Fish Passage Site 20400601

Coordinates (dec. deg.): 61.45677°, -148.84026°
Legal Description: S016N003E24
Region: South Central
Road Name: Knik River Road

Datum: NAD83
Quad Name / ITM: Anchorage B-5
AWC Stream #:
Stream Name: Friday Creek Tributary

Elevation:

Site Comments: None

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 MSB23-MS003

Project Supervisor: Michael Mazzacavallo, Alaska Department of Fish and Game — Anchorage, AK
Observers: Michael Mazzacavallo, Beth Evers, Kat Leavitt

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Constriction ratio red
  3. Beaver Activity

Comments: Inlet is connection from pond outflows to another pond; Local individual reports seeing fish in the past on the inlet side pond; evidence of historic beaver dams

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 58.83
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Sand
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.9 3.0
Height(ft):3.1 2.95
Apron Length(ft):
Water Depth(ft):0.0 0.43
Rustline Height(ft):1.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 1.0
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.44
Culvert Gradient: 1.12%
Max Slope:
Max Slope Length:
 

Comments: slight compound gradient at pipe inlet
  Culvert Observations:
  1. Outfall height red
  2. Constriction ratio red
  3. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:OrganicOrganic
Stream Slope(deg.):0.21
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 60.0 7.00
Downstream ordinary high water 118.0 4.80
Downstream ordinary high water 130.0 7.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
U/S Water Surface Elev (Pond WS) 97.48
Road Elev 100.28
D/S Thalweg 0.00 93.00
D/S Water Surface Elev 0.00 94.08
D/S Water Surface Elev 78.00 94.12
D/S Thalweg 78.00 92.91
D/S Water Surface Elev 98.00 93.24
D/S Thalweg 98.00 94.15
D/S Tailcrest or 1st Thalweg 112.00 94.02
Max Pool Depth 126.00 91.55
D/S Water Surface Elev 129.00 94.35
Outlet Invert 131.00 94.93
D/S Water Surface Elev 131.00 95.36
Outlet Culvert Top 131.00 97.98
Inlet Culvert Top 189.83 98.64
Inlet Culvert Invert 190.43 95.58
U/S Water Surface Elev 190.43 96.38

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov