Fish Passage Site 20601543

Coordinates (dec. deg.): 61.05783°, -151.40369°
Legal Description: S011N012W09
Region: South Central
Road Name: Tyonek Timber Road

Datum: NAD83
Quad Name / ITM: Tyonek A-4
AWC Stream #:
Stream Name: Bird Lake outlet

Elevation:

Site Comments: Bird Lake upstream of crossing.

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 TYCS1-TY017

Observers: Cecil Rich, Michael Anderson, Joe Buckwalter

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Datum = WGS84. gps accuracy = 25.2 feet. Bird Lake upstream of crossing.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 30.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.625
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):3.05 3.3
Height(ft):3.55 3.14
Apron Length(ft):
Water Depth(ft):0.46 0.58
Rustline Height(ft):
Substrate Depth(ft):0.16 0.25
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.23
Outfall Type:
Constriction Ratio:
Culvert Gradient: 1.77%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Sediment accumulation

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 0.7 6.00
Downstream ordinary high water 58.0 8.30
Downstream ordinary high water 110.0 3.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Tailcrest or 1st Thalweg 91.75
D/S Thalweg 0.00 110.0 88.80
D/S Water Surface Elev 0.00 110.0 89.07
D/S OHW Elev 0.00 110.0 89.42
D/S Thalweg 52.00 58.0 90.95
D/S Water Surface Elev 52.00 58.0 91.22
D/S OHW Elev 52.00 58.0 91.45
OHW Left Bank 109.30 0.7 92.05
OHW Left Bank 109.30 0.7 92.33
Outlet Culvert Top 1 110.00 0.0 94.38
Outlet Rustline Height 1 110.00 0.0 92.18
D/S Thalweg (=OPM1) 110.00 0.0 91.49
Outlet Thalweg 1 110.00 0.0 91.49
Outlet Invert 1 110.00 0.0 91.24
Road Elev 125.00 96.32
Road Elev 125.00 96.56
Inlet Culvert Top 1 140.00 0.0 95.32
Inlet Culvert Invert 1 140.00 0.0 91.77
Inlet Thalweg 1 140.00 0.0 91.93
U/S Thalweg 1 141.00 1.0 91.99
U/S OHW elevation 1 141.00 1.0 92.30
U/S Water Surface Elev 1 145.00 5.0 92.30
U/S Thalweg 1 145.00 5.0 91.07
U/S Thalweg (wetland pond upstream-no chan.) 1 146.10 6.1 90.95

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, 1/4 in. Mesh (B) Trap Duration(h): 0
 
Gear Type: Visual Observation, Ground (C) Trap Duration(h): 1

Fish Observations

Species: juvenile rainbow trout Life History: Resident
Total Fish Observed: 2 Fish Measured: 1 Fork Lengths (mm) Min: 80 Max: 80 Mean: 80
Collected/Observed by Gear Type: Downstream Minnow Trap, 1/4 in. Mesh (2)  
 
Species: sculpin-unspecified Life History: Resident
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Visual Observation, Ground (1)  
 
Species: general fish observation, no species information Life History: Not Recorded
Total Fish Observed: 4 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Visual Observation, Ground (4)  

Photos

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