Westside Package 1_Final plans Revised SIGNED.pdf

lmreeves Stamp of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

COLVILLE NATIONAL FOREST

GENERAL NOTES AND

CONCEPTUAL TRAFFIC CONTROL DIAGRAMS

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

PROJECT SITE

100 FT500 FT500 FT

CONCEPTUAL TRAFFIC CONTROL DIAGRAMS

100 FT

NFSR 5320000

100 FT 500 FT 500 FT 100 FT

NFSR 2054200

PROJECT SITE

PROJECT SITE

FR 5320000 MP 0.1

FR 2054200 MP 0.1

FR 2054000 MP 0.05

NFSR 5314000

NFSR 2053000

100 FT 500 FT 500 FT 100 FT

NFSR 2054000

NFSR 2053000

"Trucks Ahead" 36"x36";

"Road Closed Ahead" 36"x36";

"Construction Ahead" 36"x36"

Road Closure Barricade, Type III with Road Closed Sign 30"x18"

LEGEND

1. Sign distances and locations may be adjusted based on road conditions.

2. Signage must meet MUTCD standards.

3. In addition to the signs above, place a "Road Closed Ahead, XX miles" sign at the junction of:

NFSR 5320000 & NFSR 5800000

NFSR 2054000 & NFSR 2053000

To inform the public that the route is closed and that trucks will be hauling.

SIGNAGE NOTES

GENERAL NOTES

1. The Contractor is defined herein as the entity responsible for on-site installation of all items specified and shown in the contract documents.

2. The Contractor is responsible for arranging location of staging, stockpile, and access areas with the US Forest Service prior to construction.

3. The Contractor is responsible for implementing whatever measures are necessary for the protection of all existing facilities, including those associated with temporary access or staging on adjoining properties, during the course of the construction. Any repairs, replacements or restoration measures made necessary by the Contractor's activities will be made at the Contractor's expense.

4. The Contractor shall verify all on-site measurements of existing structures prior to submission of shop drawings, commencing with any structural fabrication, and commencement of on-site work. Contractor is to notify CO immediately of any discrepancies found that may affect the intended work.

5. The safety of all on-site workers shall be the responsibility of the Contractor. Conform to all laws and codes regarding construction safety.

6. All discharge from dewatering efforts shall be routed to the creek and shall meet all state and federal regulations.

7. The Contractor shall perform all excavation and backfill work to the lines, dimensions and elevations indicated on the drawings. The Contractor shall thoroughly familiarize themselves with the existing soil conditions at the site by personal examination of the site prior to commencement.

8. All in-stream work shall be completed between July 1 and September 30.

9. A waste site for excess and unsuitable material will be located by the CO within approximately 2 miles of the project site.

DESIGN NOTES

SPECIFICATIONS

CONSTRUCTION: Materials and construction of the project shall be in accordance with the Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects (FP-14) with applicable Forest Service Supplemental Specifications (FSSS).

DESIGN LOADS

This structure is designed for HL-93 live loading in accordance with AASHTO LRFD Bridge Design Specifications, 8th edition

MATERIALS

Corrugated steel pipes per FP-14 602 AND FSSS 602, where applicable. Culvert thickness shall be as shown in the drawings and shall be assembled and fastened, where necessary, per manufacturer's recommendations.

CONCRETE: Use Class P(AE) Concrete for Precast members. The required 28-day compressive strength (F'c) is 4,000 psi with an entrained air content of 5% ± 1%. Finish all precast elements with an ordinary surface finish. Make all concrete in accordance with an approved mix design. Chamfer all exposed edges of concrete 3/4" and fillet all acute angles 3" unless otherwise noted.

REINFORCING STEEL: Use reinforcing steel of the deformed type conforming to AASHTO M31 (ASTM A615) Grade 60. Concrete cover is as shown; where not shown it must conform to AASHTO. Cut and bend reinforcing steel in conformance with ACI 315. Lap splice bars 2' min.

HARDWARE AND STRUCTURAL STEEL: Use shapes, plates and bars meeting the requirements of ASTM A36, unless otherwise specified in these plans. Use hardware meeting the requirements of ASTM A325, except as noted in the drawings.

WELDING: Weld in accordance with the Structural Welding Code, AWS D1.1. A certified welder is required.

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

COLVILLE NATIONAL FOREST

DEWATERING REQUIREMENTS

BD

MJ

MJ

XX

Aug-19

Existing pipe

PUMP

PUMP

Top of excavation (estimated)

Remove sediment from pumped water using filtration (e.g. "siltbags"), dispersion onto landscape (e.g. using perforated pipe), settling basin and/or addition of flocculates. Modify as needed to meet downstream turbidity requirements.To downstream energy dissipater

Sandbag By-pass & "Feeder" Dams Location to be staked by Contractor and approved by the CO

By-pass Pump Use for installing and removing gravity by-pass dams and diversions

Construct backwater dam to prevent water from entering work area from downstream

D/S Flow

(No turbidity)

Energy Dissipater as needed to prevent turbidity (e.g. plastic sheets, stones). By-pass discharge location to be staked by contractor and approved by CO.

PUMP

Stream by-pass pipe. Diameter as specified, watertight joints, minimum grade 2% downstream.

Downstream Sump Pump Place in cutoff trench or sump at depth needed to dewater excavation

PLAN

Upstream Sump Pump Place in cutoff trench or sump at depth needed to dewater excavation

New culvert footings

NOT FOR

CONSTRUCTION

Contractor Submittal &

Approval by CO Required according to FSSS 157

Sedimats- details & number of rows per manufacturer

Elbow joints as needed, typ.

NOTES:

1. The plan shown here is intended to represent the general dewatering requirements and not applicable to a specific site. The Contractor is required to submit a specific plan for each site.

