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


Appendix F - Northwest Power Planning Council (1990) Smolt Density Model – Spring Chinook



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Appendix F - Northwest Power Planning Council (1990) Smolt Density Model – Spring Chinook




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

50622

 

Cow Cr

Imnaha R

Mouth

Long Prong


9

10.90

12

Primarily rearing and migration

Excellent

2309

 

Imnaha R

Snake R

Cow Cr

Lightning Cr

100

1.10

75

Primarily rearing and migration

Excellent

12949

 

Lightning Cr

Imnaha R

Mouth

Rhodes Cr

31

5.30

16

Primarily rearing and migration

Excellent

5324

 

Imnaha R

Snake R

Lightning Cr

Horse Cr

100

5.40

80

Primarily rearing and migration

Excellent


63571

 

Horse Cr

Imnaha R

Mouth

Pumpkin Cr

40

7.50

14

Primarily rearing and migration

Excellent

8240

 

Imnaha R

Snake R

Horse Cr

Big Sheep Cr

100

11.50

80

Primarily rearing and migration

Excellent

135384

 

Big Sheep Cr

Imnaha R

Mouth

Camp Cr

100

1.10

19

Primarily rearing and migration

Excellent

4100

 

Big Sheep Cr


Imnaha R

Camp Cr

Little Sheep Cr

100

2.00

34

Primarily rearing and migration

Excellent

13342

 

Big Sheep Cr

Imnaha R

Little Sheep Cr

Squaw Cr

100

12.30

38

Primarily spawning and rearing

Excellent

206343

Channelization

Big Sheep Cr

Imnaha R

Squaw Cr

Marr Cr

56

1.60

20

Primarily spawning and rearing

Excellent

7911

 

Big Sheep Cr

Imnaha R

Marr Cr

Griffith Cr


52

10.70

23

Primarily spawning and rearing

Excellent

57582

Unscreened or poor diversion

Big Sheep Cr

Imnaha R

Griffith Cr

Carrol Cr

43

1.70

18

Primarily spawning and rearing

Excellent

5943

Unscreened or poor diversion

Big Sheep Cr

Imnaha R

Carrol Cr

Owl Cr

72

6.50

21

Primarily spawning and rearing

Excellent

43387

 

Big Sheep Cr

Imnaha R

Owl Cr

Lick Cr

100

3.90

15

Primarily spawning and rearing


Excellent

25826

 

Lick Cr

Big Sheep Cr

Mouth

Headwaters

34

10.00

18

Primarily spawning and rearing

Excellent

27018

 

Big Sheep Cr

Imnaha R

Lick Cr

Big Sheep Cr, S Fk

40

3.00

11

Primarily spawning and rearing

Excellent

5827

 

Imnaha R

Snake R

Big Sheep Cr

Freezeout Cr

100

12.90

50

Primarily rearing and migration

Excellent

126555

 


Imnaha R

Snake R

Freezeout Cr

Grouse Cr

100

5.40

50

Primarily spawning and rearing

Excellent

119197

 

Imnaha R

Snake R

Grouse Cr

Summit Cr

100

3.00

50

Primarily spawning and rearing

Excellent

66220

 

Imnaha R

Snake R

Summit Cr

Crazyman Cr

100

5.80

45

Primarily spawning and rearing

Excellent

115224

 

Imnaha R

Snake R

Crazyman Cr

Gumboot Cr


100

3.30

50

Primarily spawning and rearing

Poor

8093

Ice floes/icing conditions

Imnaha R

Snake R

Gumboot Cr

Blackhorse Cr

100

1.70

50

Primarily spawning and rearing

Poor

4169

Ice floes/icing conditions

Imnaha R

Snake R

Blackhorse Cr

Dry Cr

100

1.00

50

Primarily spawning and rearing

Poor

2452

Ice floes/icing conditions

Imnaha R

Snake R

Dry Cr

Skookum Cr

100


6.50

50

Primarily spawning and rearing

Poor

15942

Ice floes/icing conditions

Imnaha R

Snake R

Skookum Cr

Imnaha R, N Fk

100

9.50

45

Primarily spawning and rearing

Poor

20969

Ice floes/icing conditions




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