONE DAM REDUCING FLOOD DAMAGES
23 JUNE 2016 EVENTUpdated 21 November 2016
1
4,600 sq. mi.
WHERE IN THE WORLD IS BLUESTONE? 2
Bluestone Dam
• Bluestone Dam is on the New River, just upstream
of the Greenbrier River.
• Bluestone Dam controls a watershed nearly the
size of Connecticut
• The New River is renamed the Kanawha River at
Gauley Bridge, WV.
• Bluestone works with Summersville & Sutton
Dams to reduce flood risk along the New &
Kanawha River valleys all the way to Point
Pleasant and down the Ohio River.
• ½ the water that passes Charleston, WV comes
through Bluestone Dam.
WHAT IS BLUESTONE DAM? 3
• Bluestone Dam is a Straight Concrete Gravity Dam
• Bluestone Dam is approximately 165 feet high
• Bluestone Dam is nearly ½ mile long
• Bluestone Dam impounds an 11 mile long lake on the New River
WHERE DOES BLUESTONE DAM REDUCE FLOOD RISK? 4
$5.9B Cumulative Damages Prevented Though-out the New & Kanawha River Valleys
Hinton Montgomery Industry
Charleston John Amos Pt. Pleasant
And beyond on the Ohio River..
to to
to to
5USACE DAMS: REDUCING FLOOD HAZARDS
23 JUN 2016 STORM EVENT
23 Jun 2016
Up to 10 in of
Rain in 24 hrs
• 23 June 2016: Up to 10” rain fell across central WV
• Most rain fell downstream of three USACE Dams
• Even so, all three dams operated and reduced
nearly $180.4M in additional damages
• Almost no rain fell upstream of Bluestone Dam
• However, by going to minimum outflow and
temporarily storing additional waters, Bluestone
Dam was able to reduce additional damages by
approximately $4.2M
Bluestone
Dam
Summersville
Dam
Sutton
Dam
BLUESTONE DAM OPERATING FOR 23 JUNE 2016 EVENT 6
Bluestone Lake
designed to
fluctuate
114 feet to
temporarily
store flood
waters
Seasonal
Lake
BLUESTONE DAM OPERATING FOR 23 JUNE 2016 EVENT 7
Bluestone Lake
designed to
fluctuate
114 feet to
temporarily
store flood
waters
Close sluice gates
and
reduce outflow
Temporarily store
additional water to
reduce downstream
flood risks
