Fish Passage Site 20300932

Coordinates (dec. deg.): 60.52404°, -149.63944°
Legal Description: S005N002W16
Region: South Central
Road Name: Sterling Highway

Datum: NAD83
Quad Name / ITM: Seward C-8
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Aug 22, 2001

Survey KPCS1-EK048

Observers: Cecil Rich, William Glick

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: about three years old. In channel is channelized abou 20 feet upstream and degrading channel - produced lots of salmon spawning habitat downstream. No tailcrest distance.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 113.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.6
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Sand
Outlet Substrate: Sand
InletOutlet
Width(ft):6.4 6.5
Height(ft):5.15 5.15
Apron Length(ft):
Water Depth(ft):0.9 1.45
Rustline Height(ft):
Substrate Depth(ft):0.41 0.46
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.39
Outfall Type:
Constriction Ratio: 0.93
Culvert Gradient: 0.83%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleGravel
Subdominant:CobbleGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 21.40
Downstream ordinary high water 63.0 17.20
Downstream ordinary high water 100.0 12.00
Upstream ordinary high water 5.0 5.80
Upstream ordinary high water 50.0 6.90
Upstream ordinary high water 100.0 6.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Tailcrest or 1st Thalweg 86.85
D/S Water Surface Elev 87.69
OHW Left Bank 87.77
D/S Water Surface Elev 0.00 100.0 87.10
D/S OHW Elev 0.00 100.0 87.31
D/S Thalweg 0.00 100.0 86.50
D/S Water Surface Elev 37.00 63.0 87.62
D/S OHW Elev 37.00 63.0 87.75
D/S Thalweg 37.00 63.0 87.23
OHW Left Bank 95.00 5.0 87.75
OHW Left Bank 95.00 5.0 87.71
Max Pool Depth 95.00 5.0 85.87
D/S Thalweg 95.00 5.0 85.87
Outlet Invert 1 100.00 0.0 85.87
Outlet Thalweg 1 100.00 0.0 86.33
Outlet Rustline Height 1 100.00 0.0 87.50
Outlet Culvert Top 1 100.00 0.0 91.33
Road Elev 156.50 97.17
Road Elev 156.50 87.17
Inlet Culvert Invert 1 213.00 0.0 86.81
Inlet Thalweg 1 213.00 0.0 86.94
Inlet Culvert Top 1 213.00 0.0 91.96
Inlet Rustline Height 1 213.00 0.0 87.79
U/S Thalweg 1 214.00 1.0 87.21
U/S Thalweg 1 218.00 5.0 87.62
U/S Water Surface Elev 1 218.00 5.0 88.33
U/S OHW elevation 1 218.00 5.0 88.60
U/S Thalweg 1 225.90 12.9 87.89
U/S Thalweg 263.00 50.0 88.39
U/S Water Surface Elev 263.00 50.0 89.21
U/S Water Surface Elev 313.00 100.0 89.75
U/S Thalweg 313.00 100.0 88.94

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): 1.3
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.42

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 55 Fish Measured: 20 Fork Lengths (mm) Min: 64 Max: 132 Mean: 82
Collected/Observed by Gear Type: Downstream Minnow Trap (32)  Upstream Minnow Trap (23)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 44 Fish Measured: 20 Fork Lengths (mm) Min: 47 Max: 90 Mean: 62
Collected/Observed by Gear Type: Downstream Minnow Trap (20)  Upstream Minnow Trap (24)  

Photos

No photos available.

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