Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth...

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File Location: T:\00102_Pointe_du_Bois\WorkArea\GIS\MXD\EIS\Figure_8.1_Stage_1_Construction_Velocity Pointe du Bois Spillway Replacement Project Existing and Stage 1 Construction Water Velocities Figure: DATA SOURCE: Manitoba Hydro, KGS Acres DATE CREATED: CREATED BY: REVISION NO: REVISION DATE: QA/QC: VERSION 1.0 30 MAY 2011 07 JUN 2011 Coordinate System: UTM Zone 14N KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions: 50 Year Annual Peak Flow Total Flow = 2610 m 3 /s Total Powerhouse Flow = 0 m 3 /s Total Spillway Flow = 2610 m 3 /s Forebay Water Level = 299.1 m Tailwater Level = 285.90 m Spillway Operation = Bays 121-133, 101-114, 1-65 Sluiceway = 1-5 N.T.S. Legend Velocity [m/s] 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 Depth Averaged Velocities Downstream Cofferdam with Extension Under Construction Design Flood Conditions Note: Figure represents Stage 1 - Phase 2 construction as described in Project Description Section 3.3.2

Transcript of Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth...

Page 1: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

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Pointe du BoisSpillway Replacement ProjectExisting and Stage 1 Construction

Water VelocitiesFigure:

DATA SOURCE:

Manitoba Hydro, KGS Acres

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

30 MAY 2011

07 JUN 2011

Coordinate System: UTM Zone 14N

KMS / MWZ

Water Resources Engineering

8.1

Depth Averaged VelocitiesExisting Environment50 Year Annual Peak Flow

Flow Conditions:50 Year Annual Peak FlowTotal Flow = 2610 m3/sTotal Powerhouse Flow = 0 m3/sTotal Spillway Flow = 2610 m3/sForebay Water Level = 299.1 mTailwater Level = 285.90 mSpillway Operation = Bays 121-133, 101-114, 1-65Sluiceway = 1-5

N.T.S.

LegendVelocity [m/s]

7.06.56.05.55.04.54.03.53.02.52.01.51.00.5Depth Averaged Velocities

Downstream Cofferdam with ExtensionUnder Construction Design Flood ConditionsNote:Figure represents Stage 1 - Phase 2 constructionas described in Project Description Section 3.3.2

Page 2: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

Peterso

n

Cree

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RIVER

Shatford Creek

Shatford Lake

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South

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Channel

Nor th

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RIVER

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Good Lake

Burton Lake

Regimbal Lake

John

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Lauries

Creek

Rush Lake

BERNIC LAKE

WINNIP EG

RIVE

R

South

Shore

Cha

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Nort h

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GEOR

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LAKE

Forbes Lake

Boon Lake

North SailingLake

ECHO

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Pointe du Bois G.S.

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Pointe du BoisSpillway Replacement Project

Stage 2 Diversion and Post Project Water Velocity Lamprey Falls to Slave Falls G.S.

Figure:

DATA SOURCE:Manitoba Hydro

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

24 DEC 2010

06 JUN 2011

Coordinate System: UTM Zone 14N

Peterso

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Cree

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RIVER

Shatford Creek

Shatford Lake

KeysLake

WINNIPE

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RI

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Blind B

ay

South

Shore

Channel

Nor th

Sho

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hann

elWI

NNIPE

G

RIVER

GEORG

E

LAKE

Good Lake

Burton Lake

Regimbal Lake

John

ston L

akeBig

Bay

Laurie

s

C

reek

Rush Lake

BERNIC LAKE

WINNIP EG

RIVE

R

South

Shore

Cha

nnel

Nort h

Shor

e Ch a

nnel

GEOR

GE

LAKE

Forbes Lake

Boon Lake

North SailingLake

ECHO

L

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Pointe du Bois G.S.

Slave Falls G.S.

