Fish Passage Site 20401360

Coordinates (dec. deg.): 61.56627°, -149.31290°
Legal Description: S017N001E17
Region: South Central
Road Name: Alaska Railroad

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10260-2019-3038
Stream Name: Wasilla Creek tributary

Elevation:

Site Comments: Culvert is located on Alaska RR near Fairview Loop Rd.

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 MSCS1-WA080

Observers: Edward Weiss, Olof Jacobsson

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft):
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft):0.5 0.9
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.55
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 49.0 1.50
Downstream ordinary high water 110.0 5.50
Upstream ordinary high water 1.0 7.00
Upstream ordinary high water 33.0 5.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 110.0 90.57
U/S Thalweg 91.30
D/S Thalweg 49.0 92.37
Outlet Invert 1 0.0 92.67
D/S Thalweg 38.0 92.74
Outlet Thalweg 1 0.0 93.02
Inlet Culvert Invert 1 0.0 93.11
Inlet Thalweg 1 0.0 93.71
U/S Thalweg 33.0 94.03
U/S Thalweg 1 1.0 94.06
Outlet Culvert Top 1 95.70
Inlet Culvert Top 1 95.98
Road Elev 110.04
Road Elev 110.47

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
Comments: Fast water set.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 20
Comments: Fast water set.

Fish Observations

Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 2 Fish Measured: 1 Fork Lengths (mm) Min: 138 Max: 138 Mean: 138
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 6 Fish Measured: 3 Fork Lengths (mm) Min: 62 Max: 85 Mean: 76
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (4)  
 
Species: juvenile/adult sculpin-unspecified Life History: Resident
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 58 Max: 72 Mean: 65
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (2)  

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