Draft Imnaha Subbasin Summary November 30, 2001 Prepared for the Northwest Power Planning Council Subbasin Team Leader


Appendix G - Northwest Power Planning Council (1990) Smolt Density Model – Summer Steelhead



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Appendix G - Northwest Power Planning Council (1990) Smolt Density Model – Summer Steelhead




StreamName

TributaryTo

From

To

Present

LengthMiles

WidthFeet

UseType

HabitatQuality

SmoltCapacity

Major Habitat constraints

Imnaha R

Snake R

Mouth

Cow Cr

100

4.30

65

Primarily rearing and migration

Excellent

5484

 

Cow Cr

Imnaha R

Mouth

Long Prong


100

10.90

12

Primarily rearing and migration

Excellent

2566

 

Long Prong

Cow Cr

Mouth

Buckaroo Cr

100

3.20

4

Primarily rearing and migration

Excellent

251

 

Buckaroo Cr

Long Prong

Mouth

Headwaters

25

2.40

4

Primarily rearing and migration

Excellent

47

 

Cow Cr

Imnaha R

Long Prong

Headwaters

40

9.20

6

Primarily rearing and migration


Excellent

433

 

Imnaha R

Snake R

Cow Cr

Lightning Cr

100

1.10

75

Primarily rearing and migration

Excellent

1618

 

Lightning Cr

Imnaha R

Mouth

Rhodes Cr

82

5.30

16

Primarily spawning and rearing

Excellent

3452

 

Rhodes Cr

Lightning Cr

Mouth

Headwaters

20

5.10

5

Primarily spawning and rearing

Excellent

250

 

Lightning Cr


Imnaha R

Rhodes Cr

Sleepy Cr

74

4.70

15

Primarily spawning and rearing

Excellent

2559

 

Sleepy Cr

Lightning Cr

Mouth

Medicine Cr

27

11.70

6

Primarily spawning and rearing

Excellent

929

 

Medicine Cr

Sleepy Cr

Mouth

Headwaters

43

6.20

4

Primarily migration

Not Rated

0

 

Sleepy Cr

Lightning Cr

Medicine Cr

Headwaters

52

3.80

6

Primarily spawning and rearing


Excellent

592

 

Lightning Cr

Imnaha R

Sleepy Cr

Headwaters

100

12.10

10

Primarily spawning and rearing

Excellent

5935

 

Imnaha R

Snake R

Lightning Cr

Horse Cr

100

5.40

80

Primarily rearing and migration

Excellent

8476

 

Horse Cr

Imnaha R

Mouth

Pumpkin Cr

58

7.50

14

Primarily spawning and rearing

Excellent

3038

 

Pumpkin Cr

Horse Cr


Mouth

Headwaters

83

10.00

3

Primarily spawning and rearing

Excellent

1236

 

Horse Cr

Imnaha R

Pumpkin Cr

Headwaters

81

16.50

6

Primarily spawning and rearing

Excellent

3933

 

Imnaha R

Snake R

Horse Cr

Big Sheep Cr

100

11.50

80

Primarily rearing and migration

Excellent

18051

 

Big Sheep Cr

Imnaha R

Mouth

Camp Cr

100

1.10


19

Primarily rearing and migration

Excellent

410

 

Camp Cr

Big Sheep Cr

Mouth

Trail Cr

43

2.70

10

Primarily spawning and rearing

Excellent

582

Unscreened or poor diversion/channelization

Camp Cr

Big Sheep Cr

Trail Cr

Headwaters

100

11.60

6

Primarily spawning and rearing

Excellent

3414

Unscreened or poor diversion/channelization

Big Sheep Cr

Imnaha R

Camp Cr

Little Sheep Cr

100

2.00

34

Primarily rearing and migration


Excellent

1334

 

Big Sheep Cr

Imnaha R

Little Sheep Cr

Squaw Cr

100

12.30

38

Primarily rearing and migration

Excellent

9170

Channelization

Squaw Cr

Big Sheep Cr

Mouth

Squaw Cr, E Fk

100

1.60

5

Primarily spawning and rearing

Excellent

392

 

Squaw Cr, S Fk

Squaw Cr

Mouth

Headwaters

62

3.20

3

Primarily spawning and rearing

Excellent

291

 

Big Sheep Cr


Imnaha R

Squaw Cr

Marr Cr

56

1.60

20

Primarily spawning and rearing

Excellent

879

 

Marr Cr

Big Sheep Cr

Mouth

Headwaters

100

7.00

4

Primarily spawning and rearing

Excellent

1373

 

Big Sheep Cr

Imnaha R

Marr Cr

Griffith Cr

52

10.70

23

Primarily spawning and rearing

Excellent

6398

Unscreened or poor diversion/channelization

Appendix G (cont.)

Northwest Power Planning Council (1990) Smolt Density Model – Summer Steelhead



StreamName

TributaryTo

From

To

Present

LengthMiles

WidthFeet

UseType

HabitatQuality

SmoltCapacity

Major Habitat constraints

Griffith Cr

Big Sheep Cr

Mouth

Headwaters

15

6.30

3

Primarily spawning and rearing

Excellent

148

 

Big Sheep Cr

Imnaha R

Griffith Cr

Carrol Cr

43

1.70

18

Primarily spawning and rearing


Excellent

660

Unscreened or poor diversion/channelization

Carrol Cr

Big Sheep Cr

Mouth

Headwaters

43

6.90

2

Primarily spawning and rearing

Excellent

291

 

Big Sheep Cr

Imnaha R

Carrol Cr

Owl Cr

72

6.50

21

Primarily spawning and rearing

Excellent

4820

 

Big Sheep Cr

Imnaha R

Owl Cr

Lick Cr

100

3.90

15

Primarily spawning and rearing

Excellent

2869

 

