rock cut-slope design and construction auxiliary spillway ... 2/mic… · from hoek, e. and bray,...
TRANSCRIPT
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One Corps, One Regiment, One Team
Rock CutRock Cut--Slope Slope Design and ConstructionDesign and Construction
Auxiliary Spillway andAuxiliary Spillway andRelocation of SR 3051 & 302 Relocation of SR 3051 & 302
Dewey Lake, KYDewey Lake, KY
Michael Nield Michael Nield -- GeologistGeologist
Geohazards in Transportation in the Appalachian RegionGeohazards in Transportation in the Appalachian Region
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One Corps, One Regiment, One Team
Four Main Topics of DiscussionFour Main Topics of Discussion
Auxiliary Spillway Auxiliary Spillway –– Dewey Lake, KYDewey Lake, KY
1. Project Description1. Project Description2. Site Geology2. Site Geology3. Rock Cut3. Rock Cut--Slope DesignSlope Design4. Construction Challenges4. Construction Challenges
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject Description
DEWEY DAM
Located in Eastern Kentucky
Dam completed in 1949
Rolled earth embankment dam with a tunnel type outlet works in the left abutment.
Huntington District
SR 302
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject Description
Hydrologic Deficiencies at Dewey Dam
Dam Safety Assurance Program identified deficiencies with the existing spillway during predicted floods, resulting in a high risk of dam failure with catastrophic consequences downstream.
Correction:Raise the Dam crest (future work)Raise crest of Brandy Keg Dike (this contract)Restrict flows to the Existing Spillway (this contract)Construct 129’ wide Auxiliary Spillway (this contract) Relocate State Routes 302 and 3051 (this contract)
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject Description
Project Features Impacted by Hydrologic Deficiencies
Dam
Auxiliary Spillway & St. Rt. 3051 & 302
Brandy Keg Dike
Existing Spillway
Relocation of St. Rt. 302
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject DescriptionExisting Spillway
Existing spillway was not designed to withstand predicted flows.
Constructed horizontal restrictors, which reduced the spillway width from 60 feet to 43 feet.
Rock excavation by mechanical (non-explosive) methods.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject Description
Brandy Keg Dike
Raised Brandy Keg Dike approximately 3 feet.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject Description
Relocation of State Route 302
Design Effort
State Route 302 was relocated as a result of the construction for the Auxiliary Spillway.
Design was performed by Fuller Mossbarger Scott & May Engineers with close cooperation by the Kentucky Department of Transportation and the Corps of Engineers.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYProject DescriptionProject DescriptionAuxiliary Spillway
Spoil Site
Spoil Sites
Excavation for Auxiliary Spillway
Dam
• Constructed a 129-foot wide Auxiliary Spillway through bedrock.
• Relocate State Route 3051 and a portion of State Route 302.
• SUBJECT OF THIS PRESENTATION
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One Corps, One Regiment, One Team
Four Main Topics of DiscussionFour Main Topics of Discussion
1. Project Description1. Project Description2. Site Geology2. Site Geology3. Rock Cut3. Rock Cut--Slope DesignSlope Design4. Construction Challenges4. Construction Challenges
Auxiliary Spillway Auxiliary Spillway –– Dewey Lake, KYDewey Lake, KY
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite GeologyExisting and Field Data
Geologic Quadrangle Map
Coal Mine Adits
Auxiliary Spillway
Joint Measurements from Outcrops
Coal Mine Adit
Original SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite GeologyExploratory Drilling
Boring Location Plan
• 2 Angled Borings to Obtain Discontinuity Orientations
Proposed SpillwayFloor & Center Line
• 2 4-inch Diameter Core Borings, Pressure Tested at Sill Location • 4 Borings for Highway Relocation
• Total of 17 Borings (15 2-inch diameter borings)
Small Coal Mine Adits
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
Lithology
700
800
900
PEN
NSY
LVAN
IAN
AG
EBR
EATH
ITT
FO
RM
ATIO
N
Elev. 650
850
750
Geologic Column
WEATHERED SHALE AND CLAYSTONE: reddish brown to dark gray, soft, clayey, occasionally broken or weathered.
Low percentage of core recovery (30 -90).
