Fish Passage Site 20300935

Coordinates (dec. deg.): 60.50161°, -149.42281°
Legal Description: S005N001W27
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward C-7
AWC Stream #: 244-30-10010-2225-3013
Stream Name: Moose Creek

Elevation:

Site Comments: Outlet pool ponded by Trail Lake.

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey KPCS1-EK051

Observers: Cecil Rich, William Glick, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Outlet pool ponded by Trail Lake. We removed beaver debris blocking right pipe and part of left pipe.

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 120.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Boulder
Outlet Substrate: Cobble
InletOutlet
Width(ft):10.71 11.08
Height(ft):7.0 7.1
Apron Length(ft):
Water Depth(ft):1.5 1.75
Rustline Height(ft):
Substrate Depth(ft):0.21 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.06
Outfall Type:
Constriction Ratio: 0.82
Culvert Gradient: 0.09%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 120.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Boulder
Outlet Substrate: Cobble
InletOutlet
Width(ft):11.08 11.13
Height(ft):7.0 7.08
Apron Length(ft):
Water Depth(ft):1.0 1.69
Rustline Height(ft):
Substrate Depth(ft):0.31 0.33
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.06
Outfall Type:
Constriction Ratio: 0.82
Culvert Gradient: 0.14%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 50.0 50.80
Upstream ordinary high water 5.0 31.60
Upstream ordinary high water 45.0 25.70
Upstream ordinary high water 109.0 27.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 84.92
D/S Thalweg 0.00 50.0 85.79
D/S Water Surface Elev 0.00 50.0 89.15
D/S OHW Elev 0.00 50.0 89.31
OHW Left Bank 45.00 5.0 89.17
Max Pool Depth 45.00 5.0 85.62
Outlet Invert 2 50.00 0.0 87.42
Outlet Invert 1 50.00 0.0 87.50
Outlet Thalweg 1 50.00 0.0 87.50
Outlet Thalweg 2 50.00 0.0 87.75
Outlet Rustline Height 1 50.00 0.0 89.25
Outlet Rustline Height 2 50.00 0.0 89.37
Outlet Culvert Top 2 50.00 0.0 94.50
Outlet Culvert Top 1 50.00 0.0 94.60
Road Elev 110.00 112.22
Road Elev 110.00 112.22
Inlet Culvert Top 1 170.00 0.0 94.61
Inlet Culvert Top 2 170.00 0.0 94.59
Inlet Rustline Height 2 170.00 0.0 90.48
Inlet Rustline Height 1 170.00 0.0 89.42
Inlet Thalweg 2 170.00 0.0 87.90
Inlet Thalweg 1 170.00 0.0 87.82
Inlet Culvert Invert (estimated) 2 170.00 0.0 87.59
Inlet Culvert Invert 1 170.00 0.0 87.61
U/S Thalweg 2 171.00 1.0 87.65
U/S Thalweg 1 171.00 1.0 87.77
U/S Thalweg 1 175.00 5.0 87.04
U/S Thalweg 2 175.00 5.0 88.25
U/S Water Surface Elev 2 175.00 5.0 89.38
U/S Water Surface Elev 1 175.00 5.0 89.34
U/S OHW elevation 2 175.00 5.0 89.69
U/S OHW elevation 1 175.00 5.0 89.94
U/S Thalweg 1 191.80 21.8 87.50
U/S Thalweg 2 192.20 22.2 87.84
U/S Thalweg 215.00 45.0 86.82
U/S Headwater 215.00 45.0 89.79
U/S Water Surface Elev 215.00 45.0 89.40
U/S Water Surface Elev 279.00 109.0 89.52
U/S Headwater 279.00 109.0 89.63
U/S Thalweg 279.00 109.0 87.09

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): 2.15
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.45

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 16 Fish Measured: 8 Fork Lengths (mm) Min: 75 Max: 145 Mean: 101
Collected/Observed by Gear Type: Downstream Minnow Trap (4)  Upstream Minnow Trap (12)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 23 Fish Measured: 10 Fork Lengths (mm) Min: 45 Max: 79 Mean: 59
Collected/Observed by Gear Type: Downstream Minnow Trap (23)  

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