2. Contractor to determine the size of the bypass pipe. Summertime base flow is estimated to be 2-4 CFS.

3. Ensure that the bypass pipe and dam are leak-proof. Construction shall not proceed until the implemented dewatering plan has been inspected and accepted by the CO in writing.

4. Ensure pumps are be clean and free of leaks and placed in a containment kit.

5. Excavate draw down pool for sumps a minimum of 2 feet below the bottom of the excavation and a minimum of 5 feet in diameter.

6. Maintain all elements of the operation in order to dewater the foundation, facilitate construction, prevent harm to aquatic organisms (not just fish) and prevent sediment and turbidity from entering the stream. The dewater system will be constructed in a manner which enables FS biologist to collect and transport organisms from the live channel, just before completion of the diversion dam.

7. Operate pumps (preferably electric) downstream of the bypass dam if the dam does not seal thoroughly. Maintain a pump running 24 hours a day in the downstream sediment retention dam to divert water containing sediment to the forest floor where it will be filtered before entering back into the stream.

Leave pumps in position on site even if water discharge drops considerably, to be prepared for storm flows.

PUMP

By-pass pipe (sized by contractor)

Sandbag by-pass dam.

Min. height= 6" above by-pass pipe at thalweg

1.5

SANDBAG BY-PASS DAMS

Not to Scale

Impervious membrane.

Entrench 1/2*D or 18" min.

Sandbag "Feeder" dam.

Min. height= 6" above feeder pipe at thalweg.

"Feeder" pipe (sized by contractor)

Width= 2 x height

Streambed

Pump as needed to construct dam

UPSTREAM

END

1.5

Streambed

Impervious membrane.

Sandbag containment & backwater prevention dam.

Min. height= 2".

Entrench

Membrane 1/2*D or 18" min.

Width= 2 x height

SANDBAG CONTAINMENT DAM

Not to Scale

DOWNSTREAM

END

Edge of exiting road, typ.

Edge of active channel, typ.

ENGINEERS

PLANNERS

SURVEYORS

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 5320000 MP 0.1 SCATTER CREEK

SUMMARY OF ESTIMATED QUANTITIES,

SHEET INDEX AND LEGEND

BD

MJ

MJ

XX

Aug-19

ITEM

NO.

ITEM DESCRIPTION UNIT

SCATTER

CREEK

QUANTITY

REMARKS

15101A MOBILIZATION Lump Sum ALL

15221A CONSTRUCTION SURVEY AND STAKING Lump Sum ALL

15401A CONTRACTOR TESTING Lump Sum ALL

15713A SOIL EROSION AND POLLUTION CONTROL Lump Sum ALL INCLUDES DEWATERING

20102A CLEARING AND GRUBBING Lump Sum ALL DISPOSAL OF SLASH (e) AND (f)

20302A REMOVAL OF EXISTING CULVERT, METHOD (A) Each 1

20304A REMOVAL OF EXISTING ASPHALT Square Yard 110 CQ DISPOSAL METHOD (A)

20411A

UNCLASSIFIED BORROW, PLACEMENT

METHOD 2

Cubic Yard 44

20804A STRUCTURE EXCAVATION Lump Sum ALL

25104A KEYED RIPRAP, CLASS 3, MACHINE PLACED Cubic Yard 32 CQ COMMERCIAL SOURCE

27201A

GEOCELL ABUTMENT STABILIZATION,

6" DEPTH

Square Yard 60 CQ

INCLUDES FURNISHINGS AND PLACING

GRANULAR BACKFILL

30207A AGGREGATE SURFACE COURSE, METHOD B Cubic Yard 49 CQ COMMERCIAL SOURCE.

55220A PRECAST CONCRETE FOOTING Linear Foot 94

60306A

11' SPAN, 4'-5 1/2" RISE STRUCTURAL PLATE

ARCH, 0.111" THICKNESS Linear Foot 46

62201A

EQUIPMENT RENTAL, HYDRAULIC EXCAVATOR

WITH THUMB

Hour 4

63501A TEMPORARY TRAFFIC CONTROL Lump Sum ALL

OPTIONAL ITEMS

64801A

PLACED STREAMBED SIMULATION ROCK, BED

CLASS 2

Cubic Yard 28

FOR STREAMBED WITHIN CULVERT,

COMMERCIAL SOURCE. USED ONLY IF

SUFFICIENT SUITABLE MATERIAL IS NOT

AVAILABLE ON SITE.

64806A

PLACED CHANNEL ROCK, 6" - 12"

APPROXIMATE CUBIC DIMENSION

Cubic Yard 22

FOR STREAMBED WITHIN CULVERT,

COMMERCIAL SOURCE. USED ONLY IF

SUFFICIENT SUITABLE MATERIAL IS NOT

AVAILABLE ON SITE. INCLUDES ROCK BANKS,

RANDOM ROCKS, AND ROCK RIB STRUCTURES.

SUMMARY OF ESTIMATED QUANTITIES

FR 5320000 MP 0.1 SHEET INDEX

NO. DESCRIPTION

SUMMARY OF ESTIMATED QUANTITIES, SHEET

INDEX AND LEGEND

5 ROAD TYPICAL SECTION AND POINT TABLES

6 ROAD PLAN AND PROFILE

7 CULVERT GENERAL LAYOUT

8 STRUCTURE EXCAVATION AND BACKFILL DETAILS

9 FOOTING DETAILS

10 PRECAST DETAILS

11 STREAM DETAILS

12 ROAD CROSS SECTIONS

CQ= Contract Quantity (See SECTION 109.02(b) of the STANDARD SPECIFICATIONS

ENGINEERS

PLANNERS

SURVEYORS

LEGEND EXISTING FEATURES

Existing Culvert

Existing Edge of Water

Major Contour (5')

Minor Contour (1')

Existing Edge of Road

> > Existing Ditch

Existing Edge of Shoulder

SURVEY NOTES

HORIZONTAL INFORMATION: Coordinate values and distances shown hereon are modified State Plane (ground) values and are in reference to U.S. State Plane Coordinate System, Washington State Plane North Zone (4601), North American Datum 1983 (NAD83(2011)), with a combined scale factor of 1.00018249 derived from CP-4, and applied at CP-4, set 60d nail, having a geodetic location for CP-4:

latitude: 48°30'56.07655" north, longitude: 118°48'02.30882" West and State Plane coordinates of N: 559355.43, E: 2133034.64.