Peter

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Cr ee

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BIRD

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Shatford Creek

Shatford Lake

KeysLake

WINNIPE

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RI

VER

Blind B

ay

South

Shore

Cha

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Nor th

Sho

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hann

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NNIPE

G

R IVER

GEORG

E

LAKE

Good Lake

Burton Lake

Regimbal Lake

John

ston L

akeBig Bay

Lauries

Creek

Rush Lake

BERNIC LAKE

WINNIP EG

RIVE

R

South

S hor

e Cha

nnel

North

Sho r

e Cha

nnel

GEOR

GE

LAKE

Forbes Lake

Boon Lake

North SailingLake

ECH O

L

AKE

SADD

LE LAKE

WINN

IPEG

RIVE

R

Tar

La

k e

Slave Falls G.S.

Pointe du Bois G.S.

0 3 61.5 Kilometres

0 2 41 Miles

5th Percentile Flow 50th Percentile Flow 95th Percentile Flow

KMS / MWZ

LegendVelocity [m/s]

0 - 0.50.5 - 1.51.5 - 33 - 5Greater than 5

Water Resources Engineering

8.2A

Eight Foot Falls Eight Foot FallsEight Foot Falls

Direction of Flow

Lamprey Falls Lamprey FallsLamprey Falls

Generating Station (G.S.)

Page 3: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

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Pointe du BoisSpillway Replacement ProjectStage 2 Diversion and Post ProjectWater Velocity and Flow Patterns

Figure:

DATA SOURCE:Manitoba Hydro

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

24 DEC 2010

06 JUN 2011

Coordinate System: UTM Zone 14N

0 0.5 10.25 Kilometres

0 0.3 0.60.15 Miles

Velocity Vectors NTS

Pointe du Bois G.S.

Eight Foot Falls

5th Percentile Flow 50th Percentile Flow 95th Percentile Flow

KMS / MWZ

LegendVelocity [m/s]

0 - 0.50.5 - 1.51.5 - 33 - 5Greater than 5

Water Resources Engineering

8.2B

Pointe du Bois G.S.

Eight Foot Falls

Pointe du Bois G.S.

Eight Foot Falls

Generating Station (G.S.)

Page 4: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

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Pointe du BoisSpillway Replacement ProjectStage 2 Diversion and Post Project

Water Depth Near Pointe du Bois G.S.Figure:

DATA SOURCE:Manitoba Hydro

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

29 DEC 2010

06 JUN 2011

Coordinate System: UTM Zone 14N

0 0.5 10.25 Kilometres

0 0.3 0.60.15 Miles

Pointe du Bois G.S.

Eight Foot Falls

5th Percentile Flow 50th Percentile Flow 95th Percentile Flow

KMS / MWZ

LegendDepth [m]

0 - 22 - 55 - 1010 - 30Greater than 30Direction of Flow

Water Resources Engineering

8.2C

Pointe du Bois G.S.

Eight Foot Falls

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Tailrace

Pointe du BoisForebay

Tailrace

Pointe du BoisForebay

Generating Station (G.S.)

Page 5: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

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Pointe du BoisSpillway Replacement Project

Estimated Velocity ChangesResulting from Spillway Replacement

Figure:

DATA SOURCE:Manitoba Hydro

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

29 DEC 2010

06 JUN 2011

Coordinate System: UTM Zone 14N

0 0.5 10.25 Kilometres

0 0.3 0.60.15 Miles

5th Percentile Flow 50th Percentile Flow 95th Percentile Flow

KMS / MWZ

LegendVelocity Change [m/s]

Less than -5-5 - -2-2 - -1-1 - -0.25-0.25 - 0.250.25 - 11 - 22 - 5Greater than 5Direction of Flow

Water Resources Engineering

8.3A

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Generating Station (G.S.)

Page 6: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

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Pointe du BoisSpillway Replacement Project

Estimated Depth ChangesResulting from Spillway Replacement

Figure:

DATA SOURCE:Manitoba Hydro

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

30 DEC 2010

06 JUN 2011

Coordinate System: UTM Zone 14N

0 0.5 10.25 Kilometres

0 0.3 0.60.15 Miles

5th Percentile Flow 50th Percentile Flow 95th Percentile Flow

KMS / MWZ

LegendDepth Change [m]

Less than -5-5 - -2-2 - -1-1 - -0.25-0.25 - 0.250.25 - 11 - 22 - 5Greater than 5Direction of Flow

Water Resources Engineering

8.3B

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Pointe du Bois G.S.

