Hylton Portals Closure Project24_Final_Signed.pdf

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2593.5

2598.5

SCALE:1"=2000'

100002000

PROJECT LOCATION MAP

1 Cover Sheet

DESCRIPTION

INDEX OF SHEETS

WISE, VA QUADRANGLE

December 23, 2023

2 Location Map 3 Site Plan & ESC

N

Virginia

Virginia

Maryland

NorthTennessee

Kentucky

West

Carolina

Wise County

GENERAL NOTES

1. Before performing any excavation, contact Miss Utility, (800) 810-7197, to confirm the location of any below ground utility lines in the work area.

2. Before starting the work, contact the Agency for proper clearance and be governed by the Agency's instructions.

3. The contractor is responsible for scheduling, expediting, directing, inspecting and coordinating the work so as to complete the work in the time agreed upon.

4. Work in close cooperation with the Agency and others engaged in the project so that the work will be completed in an orderly manner.

5. Provide temporary supports as may be required during construction to ensure the stability of the proposed excavation.

CLOSURE PROJECT

MINED LAND REPURPOSING

ABANDONED MINED LAND SECTION

WISE, VA

4 Details

HYLTON PORTALS

PROJECT LOCATION

Project

37°00' 04'' N 82° 31' 51''W

2598.5 of3 4

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Legend

2595 Contour

SCALE:1"=30'

3015030

Shed

Access Existing Drainpipe

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Proposed 18" CMPs Driveway

Limit of Disturbance

TWO Proposed 18" Ø HDPE Pipes

RL2

EXISTING DITCH

(to be armored)

GL1

RL1

CEDAR CROFT ROAD

Wet Seal Pipe Discharge Ditch@ Portals

Josey driveway

Josey driveway

SUMP

1. STONE USED SHALL BE VDOT GABION STONE.

2. ALL STONE SHALL BE PLACED A MINIMUM OF 4'

ABOVE THE ROOF OF THE MINE.

3. DRAIN PIPE SHALL BE 6" SDR11 (TYP.)

4. FLANGES SHALL BE MECHANICALLY-FUSED

4' (approximate) ground

Mine Entry

1' MIN 4' MIN

20'

FILTER FABRIC

3. BACKFILL AND

COMPACT THE

EXCAVATED SOIL.

1. SET POSTS 5' APART AND

EXCAVATE A 4" X 4" TRENCH

UPSLOPE ALONG THE LINE OF POSTS.

2. ATTACH THE FILTER FABRIC

TO THE POSTS AND EXTEND IT

INTO THE TRENCH.

Silt Fence N.T.S.

1. EROSION CONTROL BLANKET SHALL BE USED IN THE

GRASS LINED DITCH TO FACILITATE VEGETATIVE GROWTH.

2. EROSION CONTROL BLANKET SHALL BE ENKAMAT 7020W

OR EQUIVALENT.

3. SEE DITCH SCHEDULE FOR GENERAL DIMENSIONS.

3-5

Grassed Lined Ditch N.T.S.

Top Width

VDOT #57 Stone

SECTION VIEW

1. Pipe shall have 1.5' cover minimum.

2. All pipe is to be placed on a >1% grade minimum

3. All Solid HDPE Pipe shall be ADS N-12 Pipe or SDR11

Typical Culvert N.T.S.

Compacted Backfill

1' MIN

4"

MIN

1.5'

MIN

Gabion Portal Closure N.T.S.

GRASS LINED

DITCH

6" SDR 11 (FUSED BOLT FLANGES)

6" Varmint Guard

0.5' MIN

6"-VARMINT GUARD

PROFILE VIEW

1. Pipe shall have grated cover to allow discharge and prevent varmint entry.

2. All pipe discharge is to be placed within ditch.

3. All Solid HDPE Pipe shall be 6-INCH SDR11

4. Flanges shall be mechanically-fused.

Pipe End Treatment

N.T.S.

Wet Seal Pipe from closed portal

A

PROPER PLACEMENT OF STRAW BALE BARRIER IN DRAINAGE WAY

Note: Embed hay bales a minimum of 4 inches.

Prevent Piping Compacted Soil to

Straw Bale Staked and Entrenched

Runoff Sediment Laden

Filtered Runoff or Twine Binding Wire

Points A should be higher than point B

B

A

STRAW BALE DETAIL

NOT TO SCALE

Straw Bales-Barrier N.T.S.

6" SDR 11

GL1 = Grassed Lined Ditch cover above opening

(FUSED BOLT FLANGES)

HDPE N-12

(Mild Gradual Slopes) of4 4

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