VERTICAL INFORMATION: Total station derived elevations were utilized for all mapping points on this project and is in reference to North American Vertical Datum of 1988 (NAVD88). Utilizing CP-1 which was held fixed using the opus elevation value of 3179.82 feet.

CQ

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CONTROL POINT TABLE

POINT #

CP-1

CP-2

CP-3

CP-4

CP-5

CP-6

NORTHING

559128.59

559376.71

559337.88

559355.43

559365.50

559551.22

EASTING

2132882.57

2133001.99

2133275.02

2133034.64

2133092.28

2133034.62

ELEVATION

3179.82

3174.45

3178.19

3177.58

3176.50

3171.74

DESCRIPTION

SET-RPC

SET-RPC

SET-RPC

SET-NAIL

SET-NAIL

SET-NAIL

LAYOUT POINTS

POINT #

NORTHING

559341.1236

559345.5177

559389.3555

559384.9614

EASTING

2133074.2969

2133062.8621

2133079.7077

2133091.1425

ELEVATION

3166.88

3166.88

3166.17

3166.17

DESCRIPTION

FOOTING LAYOUT

FOOTING LAYOUT

FOOTING LAYOUT

FOOTING LAYOUT

CENTERLINE POINTS

POINT #

NORTHING

559375.4839

559369.1870

559364.6623

559359.2116

559354.6035

559352.5778

559349.6450

559346.7122

EASTING

2133041.9997

2133060.9808

2133076.7805

2133099.7027

2133125.4755

2133139.1408

2133158.9246

2133178.7084

ELEVATION

3177.23

3177.60

3177.78

3177.73

3177.51

3177.40

3177.24

3177.07

DESCRIPTION

STA 5+20

STA 5+40

STA 5+56.44 CULVERT

STA 5+80

STA 6+06.19 PT

STA 6+20

STA 6+40

STA 6+60

CP-1

CP-2

CP-3

CP-4

CP-5

CP-6

of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 5320000 MP 0.1 SCATTER CREEK

ROAD TYPICAL SECTION

AND POINT TABLES

BD

MJ

MJ

XX

Aug-19

RPC= Rebar with DJ&A Red Plastic Cap, NAIL= 60d Nail

TYPICAL ROAD SECTIONS

Not to Scale

4% 4%

Centerline Road

Profile Grade

1.5

1 Aggregate Surface Course 6" compacted thickness

1.5

Varies at intersection 7'-0" min.

Varies at intersection 7'-0" min.

Varies at intersection

14'-0" min.

1' 1'

Clearing Limits, typ.

Clear to: Toe of fill, Cut daylight, or 5' min. shown.

5'-0" min.5'-0" min.

ENGINEERS

PLANNERS

SURVEYORS

PROJECT CONTROL

Scale: 1" = 100'

N

S C

A T

T E

R C

R E

E K

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4+40 5+00 6+00 7+00 8+00 8+80

1.90% -0.82%

S T

A

.0

E L

.2

S T

A

.0

E

.0

PVI STA: 5+56.44

PVI ELEV: 3177.92

K: 14.72

LVC: 40.00

B V

C S

.4

B V

C E

.5

E V

C S

.4

E V

C E

.7

6HIGH PT. STA:

5+64.39

HIGH PT ELEV:

3177.81

X

2+

PC: 2+17.82

5+00

6+00

7+00

8+00

8+47

CURVE DATA:

R=440.00 L=96.89'

Δ=12°36'58"

CURVE DATA:

R=130.00 L=105.10'

Δ=46°19'20"

P C

: 5

.3

P C

: 7

.7

P T

: 6

.1

PT:

+1 4.

853175

CP-2

CP-3

CP-4

CP-5

Edge of road

Remove and dispose of existing culvert

Toe of fill, typ.

New culvert, see sheet 7

Existing ground at centerline of road

Finished grade at centerline of road

STA 6+60.00

END ROAD WORK

MATCH EXISTING

PLAN

PROFILE

S C

A T

T E

R C

R E

E K

20'

Remove and dispose of existing culvert

New culvert

SCALE IN FEET

0 15 30 of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 5320000 MP 0.1 SCATTER CREEK

ROAD PLAN AND PROFILE

BD

MJ

MJ

XX

Aug-19

Centerline of road 5300000

Centerline of road 5320000

ENGINEERS

PLANNERS

SURVEYORS

N

Sawcut existing asphalt

Remove and dispose existing asphalt

ROAD CONSTRUCTION NOTES:

All road work is incidental to Items 20411A, Unclassified Borrow and 20804A, Structure Excavation, including haul & disposal of unsuitable material at the designated waste site.

STA 5+20.00

BEGIN ROAD WORK

MATCH EXISTING

STA 5+20.00

BEGIN ROAD WORK

MATCH EXISTING

SECTION

Scale: 1/2" = 1'- 0"

Existing Section

Sawcut full depth of asphalt

.0

New crushed aggregate surfacing

5' min. Stabilization Geotextile full width of intersection.

Incidental to Item 30207A

Match depth at interface

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EL 3166.17

Bottom of Footing

EL 3166.88

Bottom of Footing

-1.5%

STA 1+94

EL 3168.9

Channel Bottom

STA 1+47

EL 3169.6

Channel Bottom

FG EL 3177.78

at Centerline Road

6+

STA 5+56.44

Centerline Culvert at Centerline Road

Layout Pt.

