Fish Passage Site 20401191

Coordinates (dec. deg.): 61.43481°, -148.78177°
Legal Description: S016N004E32
Region: South Central
Road Name: Knik River Road

Datum: WGS84
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 MSB09-KRR01

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height gray
  3. Constriction ratio gray
  4. Culvert sagging in middle
  5. Culvert is poorly aligned

Comments: Photos and fish capture data added from 9/15/16 site visit for Sampling Unmapped Streams in the MSB project.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 40.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 83.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.0 4.0
Height(ft):4.0 4.0
Apron Length(ft):
Water Depth(ft): 0.16
Rustline Height(ft):0.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.25
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.73
Culvert Gradient: 9.31%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height gray
  3. Constriction ratio gray
  4. Culvert sagging in middle
  5. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 20.0 5.00
Downstream ordinary high water 60.0 6.50
Upstream ordinary high water 130.0 5.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev (WS of outlet pool) 1 95.75
U/S Headwater 1 99.94
D/S Grade Ctrl (Thalweg) 1 0.00 8.0 93.54
D/S Water Surface Elev (@GP) 1 0.00 8.0 93.78
D/S Water Surface Elev (@TWC) 1 4.70 3.3 95.75
D/S Tailcrest or 1st Thalweg 1 4.70 3.3 95.47
D/S Thalweg (bottom of out pool) 1 6.70 1.3 95.17
D/S Thalweg 1 8.00 0.0 95.34
Outlet Invert 1 8.00 0.0 95.84
Road Elev 1 28.00 105.01
Inlet Culvert Invert 1 48.40 0.0 99.60
U/S Grade Ctrl (Thalweg) (1st TC u/s) 1 50.60 2.2 99.79
U/S Water Surface Elev 1 50.60 2.2 99.98

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): 0.75
Comments: no fish caught; 75ft d/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.75
Comments: no fish caught; 50ft d/s

Fish Observations

No fish observations occurred during this survey.

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