Fish Passage Site 20601555

Coordinates (dec. deg.): 61.05074°, -151.30024°
Legal Description: S011N011W18
Region: South Central
Road Name:

Datum: NAD83
Quad Name / ITM: Tyonek A-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: . Culvert separates wetland areas - no channel. Lake DS, pond US.

Survey Date: Jun 20, 2002

Survey TYCS1-TY029

Observers: Cecil Rich, Michael Anderson, Joe Buckwalter

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Datum = WGS84. 17.9 ft gps accuracy. Culvert separates wetland areas - no channel. Lake DS, pond US.

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: None
InletOutlet
Width(ft):3.08 2.8
Height(ft):2.42 3.04
Apron Length(ft):
Water Depth(ft):0.14 0.06
Rustline Height(ft):
Substrate Depth(ft): 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.09
Outfall Type:
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Woody Debris

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 7.5 91.34
Max Pool Depth 1 2.50 5.0 91.51
OHW Left Bank 6.50 1.0 92.73
OHW Left Bank 6.50 1.0 93.08
Outlet Rustline Height 1 7.50 0.0 93.10
Outlet Invert 1 7.50 0.0 92.76
Outlet Thalweg 1 7.50 0.0 92.64
Outlet Culvert Top 1 7.50 0.0 95.80
Road Elev 22.50 96.05
Road Elev 22.50 96.28
Inlet Rustline Height 1 37.50 0.0 93.69
Inlet Culvert Top 1 37.50 0.0 95.68
Inlet Thalweg 1 37.50 0.0 93.26
U/S Thalweg 1 38.50 1.0 93.08
U/S OHW elevation 1 38.50 1.0 93.62
U/S Thalweg 1 42.50 5.0 90.86
U/S Water Surface Elev 1 42.50 5.0 93.37

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 (A) Trap Duration(h): 1
 
Gear Type: Minnow Trap, 1/4 in. Mesh (B) Trap Duration(h): 1

Fish Observations

Species: ninespine stickleback Life History: Resident
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap, 1/4 in. Mesh (1)  
 
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, 1/4 in. Mesh (0)  

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