Layout Pt.

8001 Layout Pt.

Layout Pt.

CP-4

CP-5

Centerline of ROAD 5320000

Edge of road

Remove and dispose of existing culvert

Toe of fill, typ.

11'-0" span X 4'-5 1/2" rise Structural Plate Arch

46' Culvert

47' Precast footing

2' min.

cover

HYDRAULIC DATA:

Drainage Area = 3.1 sq. mi.

Q2 = 8.1 cfs Bankfull Width = 7' Bank Height = 1.5'

Q100 = 46 cfs

Channel Bottom EL

7'-0"± Bankfull Width

TYPICAL SECTION

Scale: 3/8" = 1'-0"

PLAN

SECTION THRU CENTERLINE CULVERT

Scale: 1" =20'

Existing ground

11'-0" Span Structural Plate Arch

'-5

1 2

R is e of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 5320000 MP 0.1 SCATTER CREEK

CULVERT GENERAL LAYOUT

BD

MJ

MJ

XX

Aug-19

SCALE IN FEET

0 10 20

Remove and dispose of existing culvert

ENGINEERS

PLANNERS

SURVEYORS

N

CULVERT END BEVEL

Not to Scale

'-0

'-5

1 2"

1.5

3'-81 4"

Layout PT Layout PT

11'-0" span X 4'-5 1/2" rise Structural Plate Arch

Precast concrete footing see sheet 9 for details

See Sheet 11 for channel and bank dimensions and construction details

3'-0"

'-0

'-0

6'-0"

1.5

OUTSIDE OF

CULVERT

RIPRAP DETAIL

Not to Scale

Class 3 Riprap

3'-0"

Class 3 Riprap, typ.

(16 CY each end)

SCATTER

CREEK

Rock Rib, typ.

See Sheet 11

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 5320000 MP 0.1 SCATTER CREEK

STREAM DETAILS

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

Use Streambed Simulation Material, Bed Class 2.

See NOTE 1.

Precast concrete footing

See NOTE 2 for bank construction

7'-0"± Bankfull Width 1'-8"±1'-8"±

1'-8"±

4'-5"±

NOTES:

1. Shape channel bed prior to installation of structural plate arch. Use native material meeting the gradation for the specified bed class salvaged from the excavation or imported material under Optional Item 64801A if sufficient suitable material is not available on-site.

2. Construct bank margins in culvert with approximately 60% by volume Channel Rock (6" - 12") intermixed with approximately 40% by volume Streambed Simulation Material to fill the voids.

Channel Rocks may be salvaged from the excavation or supplied from the Government Source.

Reconstruct transitions as necessary at the beginning and end of the culvert simulated streambed to facilitate a smooth transition to the existing streambed.

ROCK RIB & CHANNEL ROCK PLAN

Not to Scale

STREAM PROFILE

Not to Scale

Construct Rock Rib from Channel Rock (±12"), typ.

30°

Edge of water

Channel Rock (6" - 12") Bank Section.

See Section

Random Channel Rock, typ.

See Detail

A

Streambed Simulation Rock, Bed Class 2

FLOW

B u ry

Channel Rock, (12"-30"). Extend above streambed as shown.

New Streambed to 2 3

3 4 d ia

A

DETAIL

Not to Scale

RANDOM ROCK

PLACEMENT DETAIL

Footing Stem Wall, typ.

TYPICAL CHANNEL SECTION

Not to Scale

TYPICAL ROCK RIB SECTION

Not to Scale

Construct Rock Rib with Channel Rock (±12") to span bed width.

Rock Rib to protrude 3" above Stream Bed.Stream Bed

Elevation

Channel dimensions same as above

TYPICAL CHANNEL SECTION

Precast Concrete Footing, typ.

3"

FOOTNOTES:

The spacing and configuration of rock ribs may be adjusted in the field by the CO to fit the actual streambed conditions. Rock structures to be constructed with 1 - 4 Channel Rocks (±12") buried 23 - 4 of their diameter.

Rib rock will be in contact with the adjacent piece and protrude ±3" from stream bed.

Vary direction, shape, and orientation of the Rock ribs. Ribs to be angled 30°± perpendicular to centerline of pipe.

Ribs oriented straight across the channel are not desirable.

Rock structures are schematic only and the configuration may vary as directed by CO. Wood structures may be installed in lieu of rock structures as directed by CO.

Channel

Bottom Elevation

Typ.

±1 .5

SCATTER

CREEK

Rock Rib Sta. 1+55

Rock Rib Sta. 1+70

Rock Rib Sta. 1+85

Begin Footing

Sta. 1+47

Existing Ground along Centerline of Stream

New culvert

Streambed Simulation Rock Bed Class 2 (12" min. depth)

(3) Rock Ribs @ 15' Typical Spacing

2 2

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5+20.00

5+40.00

5+56.44

5+80.00

6+06.19

6+20.00

6+40.00

6+60.00

-20 0 20

-20 0 20

-40 -20 0 20

-20 0 20

-20 0 20

-20 0 20

-20 0 20

-20 0 20

-6.4%

-8.0% -4.0%

-2.6%

-4.0%

FR 5320000 MP 0.1 SCATTER CREEK

ROAD CROSS SECTIONS

WESTSIDE CULVERT DESIGNS PACKAGE 1

ENGINEERS

PLANNERS

SURVEYORS

17.1'25'

9.4'14.3'

7'9.3'

7' typ.7' typ.

Existing ground, typ.

