04_Project_Drawings_Beal_WRIS_2021.pdf

BEAL MOUNTAIN MINE

2021 WASTE ROCK SYSTEM IMPROVEMENTS

BEAVERHEAD-DEERLODGE NATIONAL FOREST

Sheet Number Sheet Index

Sheet Title

COVER & DRAWING INDEX

ESTIMATED QUANTITIES

WASTE ROCK DRAIN MODIFICATIONS PLAN

G1 G2 C1 C2 C3

WASTE ROCK DRAIN MODIFICATIONS PIPE AND VAULT DETAILS

DEWATERING PLAN

APPROVED BY:

R1 DIRECTOR OF ENGINEERING DATE

FOREST SUPERVISOR DATE

ON SCENE COORDINATOR DATE

RECOMMENDED BY:

DISTRICT RANGER DATE

FOREST ENGINEER DATE

GINEER

FAIRMONT HOT

D E E R Sf��� RESORT

LOCATION MAP

2�USDA

825 WEST CUSTER AVE.

HELENA, MONTANA 59602

PHONE: 406--443-5210 FAX: 406--442-7182

www.tetratech.com

PROJECT LOCATION: CLIENT INFORMATION:

BEAL MOUNTAIN MINE

SILVER BOW COUNTY, MONTANA

USDA FOREST SERVICE

NORTHERN REGION

BEAVERHEAD-DEERLODGE NATIONAL FOREST

Tt PROJECT No.:

117-0524307

PROJECT DESCRIPTION / NOTES:

WASTE ROCK SYSTEM IMPROVEMENTS

ISSUED:

ISSUED FOR CONSTRUCTION 2/1/2021

VICINITY MAP:

MONTANA

CLIENT PROJECT No.:

G1 www.tetratech.com

Project No.:

MARK DATE DESCRIPTION BY

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Designed By:

Bar Measures 1 inch

117-0524307

LDC

DAG

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C o p y r i g h t

T e t r a

T e c h

USDA FOREST SERVICE - NORTHERN REGION

BEAVERHEAD - DEER LODGE NATIONAL FOREST

BEAL MOUNTAIN MINE

2021 WASTE ROCK SYSTEM IMPROVEMENTS

ESTIMATED

QUANTITIES

825 W. Custer Ave.

Helena, Montana 59602

PHONE: (406) 443-5210 FAX: (406) 442-7182

0 2/1/21 ISSUED FOR CONSTRUCTION LDC

2021 BEAL MINE WASTE ROCK SYSTEM IMPROVEMENTS

ESTIMATED QUANTITIES

Bid Item No. Description Method of Measure Units

Estimated Quantity

15101 Mobilization LSQ LS All 60401a Install 60" Dia. Valve Vault LSQ LS All 60401b Install 72" Dia. Flow Meter Vault LSQ LS All

20301 Remove and Dispose Existing Buried Valve LSQ LS All 61102 6-inch diameter SDR 17 HDPE Buried Pipeline AQ LF 45 15713 Erosion Control Plan LSQ LS All

PROPOSED VAULT WITH

SAMPLE PORT AND

THREE 6" BUTTERFLY VALVES

(SEE DETAIL 1, SHEET C2)

GERMAN GULCH CREEK

EXISTING CULVERT

ROAD

REMOVE AND DISPOSE

OF EXISTING VALVE

AND DI PIPE

EXISTING CAST IRON PIPELINE

TO BY-PASS OVERFLOW

GALLERIES

TOE DRAIN

SPR-10A

6" HDPE

6" HDPE

PROPOSED VAULT WITH

FLOW METER, FILTER, AND

THREE 6" BUTTERFLY VALVES

(SEE DETAIL 2, SHEET C2)

EXISTING VAULT WITH

6" BUTTERFLY VALVE

AND PRESSURE REDUCER

EXACT ROUTE OF THIS

PIPELINE IS UNKNOWN

6" SDR-17 HDPE

6" SDR-17 HDPE

S

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PROPOSED PIPE

SACRIFICIAL VALVE

(NOTE 2)

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Project No.:

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Bar Measures 1 inch

117-0524307

LDC

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C1

C o p y r i g h t

T e t r a

T e c h

USDA FOREST SERVICE - NORTHERN REGION

BEAVERHEAD - DEER LODGE NATIONAL FOREST

BEAL MOUNTAIN MINE

2021 WASTE ROCK SYSTEM IMPROVEMENTS

WASTE ROCK DRAIN MODIFICATIONS

PLAN

825 W. Custer Ave.

Helena, Montana 59602

PHONE: (406) 443-5210 FAX: (406) 442-7182

0 2/1/21 ISSUED FOR CONSTRUCTION LDC

NOTES

1. LOCATIONS OF VAULTS SHOWN ARE CONCEPTUAL. EXACT

LOCATIONS TO BE STAKED BY THE ENGINEER.

2. SEE DEWATERING PLAN FOR A DESCRIPTION OF THE SACRIFICIAL

VALVE. SACRIFICIAL VALVE, IF LEFT IN PLACE PERMANENTLY MUST

BE COVERED BY A CAST IRON VALVE BOX, RISER, & COVER.

EXISTING VALVE

AND DI PIPE

BILCO RV66 ACCESS COVER

CAST IN SLAB OR APPROVED

EQUIVALENT

STANDARD PRECAST STRAIGHT

MANHOLE WITH MONOLITHIC BASE

SLAB, COVER SLAB AND STAIRS

EXISTING 6"

DIA SDR-17

HDPE

TO BE DETERMINED

IN FIELD

T.B.D.

6" DIA DUCTILE IRON CLASS 300

NON-SHRINK GROUT

ALL PENETRATIONS

BUCKET COMPACTED ROAD MIX 3" MINUS

COMPACTED THOROUGHLY

6"

1' MIN

ROMAC 501 6"x12" COUPLER WITH FUSION

BONDED COATING AND 304 S.S. BOLTS

ENCASED AND HDPE STIFFENING RING IN

POLY. WRAPS OR APPROVED EQUIVALENT

FLOW

EXISTING 6"

DIA SDR-17

HDPE

6" DIA DUCTILE IRON CLASS 350

FLOW

PROPOSED 6" DIA

SDR-17 HDPE

SAMPLE PORT

60"Ø MANHOLE

6" BUTTERFLY VALVE

6" BUTTERFLY

VALVE

FLOW

F L O

W

ROMAC 501 6"x12" COUPLER WITH FUSION

BONDED COATING AND 304 S.S. BOLTS

ENCASED AND HDPE STIFFENING RING IN

POLY. WRAPS OR APPROVED EQUIVALENT

PROPOSED 6"

DIA SDR-17 HDPE

FLOW

F L O

W

72"Ø MANHOLE

TEE

(2) 6" BUTTERFLY VALVES

(PIPE-OVER-PIPE)

6" DIA DUCTILE IRON CLASS 350

90° BEND (VERTICAL), TEE,

90° BEND (VERTICAL)

FILTER

FLOW METER

STAYFLOW BCF1-T

BASKET FILTER OR

APPROVED EQUIVALENT

KROHNE WATERFLUX 3000 FLOW METER

OR APPROVED EQUIVALENT

6" DIA DUCTILE IRON CLASS 350

6" DIA DUCTILE IRON CLASS 350

90° BEND

TEE

90° BEND

T.B.D.

NON-SHRINK GROUT

ALL PENETRATIONS

BUCKET COMPACTED ROAD MIX 3" MINUS

COMPACTED THOROUGHLY

6"

FLOW

6" DIA DUCTILE IRON CLASS 350

TEE

90° BEND

90° BEND

FLOW

6" BUTTERFLY VALVE

6" BUTTERFLY VALVE

18"

6'

OR AS OTHERWISE

SHOWN

6"

MOUND SLIGHTLY

DETECTABLE WARNING

TAPE 'WATER'

36"

BACKFILL WITH EXCAVATED MATERIAL IN 12"

LIFTS, NO PARTICLES LARGER THAN 12"

THOROUGHLY COMPACT

PIPE AS CALLED

FOR ELSEWHERE

IMPORTED CLASS B BEDDING. PLACE

IN 6" LIFTS AND COMPACT TO 95%

MAXIMUM DRY DENSITY

6"

