Fish Passage Site 20200939

Coordinates (dec. deg.): 60.24200°, -149.36482°
Legal Description: S002N001W24
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward A-7
AWC Stream #:
Stream Name: Grouse Creek

Elevation:

Site Comments: Channel makes about a 90 degree bend going in and out of culverts.

Survey Date: Aug 29, 2001

Survey KPCS1-EK055

Observers: Cecil Rich, William Glick, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Constructed this summer. Channel makes about a 90 degree bend going in and out of culverts.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 89.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.9 4.9
Height(ft):4.92 4.75
Apron Length(ft):
Water Depth(ft):1.98 2.77
Rustline Height(ft):
Substrate Depth(ft):1.17 0.6
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 1.33
Outfall Type:
Constriction Ratio: 1.26
Culvert Gradient: -0.24%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 5.0 7.50
Downstream ordinary high water 50.0 13.60
Downstream ordinary high water 100.0 12.00
Upstream ordinary high water 70.0 4.90
Upstream ordinary high water 100.0 2.90

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 88.94
D/S Thalweg 0.00 100.0 88.94
D/S OHW Elev 0.00 100.0 87.02
D/S Water Surface Elev 0.00 100.0 89.19
D/S Water Surface Elev 50.00 50.0 89.31
D/S OHW Elev 50.00 50.0 89.44
D/S Thalweg 50.00 50.0 88.46
Max Pool Depth 95.00 5.0 88.94
D/S Tailcrest or 1st Thalweg 95.00 5.0 89.06
OHW Left Bank 95.00 5.0 89.56
D/S Water Surface Elev 95.00 5.0 89.56
OHW Left Bank 95.00 5.0 89.56
OHW Left Bank 95.00 5.0 89.67
Outlet Thalweg 1 100.00 0.0 88.83
Outlet Invert 1 100.00 0.0 88.23
Outlet Culvert Top 1 100.00 0.0 92.98
Road Elev 144.50 97.19
Road Elev 144.50 97.27
Inlet Culvert Top 1 189.00 0.0 92.94
Inlet Culvert Invert 1 189.00 0.0 88.02
Inlet Thalweg 1 189.00 0.0 89.19
U/S Thalweg 1 190.00 1.0 88.83
U/S Thalweg 1 194.00 5.0 89.06
U/S OHW elevation 1 194.00 5.0 89.60
U/S Water Surface Elev 1 194.00 5.0 89.98
U/S Thalweg 1 198.80 9.8 89.92
U/S Thalweg 259.00 70.0 92.08
U/S Headwater 259.00 70.0 92.31
U/S Water Surface Elev 259.00 70.0 92.60
U/S Thalweg 289.00 100.0 92.71
U/S Headwater 289.00 100.0 93.23
U/S Water Surface Elev 289.00 100.0 93.52

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 1.27
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.2

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 46 Fish Measured: 20 Fork Lengths (mm) Min: 55 Max: 121 Mean: 82
Collected/Observed by Gear Type: Downstream Minnow Trap (25)  Upstream Minnow Trap (21)  

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