Low RQD (30 – 75).
Core Sample
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
Lithology
700
800
900
PEN
NSY
LVAN
IAN
AG
EBR
EATH
ITT
FO
RM
ATIO
N
Elev. 650
850
750
Geologic Column Core Sample
SHALE with interbedded siltstone: gray to dark gray, soft to moderately hard.
High percentage of core recovery (90–100).
Medium range RQD (65 – 85)
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
Lithology
700
800
900
PEN
NSY
LVAN
IAN
AG
EBR
EATH
ITT
FO
RM
ATIO
N
Elev. 650
850
750
Geologic Column Core Sample
SANDSTONE: light gray, moderately hard, fine to medium grained, micaceous.
High percentage of core recovery (95 –100).
Good RQD (95 - 100)
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
Lithology
700
800
900
PEN
NSY
LVAN
IAN
AG
EBR
EATH
ITT
FO
RM
ATIO
N
Elev. 650
850
750
Geologic Column Core Sample
COAL SEAMS: black, moderately hard, slightly to severely broken.
0.8’ to 2.7’ thick.
Core loss common.
Poor RQD
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
Geologic Cross Sections
Geologic Cross Section Location Plan
Proposed SpillwayFloor & Center Line
Sill LocationStation 15+33
Upstream of SillStation 13+00Downstream of Sill
Station 19+00
Flow
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
2+00 1+00 2+001+00CL
700
3+00
800
900 900
800
700
Geologic Cross Section
Station 15+33 – Spillway Crest
C-91-9
C-91-7
C-91-6C-91-8
C-91-5
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/Right
WEATHERED SH & CLS
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
2+00 1+00 2+001+00CL
700
800
900 900
800
700
Station 13+00 (Upstream of Sill)
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/Right
C-91-4 C-91-3C-91-2
Geologic Cross Section
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYSite GeologySite Geology
2+00 1+00 2+001+00CL
700
800
900 900
800
700
Geologic Section - Station 19+00 (Downstream of Sill)
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/Right
C-91-12C-91-11 C-91-10
Geologic Cross Section
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One Corps, One Regiment, One Team
Four Main Topics of DiscussionFour Main Topics of Discussion
1. Project Description1. Project Description2. Site Geology2. Site Geology3. Rock Cut3. Rock Cut--Slope DesignSlope Design4. Construction Challenges4. Construction Challenges
Auxiliary Spillway Auxiliary Spillway –– Dewey Lake, KYDewey Lake, KY
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Rock Cut Slope Design Topics
1. Bench and Slope Design1. Bench and Slope Design
2. Wedge/Block Analysis2. Wedge/Block Analysis
3. Rock Fall Analysis3. Rock Fall Analysis
4. Spillway Sill Design4. Spillway Sill Design
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope DesignBench and Slope Design
Relatively flat-lying sedimentary rock, with interbedded lithologies that have varying resistance to weathering and high angled joints.
The cut slope design needs to minimize the effects of differential weathering to reduce wedge/block failures and rock fall hazards.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
2+00 1+00 2+001+00CL
700
3+00
800
900 900
800
700
34
18’ Bench at Elev. 800 on Coal Seam
4
12
12
1 18’ Bench at Base of Sandstone
18’ Bench on Coal Seam
SR 3051 & Spillway Crest Elev. 866
Spillway Sill Foundation Elev. 688
Bench and Slope Design
Geologic Section - Station 15+33 – Spillway Crest
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/Right
766 763
725 722
WEATHERED SH & CLS
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
2+00 1+00 2+001+00CL
700
800
900 900
800
700
Geologic Section - Station 13+00 (Upstream of Sill)
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/RightBench and Slope Design
1 18’ Bench at Base of Sandstone4
720 7171
2SR 302
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
2+00 1+00 2+001+00CL
700
800
900 900
800
700
Geologic Section - Station 19+00 (Downstream of Sill)
SOILSHALE & SILTSTONESANDSTONECOAL SEAM
South/Left North/RightBench and Slope Design
14
701
18’ Bench at Base of Sandstone
12
73018’ Bench on Coal Seam
12
SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Bench and Slope Design
800
700
800
700
14+00 16+0012+00 18+00 20+00 22+00
Limits of Excavation
Spillway Floor Spillway Sill
2.4% Slope on Coal Seams2.4% Slope atBase of Sandstone
3% Slope on Coal Seam
4V:3H2V:1H
4V:1H2V:1H 2V:1H
Elevation View – South/Left Spillway Wall
800
700
800
700
14+0016+00 12+0018+0020+0022+00
West
Elevation View – North/Right Spillway Wall
2V:1H
4V:1H2V:1H
2V:1H
Flow
Flow
WestEast
East
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Plan View
Bench and Slope Design
RelocatedState Route
3051
RelocatedState Route
302
Limits of Excavation
Spillway Sill
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One Corps, One Regiment, One Team
Wedge/Block Analysis - Four Main Failure Modes
From Hoek, E. and Bray, J.W. “Rock Slope Engineering” 1981.
