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“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 DAMDAM SAFETY ASSURANCE MEGA-PROJECTNATIONAL INVENTORY OF DAMS ID: WV08902
1
Updated 21 November 2016
4,600 sq. mi.
• 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.
WHERE IN THE WORLD IS BLUESTONE? 2
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
216 ANCHORS (PHASE 2B)
PURPOSE: Anchor Dam to
Foundation & Resist Sliding
FISHING PIER (PHASE 2A)
Purpose: Mitigation
ADDITIONAL
MONOLITH (PHASE 2A)
Purpose: Stability
PENSTOCK EXTENTION &
THRUST BLOCK
(PHASES 1 & 2B)
Purpose: Convert Penstocks &
Add Weight to Resist Sliding
C0MPLETED CONSTRUCTION
ACTIVE CONSTRUCTION
STUDY UNDERWAY
BLUESTONE LAKE
NEW RIVER
5
COMPLETE AUXILLARY SPILLWAY
(Phase 3) PURPOSE: Release additional extreme storm
waters to reduce chance of overtopping
PHASE 4: 278 ANCHORSPURPOSE: Anchor Dam to Foundation & Resist Sliding
CONTRACT COMPLETION: Oct 2019
SUPPLEMENTARY StudyPURPOSE: Identify alternative to address erosion of the primary stilling basin
STUDY COMPLETION: 2017 and may result in additional 8-10 years of construction
BLUESTONE DAM: DAM SAFETY ASSURANCE PROJECT
2000-PRESENT
Significant Investment to Reduce Risks of Breach
6
• Awarded 2000 / Completed in 2004
• Features:• Extend Penstock Tunnels and Thrust
Blocks
• Installed 3 Penstock Bulkheads
PHASE 1 BLUESTONE DSA PENSTOCKS
& THRUST BLOCKS
Penstocks Extended thru Thrust
Block with 3 Bulkheads
Penstocks Tunnels being extended
• Awarded 2004 /
Completed in 2007
• Features:
• East Abutment Gravity Wall
• Crest Gate Guide
Extensions
• Bulkhead Spillway Closure
• Trash Chute Closure
• Water Tightness
Modifications
• Access Road Upgrade
• Handicap Fishing Pier
• Main Power & Telephone
Relocations
7
PHASE 2A BLUESTONE DSA MISC. IMPROVEMENTS
Anchor Installation
Post-Tensioning of Anchor• Awarded 2005 /
Completed 2011
• Features:
• 216 High Strength
Steel Strand Anchors
• Complete 3 Thrust
Blocks, Penstock
Extensions, &
Bulkheads
8
PHASE 2B BLUESTONE DSA ANCHORS & COMPLETE
THRUST BLOCKS AND PENSTOCK EXTENSION
Final Bulkhead Placement
9
• Award 2010 /
Completed 2016
• Features:
• Stilling Basin Scour
Pad & Exit Pad
• 2 Training Walls
• 5 Divider Walls
• Baffles
PHASE 3 BLUESTONE DSA PENSTOCK STILLING BASIN
Divider Walls
Baffle Blocks Rebar
Basin Near Complete
Basin Training Walls
10
• Award Sept 2012 /
Completion Oct 2019
• Features:
• 278 Anchors
PHASE 4 BLUESTONE DSA ANCHORS
11BLUESTONE DAM: PROPOSED PHASE 5 INVESTMENT
• Supplementary Study to address scour in primary spillway
• Tentatively Selected Plan
• Remove 1st Stage Baffles
• Install new Super Baffles
• Anchor existing weir
• Replace 2nd Stage Baffles & End Sill
• Additional Anchors in Dam
• Approval 2017