B

C2

A

C2

6" DIA DUCTILE IRON CLASS 350

PROPOSED 6" DIA

SDR-17 HDPE

6"

BUTTERFLY

VALVE

HDPE FLANGE

ADAPTER

HDPE FLANGE

ADAPTER

DRAIN

DRAIN

6" BUTTERFLY VALVE

6" BUTTERFLY VALVE

FACTORY BUILT-IN SUPPORTS

TEE

PROPOSED 6" DIA

SDR-17 HDPE

HDPE FLANGE

ADAPTER

FLOW

PROPOSED 6" DIA

SDR-17 HDPE

ROMAC 501 6"x12" COUPLER WITH FUSION

BONDED COATING AND 304 S.S. BOLTS

ENCASED AND HDPE STIFFENING RING IN

POLY. WRAPS OR APPROVED EQUIVALENT

16.5"

APPLY XYPEX CONCENTRATE

TO THE WALLS & FLOOR

APPLY XYPEX CONCENTRATE

TO THE WALLS & FLOOR

www.tetratech.com

Project No.:

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Checked By:

Drawn By:

Designed By:

Bar Measures 1 inch

117-0524307

LDC

DAG

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C2

C o p y r i g h t

T e t r a

T e c h

USDA FOREST SERVICE - NORTHERN REGION

BEAVERHEAD - DEER LODGE NATIONAL FOREST

BEAL MOUNTAIN MINE

2021 WASTE ROCK SYSTEM IMPROVEMENTS

WASTE ROCK DRAIN MODIFICATIONS

PIPE AND VAULT DETAILS

825 W. Custer Ave.

Helena, Montana 59602

PHONE: (406) 443-5210 FAX: (406) 442-7182

0 2/1/21 ISSUED FOR CONSTRUCTION LDC

VAULT #1 DETAIL- PLAN1

C2

NTS

VAULT #2 DETAIL- PLAN2

C2

NTS

VAULT #2- SECTIONA

C2

NTS

VAULT #2- SECTION

B

C2

NTS

TRENCH DETAIL3

C2

NTS

EXISTING INCOMING OUTGOING

GROUND PIPE PIPE

VAULT ELEV. ELEV. ELEV.

1 6875.0 6870.0 6870.0

2 6879.0 6868.0 NOTE 2

NOTES

1. ELEVATIONS OF ALL PIPE PENETRATIONS & VAULT DIMENSIONS

TO BE CONFIRMED BY THE CONTRACTOR PRIOR TO ORDERING.

2. OUTGOING PIPE PENETRATIONS UNKNOWN.

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Project No.:

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Checked By:

Drawn By:

Designed By:

Bar Measures 1 inch

117-0524307

LDC

DAG

LDC

C3

C o p y r i g h t

T e t r a

T e c h

USDA FOREST SERVICE - NORTHERN REGION

BEAVERHEAD - DEER LODGE NATIONAL FOREST

BEAL MOUNTAIN MINE

2021 WASTE ROCK SYSTEM IMPROVEMENTS

DEWATERING

PLAN

825 W. Custer Ave.

Helena, Montana 59602

PHONE: (406) 443-5210 FAX: (406) 442-7182

0 2/1/21 ISSUED FOR CONSTRUCTION LDC

FEET

125' 125' 250'

1"=250'

375'0

APPROXIMATE LOCATION

OF IMPROVEMENTS SHOWN

ON SHEETS C1 & C2

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NOTES

1. DEWATERING PLAN INVOLVING TOE-DRAIN MANHOLE, SPRING 10A

MANHOLE & DISCHARGE TO CONSTRUCTED CHANNEL OF GERMAN

GULCH IS DESCRIBED IN PROJECT DOCUMENTS SECTION C.

APPROXIMATE LOCATION OF

TOE DRAIN MANHOLE

(SEE NOTE 2)

APPROXIMATE LOCATION OF

SPRING 10A MANHOLE

(SEE NOTE 2)

APPROXIMATE LOCATION OF CHANNEL

FOR DEWATERING DISCHARGE

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