Match existing cross slope

Match existing cross slope

1.5

Typical fill slopes

1.5

Typical cross slopes

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PREPARED BY :

SHEET 12 OF 35

lmreeves Stamp

FR 2054000 MP 0.05 SHEET INDEX

NO. DESCRIPTION

SUMMARY OF ESTIMATED QUANTITIES, SHEET

INDEX AND LEGEND

25 ROAD TYPICAL SECTION AND POINT TABLES

26 ROAD PLAN AND PROFILE

27 CULVERT GENERAL LAYOUT

28 STRUCTURE EXCAVATION AND BACKFILL DETAILS

29 FOOTING DETAILS

30 PRECAST DETAILS

31 STREAM DETAILS

32 - 34 ROAD CROSS SECTIONS

of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

SUMMARY OF ESTIMATED QUANTITIES,

SHEET INDEX AND LEGEND

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

ITEM

NO.

ITEM DESCRIPTION UNIT

NINEMILE

CREEK

QUANTITY

REMARKS

15101C MOBILIZATION Lump Sum ALL

15221C CONSTRUCTION SURVEY AND STAKING Lump Sum ALL

15401C CONTRACTOR TESTING Lump Sum ALL

15713C SOIL EROSION AND POLLUTION CONTROL Lump Sum ALL INCLUDES DEWATERING

20102C CLEARING AND GRUBBING Lump Sum ALL DISPOSAL OF SLASH (E AND F)

20302C REMOVAL OF EXISTING CULVERT, METHOD (A) Each 1

20411C

UNCLASSIFIED BORROW, PLACEMENT

METHOD 2

Cubic Yard 63

IN-PLACE QUANTITY, NOT ADJUSTED FOR

SHRINK/SWELL

20804C STRUCTURE EXCAVATION Lump Sum ALL

25104C KEYED RIPRAP, CLASS 3, MACHINE PLACED Cubic Yard 32 CQ

GOVERNMENT SOURCE. SEE COVER SHEET

FOR PIT LOCATION.

27201C

GEOCELL ABUTMENT STABILIZATION,

6" DEPTH

Square Yard 70 CQ

INCLUDES FURNISHINGS AND PLACING

GRANULAR BACKFILL

30207C AGGREGATE SURFACE COURSE, METHOD B Cubic Yard 56 CQ

GOVERNMENT SOURCE. SEE COVER SHEET

FOR PIT LOCATION

30216C

SCREENED AGGREGATE, 3" MINUS. FURNISH,

HAUL, AND PLACE Cubic Yard 10 COMMERCIAL SOURCE

55220C PRECAST CONCRETE FOOTING Linear Foot 110

60306C

16' SPAN, 5'-2" RISE STRUCTURAL PLATE

ARCH, 0.111" THICKNESS Linear Foot 54

62201C

EQUIPMENT RENTAL, HYDRAULIC EXCAVATOR

WITH THUMB

Hour 4

63501C TEMPORARY TRAFFIC CONTROL Lump Sum ALL

OPTIONAL ITEMS

64801C

PLACED STREAMBED SIMULATION ROCK, BED

CLASS 2

Cubic Yard 42

FOR STREAMBED WITHIN CULVERT,

COMMERCIAL SOURCE. USED ONLY IF

SUFFICIENT SUITABLE MATERIAL IS NOT

AVAILABLE ON SITE.

64806C

PLACED CHANNEL ROCK, 12" - 30"

APPROXIMATE CUBIC DIMENSION

Cubic Yard 26

FOR STREAMBED WITHIN CULVERT,

GOVERNMENT SOURCE. USED ONLY IF

SUFFICIENT SUITABLE MATERIAL IS NOT

AVAILABLE ON SITE. INCLUDES ROCK

BANKS, RANDOM ROCKS, AND ROCK RIB

STRUCTURES.

SUMMARY OF ESTIMATED QUANTITIES

CQ= Contract Quantity (See SECTION 109.02(b) of the STANDARD SPECIFICATIONS

LEGEND EXISTING FEATURES

Existing Culvert

Existing Edge of Water

Major Contour (5')

Minor Contour (1')

Existing Edge of Road

> > Existing Ditch

Existing Edge of Shoulder

SURVEY NOTES

HORIZONTAL INFORMATION: Coordinate values and distances shown hereon are modified State Plane (ground) values and are in reference to U.S. STATE Plane Coordinate System, Washington State Plane North Zone (4601), North American Datum 1983 (NAD83(2011)), with a combined scale factor of

1.00019214 derived from CP-3, and applied at CP-3, set 1” red plastic cap marked “DJ&A CP”, having a geodetic location for CP-3: latitude: 48°32'31.56270" north, longitude: 118°38'03.69672" West and State Plane Coordinates of N: 570135.85, E: 2173045.46.

VERTICAL INFORMATION: Total station derived elevations were utilized for all mapping points on this project and is in reference to North American Vertical Datum of 1988 (NAVD88). utilizing CP-3 which was held fixed using the opus elevation value of 3448.46 feet.

