Fish Passage Site 20300983

Coordinates (dec. deg.): 59.93692°, -151.73756°
Legal Description: S003S014W08
Region: South Central
Road Name: Sterling Highway

Datum: NAD83
Quad Name / ITM: Seldovia D-5
AWC Stream #:
Stream Name: Happy Creek

Elevation:

Site Comments: Very steep embankment on upstream side but well vegetated with alder. Falls near mouth create migratory barrier near mouth to anadromous fish.

Survey Date: Jul 02, 2001

Survey KPCS1-NK018

Observers: Cecil Rich, Tracy Smith, Michael Lund

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Upstream thalweg aims to left side at headwll. Very steep embankment on upstream side but well vegetated with alder. Falls near mouth create migratory barrier near mouth to anadromous fish - no salmon.

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 118.17
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: None
Outlet Substrate: None
InletOutlet
Width(ft):7.6 7.8
Height(ft):8.69 8.59
Apron Length(ft):
Water Depth(ft):1.0 1.0
Rustline Height(ft):
Substrate Depth(ft):0.0 0.39
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.06
Outfall Type:
Constriction Ratio: 0.73
Culvert Gradient: 0.74%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 41.9 19.40
Downstream ordinary high water 104.0 12.20
Downstream ordinary high water 163.0 12.00
Upstream ordinary high water 5.0 16.60
Upstream ordinary high water 59.0 11.81
Upstream ordinary high water 149.0 9.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 89.96
D/S Thalweg 0.00 163.0 92.93
D/S OHW Elev 0.00 163.0 93.62
D/S Water Surface Elev 0.00 163.0 93.23
D/S Thalweg 59.00 104.0 93.33
D/S Water Surface Elev 59.00 104.0 93.94
D/S OHW Elev 59.00 104.0 94.17
D/S Water Surface Elev 124.00 39.0 94.27
OHW Left Bank 124.00 39.0 94.36
D/S Tailcrest or 1st Thalweg 124.00 39.0 93.10
OHW Left Bank 158.00 5.0 95.02
OHW Left Bank 158.00 5.0 94.27
Max Pool Depth 158.00 5.0 91.19
Outlet Thalweg 1 163.00 0.0 92.94
Outlet Invert 1 163.00 0.0 93.33
Outlet Rustline Height 1 163.00 0.0 95.35
Outlet Culvert Top 1 163.00 0.0 101.92
Road Elev 222.00 123.23
Road Elev 222.00 123.29
Inlet Culvert Top 1 281.00 0.0 102.90
Inlet Rustline Height 1 281.00 0.0 97.03
Inlet Culvert Invert 1 281.00 0.0 94.21
Inlet Thalweg 1 281.00 0.0 94.21
U/S Thalweg 1 282.00 1.0 94.21
U/S Water Surface Elev 1 286.00 5.0 95.32
U/S Thalweg 1 286.00 5.0 94.50
U/S OHW elevation 1 286.00 5.0 96.07
U/S Thalweg 1 296.20 15.2 94.28
U/S Headwater 340.00 59.0 96.25
U/S Thalweg 340.00 59.0 95.36
U/S Water Surface Elev 340.00 59.0 95.84
U/S Thalweg 430.00 149.0 95.57
U/S Headwater 430.00 149.0 96.94
U/S Water Surface Elev 430.00 149.0 96.23

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): 2.2
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.25

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 34 Fish Measured: 13 Fork Lengths (mm) Min: 77 Max: 165 Mean: 107
Collected/Observed by Gear Type: Downstream Minnow Trap (28)  Upstream Minnow Trap (6)  

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