Eight Foot Falls

Tailrace

Pointe du BoisForebay

Generating Station (G.S.)

Page 7: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

Spillway Structure(Decommissioned)

ExistingPowerhouse

Rock Mattress Remnant

West BridgeAbutment

ApproachChannel

DischargeChannel

East Gravity

Dam

Pond 2

Pond 3

Pond 1

PrimarySpillway

SecondarySpillway

AccessBridge

West Gravity Dam

Spillway and Sluiceway Structure

East Abutment Dam

West Mainand

South Dam

RockfillDam

CofferdamRemnant

RockfillStabilization

InfilledArea

East MainDam

±

DATA SOURCE: Pointe du BoisSpillway Replacement ProjectCoordinate System: UTM NAD 1983 Z15 Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0 SB/MWZ0 0.04 0.08 Miles

0 0.08 0.16 Kilometres 24 May 11 North/South Consultants

26 May 1150th and 95th Percentile Flow ConditionsPost Project Environment

Figure:8.4

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Legend

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Proposed InfrastructureExisting Infrastructure

Post Project Flow Conditions50th Percentile95th Percentile

Page 8: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

±Fil

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0 90 18045 Meters

0 220 440110 Feet

Short-term Changes Specific toConstruction Phase

Pointe du BoisSpillway Replacement Project

Figure:8.5

DATA SOURCE:

Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

07 Jun 2011 North/South Consultants

07 Jun 2011

Coordinate System: UTM NAD 1983 Z15

SB/MWZ

Legend

Poin te du Bo is G .S.

Pond 3

Pond 1

Pond 2

Pond 6Pond 5

Pond 4

Pond 9

Pond 11

Pool 10

Pond 8Pond 7

Area Drained by Cofferdam

ApproachChannel

Cofferdam

ExistingPowerhouse

Access Bridge

West Mainand

South Dam

Spillway Structure(Decommissioned)

East GravityDam

Rock Infill Stabilization / Additional

Forebay

EastAbutment Dam

Powerhouse EastAbutment Transition

Infil led Area

SecondarySpillway

PrimarySpillway

DischargeChannel

Cofferdam BargeLanding

New ForebayArea

New ForebayArea

BargeLanding

Existing EnvironmentFlow Conditions

No Spill

95th Percentile50th Percentile

Construction Phase Infrastructure

Page 9: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

±Fil

e Loc

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: G:\E

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ublis

hedM

XD\Fi

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2011

0526

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0 90 18045 Metres

0 220 440110 Feet

Long-term Changes Specific toOperation Phase

Pointe du BoisSpillway Replacement Project

Figure:8.6

DATA SOURCE:

Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0

07 Jun 2011 North/South Consultants

07 Jun 2011

Coordinate System: UTM NAD 1983 Z15

SB/MWZ

Legend

Pointe du Bo is G.S .

Pond 3

Pond 1

Pond 2

Pond 6Pond 5

Pond 4

Pond 9

Pond 11

Pool 10

Pond 8Pond 7

ApproachChannel

ExistingPowerhouse

Access Bridge

West Mainand

South Dam

Spillway Structure(Decommissioned)

East GravityDam

Rock Infill Stabilization / Additional

Forebay

EastAbutment Dam

Powerhouse EastAbutment Transition

SecondarySpillway

PrimarySpillway

DischargeChannel

CofferdamRemnant

Remnant

New ForebayArea

Loss of Wetted HabitatDuring Operation Phase

95th Percentile50th Percentile

Post Project Flow Conditions

Bridge

95th Percentile

No Spill50th Percentile

Proposed InfrastructureExisting Infrastructure

Page 10: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

Po inte du Bo is G.S .