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CONTROL POINT TABLE

POINT #

CP-1

CP-2

CP-3

CP-4

CP-5

CP-6

CP-7

NORTHING

570418.67

570336.79

570135.85

570255.96

570231.98

570183.30

570235.94

EASTING

2173140.12

2173151.37

2173045.46

2173123.36

2173049.83

2172901.35

2173327.38

ELEVATION

3452.71

3452.32

3448.46

3450.67

3444.00

3441.94

3447.81

DESCRIPTION

SET-RPC

SET-RPC

SET-RPC

SET-NAIL

SET-NAIL

SET-NAIL

SET-NAIL

LAYOUT POINTS

POINT #

NORTHING

570222.6158

570205.6565

570212.2699

570229.2293

EASTING

2173126.0824

2173124.0279

2173069.4370

2173071.4916

ELEVATION

3439.55

3439.55

3438.76

3438.76

DESCRIPTION

FOOTING LAYOUT

FOOTING LAYOUT

FOOTING LAYOUT

FOOTING LAYOUT

CENTERLINE POINTS

POINT #

NORTHING

570317.5047

570298.4613

570279.4179

570266.2928

570241.7424

570217.4512

570206.2118

570189.5162

570173.6484

570158.6895

570144.7157

EASTING

2173135.0993

2173128.9878

2173122.8764

2173118.6642

2173109.4975

2173097.6911

2173091.1983

2173080.1944

2173068.0270

2173054.7582

2173040.4557

ELEVATION

3452.08

3451.87

3451.65

3451.50

3451.22

3450.77

3450.44

3449.78

3449.12

3448.60

3448.24

DESCRIPTION

STA 15+80

STA 16+00

STA 16+20

STA 16+33.78 PC

STA 16+60

STA 16+87.02 CULVERT

STA 17+00

STA 17+20

STA 17+40

STA 17+60

STA 17+80

of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

ROAD TYPICAL SECTION

AND POINT TABLES

BD

MJ

MJ

XX

Aug-19

RPC= Rebar with DJ&A Red Plastic Cap, NAIL= 60d Nail

TYPICAL ROAD SECTIONS

Not to Scale

4% 4%

Centerline Road

Profile Grade

Aggregate Surface Course 6" compacted thickness

7'-0" 7'-0" 1' 5'-0" min.1'5'-0" min.

Clearing Limits, typ.

Clear to: Toe of fill, Cut daylight, or 5' min. shown.

14'-0"

1.5

1.5

ENGINEERS

PLANNERS

SURVEYORS

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15+00 16+00 17+00 18+00 19+00 19+40

-1.07%

S T

A

.0

E

.0

PVI STA: 17+50.00

PVI ELEV: 3448.67

K: 26.34

LVC: 60.00

B V

C S

.0

B V

C E

.7

E V

C S

.0

E V

C E

.2

PVI STA: 16+90.00

PVI ELEV: 3450.90

K: 22.71

LVC: 60.00

B V

C S

.0

B V

C E

.2

E V

C S

.0

E V

C E

.7

CP-1

CP-2 CP-3

CP-4

CP-5

15+00

16+00

17+00

18+00

19+00

P C

: 16+ 33.78

PT: 1

9+26.18

CURVE DATA:

R=280.00 L=292.40'

Δ=59°49'57"

3455 3460

SCALE IN FEET

0 15 30

Centerline of road Edge of road

Remove and dispose of existing culvert

Toe of fill, typ.

New culvert see sheet 27

Existing ground at centerline of road

Finished grade at centerline of road

STA 15+80.00

BEGIN ROAD WORK

MATCH EXISTING

STA 17+80.00

END ROAD WORK

MATCH EXISTING

7' 7'

PLAN

PROFILE

7' 7'

20' of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

ROAD PLAN AND PROFILE

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

N

New culvert

Remove and dispose of existing culvert

ROAD CONSTRUCTION NOTES:

All road work is incidental to Item 20806C, Structure Excavation, including haul & disposal of unsuitable material at the designated waste site.

NINEMILE

CREEK

Construct hardened watering location for cattle as directed by CO. Do not construct until the CO has approved the location.

All work is indirect to Item 30216C.

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-1.4%

FG EL 3450.77

at Centerline Road

EL 3438.76

Bottom of Footing

STA 1+89

EL 3441.1

Channel Bottom

EL 3439.55

Bottom of Footing

STA 1+34

EL 3441.9

Channel Bottom

CP-4

CP-5

+0

STA 16+87.02

Centerline Culvert at Centerline Road

Layout Pt.

Layout Pt.

8201 Layout Pt.

Layout Pt.

SCALE IN FEET

0 10 20

Centerline of road

Edge of road

Remove and dispose of existing culvert

Toe of fill, typ.

16'-0" span X 5'-2" rise Structural Plate Arch

54' Culvert

55' Precast footing

2' min.

cover

HYDRAULIC DATA:

Drainage Area = 10.97 sq. mi.

Q2 = 38.1 cfs Bankfull Width = 9' - 11'

Depth = 1.1'

Q100 = 164 cfs Depth = 2.9'

Channel Bottom EL

10'-6" Bankfull Width (avg.)

TYPICAL SECTION

Scale: 1/4" = 1'-0"

PLAN

SECTION THRU CENTERLINE CULVERT

Scale: 1" =20'

Existing ground

16'-0" Span Structural Plate Arch

'-2

R is e of

Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

CULVERT GENERAL LAYOUT

BD

MJ

MJ

XX

Aug-19

16'-0" span X 5'-2" rise Structural Plate Arch

Remove and dispose of existing culvert

ENGINEERS

PLANNERS

SURVEYORS

N

CULVERT END BEVEL

Not to Scale

'-0

'-2

1.5

4'-9"

Precast concrete footing see sheet 29 for details

Layout PTLayout PT

See sheet 31 for channel and bank dimensions and construction details

NINEMILE

CREEK

3'-0"

'-0

'-0

6'-0"

1.5

OUTSIDE OF

CULVERT

RIPRAP DETAIL

Not to Scale

Class 3 Riprap

3'-0"

Class 3 Riprap, typ.

(16 CY each end)

Rock Rib, typ.

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Sheet Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

STRUCTURE EXCAVATION AND

BACKFILL DETAILS

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

SCALE IN FEET

0 10 20

Existing ground

N

Existing culvert

New concrete footings

Approximate limits of excavation

SITE MAP

SECTION

Not to Scale

Finished ground New aggregate surface course

Structure excavation (below existing ground, estimated 561 CY)

Approximate limits of excavation

Backfill (704.03)

New structural plate arch on concrete footings

Existing culvert

2'-0" 19'-7" Out-to-Out Footings typ.

6" geocell

N

IN

E M

IL

E

C R

E E

K

Use material salvaged from the excavation meeting FP-14 material specification 704.06 outside of the Backfill limits shown.

Compact in accordance with FSSS Subsection 204.11b Placement Method 2.

