Fish Passage Site 20300959

Coordinates (dec. deg.): 60.74150°, -149.25989°
Legal Description: S008N001E34
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward C-7
AWC Stream #:
Stream Name: Spokane Creek

Elevation:

Site Comments: None

Survey Date: Oct 03, 2001

Survey KPCS1-EK093

Observers: Cecil Rich, James Maple, Tom Sigurdsson

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Right outlet filled with gravel about halfway up width. Concrete headwall & steel brush guards at inlet. Baffles in left culv. that form 2 large pools - hinder barrel vel. Measurement.

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 119.0
Inlet Type: Headwall
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Boulder
InletOutlet
Width(ft):9.5 9.0
Height(ft):6.0 4.17
Apron Length(ft):
Water Depth(ft):0.83 0.5
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present:
Embedded?: No
Outfall Height: -0.47
Outfall Type:
Constriction Ratio: 0.72
Culvert Gradient: 3.85%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 120.0
Inlet Type: Headwall
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: Boulder
InletOutlet
Width(ft):5.5 5.5
Height(ft):4.35 2.18
Apron Length(ft):
Water Depth(ft):0.21 0.17
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.47
Outfall Type:
Constriction Ratio: 0.72
Culvert Gradient: 4.86%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderBoulder
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 6.5 32.50
Downstream ordinary high water 90.0 17.80
Downstream ordinary high water 109.0 17.00
Upstream ordinary high water 5.0 26.60
Upstream ordinary high water 50.0 14.30
Upstream ordinary high water 100.0 27.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 109.0 76.71
D/S Water Surface Elev 0.00 109.0 77.29
D/S OHW Elev 0.00 109.0 77.58
D/S OHW Elev 19.00 90.0 78.31
D/S Water Surface Elev 19.00 90.0 77.52
D/S Thalweg 19.00 90.0 76.77
D/S Tailcrest or 1st Thalweg 102.50 6.5 80.50
OHW Left Bank 102.50 6.5 83.21
D/S Water Surface Elev 102.50 6.5 81.73
OHW Left Bank 104.00 5.0 83.21
Max Pool Depth 104.00 5.0 81.33
D/S Thalweg 104.00 5.0 81.33
OHW Left Bank 104.00 5.0 82.08
Outlet Invert (Open bottom (used thalweg)) 2 109.00 0.0 81.44
Outlet Thalweg 2 109.00 0.0 81.44
Outlet Culvert Top 2 109.00 0.0 83.62
Outlet Culvert Top 1 109.00 0.0 85.46
Outlet Invert (Open bottom (used thalweg)) 1 109.00 0.0 81.29
Outlet Thalweg 1 109.00 0.0 81.29
Outlet Rustline Height 1 109.00 0.0 82.04
Road Elev 168.50 94.81
Road Elev 168.50 94.90
Inlet Culvert Top 2 228.00 0.0 91.62
Inlet Culvert Top 1 228.00 0.0 91.87
Inlet Rustline Height 1 228.00 0.0 86.79
Inlet Culvert Invert 2 228.00 0.0 87.27
Inlet Thalweg 2 228.00 0.0 87.27
Inlet Rustline Height 2 228.00 0.0 87.52
Inlet Culvert Invert 1 228.00 0.0 85.87
Inlet Thalweg 1 228.00 0.0 85.87
U/S Thalweg 1 229.00 1.0 86.19
U/S Thalweg 2 229.00 1.0 87.37
U/S Water Surface Elev 1 233.00 5.0 87.42
U/S Thalweg 2 233.00 5.0 86.98
U/S Thalweg 1 233.00 5.0 87.00
U/S OHW elevation 1 233.00 5.0 87.79
U/S Water Surface Elev 2 233.00 5.0 88.08
U/S OHW elevation 2 233.00 5.0 88.33
U/S Thalweg 2 239.00 11.0 87.96
U/S Thalweg 1 246.50 18.5 88.17
U/S Thalweg 278.00 50.0 89.42
U/S Water Surface Elev 278.00 50.0 89.81
U/S Headwater 278.00 50.0 89.92
U/S Thalweg 328.00 100.0 92.44
U/S Water Surface Elev 328.00 100.0 93.25
U/S Headwater 328.00 100.0 93.98

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): 1.1
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.1

Fish Observations

Species: no fish collected or observed Life History: Not Applicable
Total Fish Observed: 0 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (0)  Upstream Minnow Trap (0)  

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