Fish Passage Site 20401355

Coordinates (dec. deg.): 61.57862°, -149.28677°
Legal Description: S017N001E09
Region: South Central
Road Name: Lower Road

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10260-2019-3041
Stream Name: Wasilla Creek tributary

Elevation:

Site Comments: Lower Road - near Hyer Road

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-WA052

Observers: Olof Jacobsson, Edward Weiss, Joe Conner

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): 32.0
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: Sand
Outlet Substrate: Sand
InletOutlet
Width(ft):2.0 1.6
Height(ft):2.0 2.3
Apron Length(ft):
Water Depth(ft):0.4 0.3
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio:
Culvert Gradient: 0.84%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 1.4 3.00
Downstream ordinary high water 75.0 6.70
Downstream ordinary high water 90.0 7.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Culvert Top 1 94.13
Inlet Culvert Top 1 94.21
D/S Thalweg 0.00 90.0 89.66
D/S Thalweg 15.00 75.0 90.40
D/S Tailcrest or 1st Thalweg 88.60 1.4 91.80
D/S Thalweg 89.10 0.9 91.54
Outlet Thalweg 1 90.00 0.0 91.62
Outlet Invert 1 90.00 0.0 91.91
Road Elev 106.00 94.53
Road Elev 106.00 94.67
Inlet Thalweg 1 122.00 0.0 92.01
Inlet Culvert Invert 1 122.00 0.0 92.18
U/S Thalweg 1 123.50 1.5 91.68
U/S Thalweg 227.00 105.0 91.67

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

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 46 Fish Measured: 10 Fork Lengths (mm) Min: 71 Max: 105 Mean: 90
Collected/Observed by Gear Type: Upstream Minnow Trap (46)  

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