CONSTRUCTION NOTES

1. Provide clearing and grubbing of debris and vegetation present within areas as necessary to do the project. Cleared debris shall be scattered along fill slopes to provide slope stabilization.

2. The Contractor shall submit an erosion control plan including dewatering measures to the CO per FSSS 157. Refer to sheet 3 for a sample dewatering plan. Most fish will be removed from site before construction by the government. If any additional fish are encountered, Contractor shall capture fish and place them safely downstream of the project.

3. Remove all large trees within construction limits with root wads intact and place in locations designated by CO.

STRUCTURE BACKFILL NOTES:

1. Limits of excavation are shown for information purposes only. Slope or shore as required for safety. The contractor is solely responsible for excavation support and compliance with all applicable OSHA regulations. TRENCHES 20 FT OR GREATER REQUIRE THAT THE PROTECTIVE SYSTEM BE

DESIGNED BY A REGISTERED PROFESSIONAL ENGINEER AND/OR APPROVED BY A REGISTERED

PROFESSIONAL ENGINEER.

2. Notify the CO immediately if bedrock or soft, unsuitable soils are encountered.

3. The estimated volume of structure excavation is based on the excavation limits shown in section 1/28 above. This quantity does not include any streambed simulation or earthwork necessary for stream channel re-grading.

4. Backfill limits shown here are the minimum requirements. Place backfill in accordance with FP-14 Section 209, and as shown on these Plans, with material meeting the requirements of Subsection 704.03a.

Compact backfill material in accordance with FSSS Subsection 209.10a Compaction Method 1. Any material outside the Backfill limits shown is considered Road Embankment and the material must meet the requirements of FP-14 Subsection 704.06.

5. It is assumed that material conserved from the structure excavation at this site will meet the requirement for Backfill (704.03a) or Road Embankment (704.06). Some mixing and sorting may be required to meet the material specification. Haul and dispose unsuitable and excess material to the designated waste site. Haul and disposal of unsuitable or excess material is indirect to Item 20804.

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

FOOTING DETAILS

BD

MJ

MJ

XX

Jul-19

ENGINEERS

PLANNERS

SURVEYORS

ITEM DESCRIPTION

STRUCTURAL CONCRETE, CLASS A(AE)

REINFORCING STEEL

Cubic Yard

Pounds

26.5

UNIT QUANTITY

INFORMATIONAL QUANTITIES

Quantities shown above are included in Item 55220C.

DETAIL A

1'-3" 1'-0" 1'-3"

'-1

'-0

(3 x c o n t.

E a ch

F a ce o n c e n te r

Elevation shown on Sheet 27

Bottom of footing

3'-6"

(4) #4 x cont. Top & Bottom

@ 12" on center

#4 x 3'-2" @ 12" o.c.

STREAM SIDEFILL SIDE

8" '-6

9"

#4 U-bar @ 24" o.c.

#4 vert. @ 12" o.c.

'-1

NOTES:

1. Provide 2" clear cover for all reinforcement unless otherwise shown.

2. o.c. = on center.

3. Use 24" min. lap splice for all reinf. bars

1'-0" typ.

FOOTING DETAIL

Scale: 3/4" = 1'-0" cl r.

Place precast segments on a 6" thick layer of Geocell.

See NOTES this sheet.

Geotextile

1. Place Geocell on undisturbed subgrade.

2. Install Geocell in accordance with Forest Service Supplemental Specifications (FSSS) 272.06, holding lines and grades in place with suitable side forms or stakes to ensure cells are expanded to the minimum dimension required by the manufacturer.

3. Backfill Geocell with coarse granular backfill per FSSS Subsection 703.03(c).

4. Place Type II Geotextile under Geocell (incidental to Item 27201C).

5. Extend Geocell 1' minimum beyond limits of footing on each side and each end.

GEOCELL NOTES

DETAIL A

Note to Scale

Fill key with non-shrink grout

1/4

L 2-1/2 x

2-1/2 x 38 x cont.

#5 Rebar x 1'-2" @ 12"o.c.

4" 5" 3"

2"

16'-0" Culvert Span

15'-1"

Foundation stem wall

INSTALLATION DETAIL

Not to Scale

1. A foundation investigation was NOT conducted at this site. Soils were assumed to be sands and gravels (GW, GP, SW, SP). Notify the CO immediately if bedrock, silts or very soft clay soils are encountered within the limits of the foundations shown in these PLANS. In no case should the footing be placed directly on large boulders, random outcroppings of bedrock, or soft soils without prior approval.

2. Prepare foundation in accordance with Section 208 of the Specifications. Foundation must be approved in writing by the CO prior to placing the leveling course.

3. The culvert footing was designed for a presumptive allowable bearing pressure of 3500 psf.

FOUNDATION NOTES

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

PRECAST DETAILS

BD

MJ

MJ

XX

Jul-19

6" 6"

54'-0" Culvert

55'-0" Footing

End of Culvert, typ.

Mechanical Splice, typical both sides of wall and footing. See DETAIL on this sheet.

(4) Interior Sections @ 8'-9" = 35'-0"10'-0" Exterior Section, typ.

Contractor may adjust precast segment lengths shown depending upon setting equipments capabilities.

Footing weight is approximately 948 lb/ft.

Mechanical Splice, typ.

both sides of footing and wall. See Detail on this sheet.

Typical Foundation Segments

1/4

1 2"

PLAN SECTION

ELEVATION

BOLTED ALTERNATE

ELEVATION

PLAN SECTION

WELDED ALTERNATE

Footing Segment

Undisturbed Soil

Undisturbed Soil

Footing Segment

3/4"Ø A325 Bolts.

7/8"x 1-1/2" vert. slotted holes in flanges, typ. Bar 3"x 5/16" x 0'-8"

Footing splice shown wall splice similar.

(2) 1/2"Ø x 6" Headed Concrete Anchors @ 6" o.c.

