Fish Passage Site 20300956

Coordinates (dec. deg.): 60.74491°, -149.36590°
Legal Description: S008N001W36
Region: South Central
Road Name: Seward Highway

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

Elevation:

Site Comments: Outlet side is beaver meadow with defined "E" channel.

Survey Date: Oct 02, 2001

Survey KPCS1-EK090

Observers: Cecil Rich, James Maple, Tom Sigurdsson

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Outlet side is beaver meadow with defined "E" channel.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 113.7
Inlet Type: Flared Inlet
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: Cobble
InletOutlet
Width(ft):6.3 6.0
Height(ft):2.6 2.12
Apron Length(ft):
Water Depth(ft):0.35 0.9
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.07
Outfall Type:
Constriction Ratio: 1.13
Culvert Gradient: 0.42%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:NoneNone
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 55.0 5.80
Downstream ordinary high water 70.0 5.40
Downstream ordinary high water 100.0 7.00
Upstream ordinary high water 5.0 8.30
Upstream ordinary high water 50.0 5.20
Upstream ordinary high water 100.0 6.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 86.96
D/S OHW Elev 0.00 100.0 89.08
D/S Water Surface Elev 0.00 100.0 89.08
D/S OHW Elev 30.00 70.0 89.06
D/S Water Surface Elev 30.00 70.0 89.06
D/S Thalweg 30.00 70.0 87.62
D/S Tailcrest or 1st Thalweg 45.00 55.0 88.12
D/S Water Surface Elev 45.00 55.0 89.12
OHW Left Bank 45.00 55.0 89.33
OHW Left Bank 95.00 5.0 89.33
OHW Left Bank 95.00 5.0 89.29
Max Pool Depth 95.00 5.0 87.04
D/S Thalweg 95.00 5.0 87.04
Outlet Invert 1 100.00 0.0 88.46
Outlet Thalweg 1 100.00 0.0 88.46
Outlet Rustline Height 1 100.00 0.0 89.25
Outlet Culvert Top 1 100.00 0.0 90.58
Road Elev 156.50 96.77
Road Elev 156.50 96.87
Inlet Culvert Top 1 213.00 0.0 91.54
Inlet Rustline Height 1 213.00 0.0 89.52
Inlet Culvert Invert 1 213.00 0.0 88.94
Inlet Thalweg 1 213.00 0.0 88.94
U/S Thalweg 1 214.00 1.0 88.94
U/S Thalweg 1 218.00 5.0 89.04
U/S OHW elevation 1 218.00 5.0 89.62
U/S Water Surface Elev 1 218.00 5.0 89.27
U/S Thalweg 1 225.40 12.4 89.21
U/S Thalweg 263.00 50.0 88.67
U/S Water Surface Elev 263.00 50.0 89.48
U/S Headwater 263.00 50.0 89.69
U/S Headwater 313.00 100.0 89.67
U/S Water Surface Elev 313.00 100.0 89.50
U/S Thalweg 313.00 100.0 88.60

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): 0.55
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 63 Max: 82 Mean: 72
Collected/Observed by Gear Type: Downstream Minnow Trap (4)  
 
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: Upstream Minnow Trap (0)  

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