Lick Cr

Big Sheep Cr


Mouth

Headwaters

85

10.00

18

Primarily spawning and rearing

Excellent

7505

 

Big Sheep Cr

Imnaha R

Lick Cr

Big Sheep Cr, S Fk

40

3.00

11

Primarily spawning and rearing

Excellent

647

 

Little Sheep Cr

Big Sheep Cr

Mouth

Bear Gulch

100

3.10

20

Primarily spawning and rearing

Excellent

3041

 

Bear Gulch

Little Sheep Cr

Mouth

Headwaters

81

10.00


4

Primarily spawning and rearing

Excellent

1589

 

Little Sheep Cr

Big Sheep Cr

Bear Gulch

Devils Gulch

100

2.40

10

Primarily spawning and rearing

Excellent

1177

 

Devils Gulch

Little Sheep Cr

Mouth

Headwaters

43

10.40

3

Primarily spawning and rearing

Excellent

658

 

Little Sheep Cr

Big Sheep Cr

Devils Gulch

Lightning Cr

100

2.20

12

Primarily spawning and rearing

Excellent

1294


 

Lightning Cr

Little Sheep Cr

Mouth

Headwaters

61

4.70

4

Primarily spawning and rearing

Excellent

562

 

Little Sheep Cr

Big Sheep Cr

Lightning Cr

Hayden Cr

87

5.70

12

Primarily spawning and rearing

Excellent

2952

 

Little Sheep Cr

Big Sheep Cr

Hayden Cr

Mccully Cr

93

10.00

11

Primarily spawning and rearing

Excellent

5072

 

Little Sheep Cr

Big Sheep Cr

Mccully Cr

Ferguson Cr


100

2.80

20

Primarily spawning and rearing

Excellent

2746

 

Imnaha R

Snake R

Big Sheep Cr

Freezeout Cr

100

12.90

50

Primarily rearing and migration

Excellent

12655

 

Freezeout Cr

Imnaha R

Mouth

Headwaters

76

8.30

9

Primarily spawning and rearing

Excellent

2821

 

Imnaha R

Snake R

Freezeout Cr

Grouse Cr

100

5.40

50

Primarily rearing and migration


Excellent

5297

 

Grouse Cr

Imnaha R

Mouth

Rich Cr

100

3.00

30

Primarily spawning and rearing

Excellent

4414

 

Rich Cr

Grouse Cr

Mouth

Headwaters

88

5.50

5

Primarily spawning and rearing

Excellent

1200

 

Grouse Cr

Imnaha R

Rich Cr

Morgan Cr

100

5.00

15

Primarily spawning and rearing

Excellent

3678

 

Morgan Cr

Grouse Cr


Mouth

Headwaters

67

4.00

5

Primarily spawning and rearing

Excellent

657

 

Grouse Cr

Imnaha R

Morgan Cr

Headwaters

80

10.40

13

Primarily spawning and rearing

Excellent

5305

 

Imnaha R

Snake R

Grouse Cr

Summit Cr

100

3.00

50

Primarily rearing and migration

Excellent

2943

 

Summit Cr

Imnaha R

Mouth

Headwaters

62

7.00

8

Primarily spawning and rearing


Excellent

1730

 

Imnaha R

Snake R

Summit Cr

Crazyman Cr

100

5.80

45

Primarily rearing and migration

Excellent

5121

 

Crazyman Cr

Imnaha R

Mouth

Headwaters

91

7.00

6

Primarily spawning and rearing

Excellent

1874

 

Imnaha R

Snake R

Crazyman Cr

Gumboot Cr

100

3.30

50

Primarily spawning and rearing

Poor

2428

Ice floes/icing conditions


Appendix G (cont.)

Northwest Power Planning Council (1990) Smolt Density Model – Summer Steelhead


StreamName

TributaryTo

From

To

Present

LengthMiles

WidthFeet

UseType

HabitatQuality

SmoltCapacity

Major Habitat constraints

Gumboot Cr

Imnaha R

Mouth

Gumboot Cr, N Fk

100

0.70

9

Primarily spawning and rearing

Excellent

309

 

Gumboot Cr, N Fk

Gumboot Cr

Mouth


Headwaters

86

2.80

7

Primarily spawning and rearing

Excellent

826

 

Gumboot Cr

Imnaha R

Gumboot Cr, N Fk

Headwaters

100

6.40

10

Primarily spawning and rearing

Excellent

3139

 

Imnaha R

Snake R

Gumboot Cr

Blackhorse Cr

100

1.70

50

Primarily spawning and rearing

Poor

1250

Ice floes/icing conditions

Imnaha R

Snake R

Blackhorse Cr

Dry Cr

100

1.00

50


Primarily spawning and rearing

Poor

735

Ice floes/icing conditions

Dry Cr

Imnaha R

Mouth

Dry Cr, N Fk

62

1.60

8

Primarily spawning and rearing

Poor

116

Ice floes/icing conditions

Dry Cr, N Fk

Dry Cr

Mouth

Headwaters

62

3.20

5

Primarily spawning and rearing

Poor

145

Ice floes/icing conditions

Dry Cr

Imnaha R

Dry Cr, N Fk

Headwaters

93

3.20

7

Primarily spawning and rearing

Poor

309

Ice floes/icing conditions

Imnaha R


Snake R

Dry Cr

Skookum Cr

100

6.50

50

Primarily spawning and rearing

Poor

4782

Ice floes/icing conditions

Skookum Cr

Imnaha R

Mouth

Headwaters

20

4.30

14

Primarily spawning and rearing

Poor

186

Ice floes/icing conditions

Imnaha R

Snake R

Skookum Cr

Imnaha R, N Fk

100

9.50

45

Primarily spawning and rearing

Poor

6290

Ice floes/icing conditions




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