(2) 1/2"Ø x 8" Headed Concrete Anchors @ 6" o.c.

L 3x3x 5/16 x 0'-10", typ.WT8x20x 0'-10" typical Face of Footing

Face of Footing

2"

Splice location at 1/2 height of stem wall

Alternate locations (on each side of stem wall) for Post-Installed Anchors/Plate Alternative. See Details this sheet

ELEVATION

POST-INSTALLED ANCHORS ALTERNATE

1'-3"

6"11 2" 6" 11

2"

1 2

11 2

P/L 5/16" x 8" x 1'-3" w/ 13/16"Ø holes

3/4"Ø x 6" Hilti HAS-E Rod or approved equal.

Embed 3-1/2" and secure w/ approved epoxy system

Prior to fabricating precast footings submit for approval shop drawings detailing segment lengths, splice connections, proposed concrete mix design, pick locations, and selected connection for culvert.

Other precast/prefabricated footing options that meet size, strength and functionality of concrete footings shown may be submitted for review and approval.

MECHANICAL SPLICE DETAIL

Not to Scale

PRECAST FOUNDATION ELEVATION

Not to Scale

TYPICAL PRECAST SEGMENT

Not to Scale

Undisturbed Soil Place precast segments on geocell

Geocell Geocell

ENGINEERS

PLANNERS

SURVEYORS

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Date:

765 South Main St.

Revision ByDateNo. Apvd.

National Forests

Colville, WA

Washington

99114

Colville

Reviewed

Drawn Design Checked

Project No. 6915.001

WESTSIDE CULVERT DESIGNS PACKAGE 1

FR 2054000 MP 0.05 NINEMILE CREEK

STREAM DETAILS

BD

MJ

MJ

XX

Aug-19

ENGINEERS

PLANNERS

SURVEYORS

ROCK RIB & CHANNEL ROCK PLAN

Not to Scale

Construct Rock Rib from Channel Rock (12"-16"), typ.

30°

Edge of water

Channel Rock (6" - 16") Bank Section.

See Section

Random Channel Rock, typ.

See Detail

A

Streambed Simulation Rock, Bed Class 2

Footing Stem Wall, typ.

FOOTNOTES:

The spacing and configuration of rock ribs may be adjusted in the field by the CO to fit the actual streambed conditions. Rock structures to be constructed with 1 - 4 Channel Rocks (±12") buried 23 - 4 of their diameter.

Rib rock will be in contact with the adjacent piece and protrude ±3" from stream bed.

Vary direction, shape, and orientation of the Rock ribs. Ribs to be angled 30°± perpendicular to centerline of pipe.

Ribs oriented straight across the channel are not desirable.

Rock structures are schematic only and the configuration may vary as directed by CO. Wood structures may be installed in lieu of rock structures as directed by CO.

NINEMILE

CREEK

.5

.1

±8'

±2'-3" 10'-6" Bankfull Width ±2'-3"

Use Streambed Simulation Material, Bed Class 2.

See NOTE 1.

Precast concrete footing

See NOTE 2 for bank construction

NOTES:

1. Shape channel bed prior to installation of structural plate arch. Use native material meeting the gradation for the specified bed class salvaged from the excavation or imported material under Optional Item 64801A if sufficient suitable material is not available on-site.

2. Construct bank margins in culvert with approximately 60% by volume Channel Rock (6" - 12") intermixed with approximately 40% by volume Streambed Simulation Material to fill the voids.

Channel Rocks may be salvaged from the excavation or supplied from the Government Source.

TYPICAL CHANNEL SECTION

Not to Scale

FLOW

B u ry

Channel Rock, (12"-30"). Extend above streambed as shown.

New Streambed to 2 3

3 4 d ia

A

DETAIL

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RANDOM ROCK

PLACEMENT DETAIL

TYPICAL ROCK RIB SECTION

Not to Scale

Construct Rock Rib with Channel Rock (±12") to span bed width.

Rock Rib to protrude 3" above Stream Bed.Stream Bed

Elevation

Channel dimensions same as above

TYPICAL CHANNEL SECTION

Precast Concrete Footing, typ.

3"

Reconstruct transitions as necessary at the beginning and end of the culvert simulated streambed to facilitate a smooth transition to the existing streambed.

STREAM PROFILE

Not to Scale

Rock Rib Sta. 1+41

Rock Rib Sta. 1+61 Rock Rib

Sta. 1+81

Begin Footing

Sta. 1+34

Existing Ground along Centerline of Stream

New culvert

Streambed Simulation Rock Bed Class 2 (12" min. depth)

(3) Rock Ribs @ 20' Typical Spacing

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15+80.00

16+00.00

16+20.00

16+33.78

16+60.00

-20 0 20

-20 0 20

-20 0 20

-20 0 20

-20 0 20

-4.0%

FR 2054000 MP 0.05 NINEMILE CREEK

ROAD CROSS SECTIONS

WESTSIDE CULVERT DESIGNS PACKAGE 1

ENGINEERS

PLANNERS

SURVEYORS

7' typ.7' typ.

Existing ground, typ.

Match existing cross slope

Typical cross slopes

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16+87.02

17+00.00

17+20.00

17+40.00

-40 -20 0 20 40

-20 0 20 40

-20 0 20

-20 0 20

FR 2054000 MP 0.05 NINEMILE CREEK

ROAD CROSS SECTIONS

WESTSIDE CULVERT DESIGNS PACKAGE 1

ENGINEERS

PLANNERS

SURVEYORS

1.5

Typical fill slopes

1.5

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17+60.00

17+80.00

-20 0 20

-20 0 20

FR 2054000 MP 0.05 NINEMILE CREEK

ROAD CROSS SECTIONS

WESTSIDE CULVERT DESIGNS PACKAGE 1

ENGINEERS

PLANNERS

SURVEYORS

Match existing cross slope

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PREPARED BY :

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