Circular Failure – soil-like failure, unlikely to occur at this project, will not be discussed at this time.
Planar Failure – common with joints that are parallel to cut-slope some failures may be blast induced
Wedge Failure – could be detrimental, large volume of rock.
Toppling Failure – similar results as planar failure, unlikely to occur at this project, will not be discussed at this time.
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
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One Corps, One Regiment, One Team
Wedge/Block Analysis - Four Main Failure Modes
Planar Failure – common with joints that are parallel to cut-slope some failures may be blast induced
Wedge Failure – could be detrimental, large volume of rock.
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Joint Analysis
Simplified Joint RosetteJoint Rosette
Joint measurements obtained from outcrops and angled exploratoryborings.Typical joint surface has a planar shape with smooth texture, occasionally iron stained or slightly open.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Joint Analysis
Stereographic Projection of Joint Measurements – Pole Plot
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Joint Analysis
Stereographic Projection of Joint Measurements – Contoured Plot of Poles
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Joint Analysis
Stereographic Projection of Joint Measurements – Planes Representing Joint Sets
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One Corps, One Regiment, One Team
Sandstone Phi Angle = 30
1/4:1 Slope – North Wall
Wedge Sliding Zone
Joint Intersection
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Wedge Failure Analysis
Stereographic Projection of Planes used for Wedge Analysis
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge Analysis 1/4:1 Slope South Wall Sandstone
Wedge Analysis 1/2:1 Slope South Wall
Shale
Wedge Analysis 1/4:1 Slope North Wall Sandstone
Wedge Analysis 1/2:1 Slope North Wall Shale
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One Corps, One Regiment, One Team
Sandstone Phi Angle = 30 1/4:1 Slope – North Wall
Planar Sliding Zone
Daylight Envelope
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Wedge/Block Analysis – Planar Failure
Stereographic Projection of Poles used for Planar Analysis
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Planar Analysis 1/4:1 Slope South Wall Sandstone
Planar Analysis 1/2:1 Slope South Wall
Shale
Planar Analysis 1/4:1 Slope North Wall Sandstone
Planar Analysis 1/2:1 Slope North Wall Shale
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
5300.050.870.050.37SLOPES IN SHALE/SILTSTONE
5250.050.870.050.37SLOPES IN SANDSTONE
5250.020.850.020.35ALL BENCHES
std. dev.meanstd. dev.meanstd. dev.mean
Friction Angle (Phi angle)
Coefficient of Tangential Restitution
Coefficient of Normal Restitution
SURFACE AND MATERIALS
Rock Fall Analysis – Input ParametersValues are subjective, derived from published tables.
Computer programs included Colorado Rockfall Simulation and RocFall.