±

Pointe du BoisSpillway Replacement Project

50th Percentile Velocity ComparisonPost Project subtracted from Existing Environment

Figure:8.7A

ÚÕ

|ÿ

1

|ÿ

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|ÿ

7 |ÿ

8

|ÿ

44

|ÿ

11

|ÿ

11

|ÿ

59 |ÿ

11

|ÿ

12

|ÿ

44

|ÿ

12

|ÿ

59

|ÿ

15

|ÿ

67

|ÿ

17

|ÿ

304

|ÿ

100

|ÿ

101

|ÿ

100Winnipeg

Pointe du Bois G.S.

Coordinate System: UTM NAD 1983 Z15

DATA SOURCE:

Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0 SB/MWZ

10 MAY 2011 North/South Consultants

26 May 2011

0 0.1 0.2 Kilometres

0 0.06 0.12 Miles

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LegendVelocity Change (m/s) Existing Environment to Post Project

< -2.560-2.559 - -2.240-2.239 - -1.920-1.919 - -1.600-1.599 - -1.280-1.279 - -0.960-0.959 - -0.640-0.639 - -0.320-0.319 - -0.080-0.079 - 0.080

0.081 - 0.3200.321 - 0.6400.641 - 0.9600.961 - 1.2801.281 - 1.6001.601 - 1.9201.921 - 2.2402.241 - 2.560> 2.561

Existing InfrastructurePost Project Infrastructure

Page 11: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

Po in te du Bo is G .S.

±

Pointe du BoisSpillway Replacement Project

95th Percentile Velocity ComparisonPost Project subtracted from Existing Environment

Figure:8.7B

ÚÕ

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1

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9

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|ÿ

100

|ÿ

101

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100Winnipeg

Pointe du Bois G.S.

Coordinate System: UTM NAD 1983 Z15

DATA SOURCE:

Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0 SB/MWZ

10 MAY 2011 North/South Consultants

26 May 2011

0 0.1 0.2 Kilometres

0 0.06 0.12 Miles

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LegendVelocity Change (m/s) Existing Environment to Post Project

< -2.560-2.559 - -2.240-2.239 - -1.920-1.919 - -1.600-1.599 - -1.280-1.279 - -0.960-0.959 - -0.640-0.639 - -0.320-0.319 - -0.080-0.079 - 0.080

0.081 - 0.3200.321 - 0.6400.641 - 0.9600.961 - 1.2801.281 - 1.6001.601 - 1.9201.921 - 2.2402.241 - 2.560> 2.561

Existing InfrastructurePost Project Infrastructure

Page 12: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

±

DATA SOURCE: Pointe du BoisSpillway Replacement ProjectCoordinate System: UTM NAD 1983 Z15 Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0 SB/MWZ0 0.04 0.08 Miles

0 0.1 0.2 Kilometres 24 May 11 North/South Consultants

07 Jun 11

Figure:8.8A

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Legend

Po inte du Bo is G.S .

Habitat Suitability Index(Egg Deposition)

0.25 - 0.50.5 - 0.750.75 - 1 50th Percentile Flow Conditions (Scenario 1)Lake Sturgeon Habitat Suitability Index

Post ProjectExisting InfrastructurePost Project InfrastructureCritical Distance (238m)Spawning Barrier

Page 13: Spillway Replacement Project · 2019. 1. 25. · KMS / MWZ Water Resources Engineering 8.1 Depth Averaged Velocities Existing Environment 50 Year Annual Peak Flow Flow Conditions:

±

DATA SOURCE: Pointe du BoisSpillway Replacement ProjectCoordinate System: UTM NAD 1983 Z15 Manitoba Hydro, North/South Consultants

DATE CREATED: CREATED BY:

REVISION NO: REVISION DATE: QA/QC:

VERSION 1.0 SB/MWZ0 0.04 0.08 Miles

0 0.1 0.2 Kilometres 24 May 11 North/South Consultants

07 Jun 11

95th Percentile Flow Conditions (Scenario 6)Lake Sturgeon Habitat Suitability Index Post Project

Figure:8.8B

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Legend

0.25 - 0.50.5 - 0.750.75 - 1

Existing InfrastructurePost Project InfrastructureCritical Distance (238m)Spawning Barrier Habitat Suitability Index

(Egg Deposition)

Po inte du Bo is G.S .