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Rock Fall Analysis
Boulder Origin at Top of Cut Slope
Boulder Origin
Boulder Trajectory
Boulder Origin at Bench Elev. 800
Boulder Origin
Boulder Trajectory
Slope was Redesign
SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Rock Fall Analysis
Boulder Origin at Bench Elev. 766
Boulder Origin
Boulder Trajectory
Boulder Origin at Bench Elev. 725
Boulder Origin
Boulder Trajectory
SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Plan View
Spillway Sill
Spillway Sill Design
SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Spillway Sill – Bedrock Parameters
Cross Section – Spillway Sill – Normal Condition
150
160
pcf
Unit Weight
Allowable Bearing Pressure
32095175501525LOWER SANDSTONE
90651030025LOWER SHALE
psipsipsidegreepsidegree
Anchor Bond
Strength
Cross Bed Shear Strength
phi c
Sliding Friction Strength
phi cLITHOLOGIC
MEMBER
Lower Shale Member
Lower Sandstone Member
Flow
EL. 676
EL. 678
Crest EL. 688Concrete Spillway Sill690
680
670
660
690
680
670
66037’ Long, 1¼” Diameter
Threadbar Anchor, Tensioned to 112 kips
4” Diameter Hole
700
710
700
710
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Spillway Sill Design – Headcut Erosion
Cross Section – Spillway Sill – Flood Condition
Lower Shale Member
Lower Sandstone Member
Flow
Rock Anchor
EL. 676
Spillway Sill Crest EL. 688690
680
670
660
690
680
670
660
700
710
700
710
10’ Shale Removed by Headcut Erosion
Flood Crest EL. 708
2’ Erosion of Shale U/SEL. 686
EL. 678
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYRock Cut Slope DesignRock Cut Slope Design
Spillway Sill Design
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One Corps, One Regiment, One Team
Four Main Topics of DiscussionFour Main Topics of Discussion
1. Project Description1. Project Description2. Site Geology2. Site Geology3. Rock Cut3. Rock Cut--Slope DesignSlope Design4. Construction Challenges4. Construction Challenges
Auxiliary Spillway Auxiliary Spillway –– Dewey Lake, KYDewey Lake, KY
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction ChallengesConstruction Contract
• PRIME CONTRACTOR: Tab Construction Co. of Canton, Ohio
• DRILLING AND BLASTING SUBCONTRACTOR: Hilltop Energy Inc. of Mineral City, Ohio
• CONSTRUCTION DURATION: Approximately Two Years from August 2000 to September 2002.
• FINAL EXCAVATION QUANTITIES: Rock Excavation: 677,000 cubic yards Structural (Rock/Concrete) Excavation: 1,000 cubic yards Common (Soil) Excavation: 306,000 cubic yards
• FINAL CONSTRUCTION CONTRACT COST: $12.8 Million Dollars
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Modifying Rock-Cut Slopes
Removal of Slip-Prone Soil Initial Rock Cut
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Blasting Vibration Control
Location of Homes
Blasting for Auxiliary Spillway
SR 3051 & 302
Perched Boulders
Homes
Blasting Within 790 Feet of Boulders and 1,000 Feet From Homes
Restricted Peak Particle Velocity to 1.5 in/sec at 200 Feet From Blast
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Blasting Vibration Control
Large Boulders Located on Ridge Line and Perched Above Homes
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction ChallengesDrilling And Blasting
Pre-Split Drilling 18” to 30” Center to Center Loading Production Shot
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Drilling And Blasting
Production Blast Production Blast
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction ChallengesExcavation and Spoil Sites
Rock Excavation Spoil Sites
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Maintaining Traffic and Utilities During Excavation
View of South/Left Spillway Wall Spillway Sill
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Eliminated Upper Rock Anchor
Recessed Concrete
Low Strength Concrete
Modifications to Correct for Future Erosion of Shale
Over Excavation of Spillway Sidewalls
Spillway Sill
SR 3051
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction Challenges
Final Product
South/Left Spillway Wall as Viewed from Upstream
North/Right Spillway Wall as Viewed from Upstream
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One Corps, One Regiment, One Team
Auxiliary Spillway Auxiliary Spillway –– Dewey Dam, KYDewey Dam, KYConstruction ChallengesConstruction ChallengesFinal Product
Upstream of Spillway Route 302 Transition
Auxiliary Spillway Viewed from Downstream
Relocated SR 302
Relocated SR 3051
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One Corps, One Regiment, One Team
Questions & DiscussionQuestions & Discussion
Contact Information: Contact Information: Michael Nield Michael Nield Phone: (304) 529Phone: (304) 529--5056 5056 EE--mail: [email protected] mail: [email protected]
Auxiliary Spillway Auxiliary Spillway –– Dewey Lake, KYDewey Lake, KY