Fish Passage Site 20603493

Coordinates (dec. deg.): 61.08731°, -151.22026°
Legal Description: S012N011W34
Region: South Central
Road Name: Logging Road

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

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 UPDATE-TYK07

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Mark Eisenman, Robert Pype

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Structural Problem
  3. Constriction ratio gray

Comments: Nice habitat upstream and downstream. Downstream looks like it's had lots of road fill washed downstream. Large holes near outlet on top of pipe funneling road fill. One salmon caught, lots of rainbow trout and Dolly Varden. Site should be re-trapped for additional salmon.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Red
 
Length(ft): 38.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 1
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.1 3.0
Height(ft):3.0 2.11
Apron Length(ft):
Water Depth(ft): 0.38
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.69
Culvert Gradient: 2.04%
Max Slope:
Max Slope Length:
 

Comments: Outlet has been severly damaged with large holes at the top of culvert taking in road fill. Downstream look to have a lot of road fill in the streambed. Nice habitat upstream. 4 traps set overnight.

  Culvert Observations:
  1. Culvert gradient red
  2. Structural Problem
  3. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:GravelCobble
Stream Slope(deg.):0.06
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Upstream ordinary high water 50.0 4.50
Upstream ordinary high water 100.0 3.70
Upstream ordinary high water 150.0 5.30
Upstream ordinary high water 200.0 4.30

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Road Elev 98.02
D/S Thalweg 0.00 91.92
D/S Water Surface Elev 0.00 92.53
D/S Grade Ctrl (Thalweg) 19.00 92.32
D/S Water Surface Elev 19.00 92.94
D/S Tailcrest or 1st Thalweg 57.00 93.55
D/S Water Surface Elev 57.00 93.93
Max Pool Depth 64.00 92.70
Outlet Pool Water Elev 64.00 93.96
Outlet Invert (On pipe) 69.00 93.53
D/S Water Surface Elev 69.00 93.91
Outlet Culvert Top 69.00 96.49
Inlet Culvert Invert (On pipe, 1st resting) 107.30 94.31
U/S Water Surface Elev 107.30 94.81
Inlet Culvert Top 107.30 97.14
U/S Thalweg 115.30 94.09
U/S Water Surface Elev 115.30 94.99
U/S Thalweg 160.30 94.07
U/S Water Surface Elev (Stream gradient) 160.30 94.98
U/S Thalweg 245.30 93.93
U/S Water Surface Elev (Stream gradient) 245.30 95.03

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): 2.6
Comments: Trap set about 30 feet upstream
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.6
Comments: Trap set about 15 feet downstream of culvert
 
Gear Type: Minnow Trap (C) Trap Duration(h): 18.0
 
Gear Type: Minnow Trap (D) Trap Duration(h): 18.0

Fish Observations

Species: juvenile rainbow trout Life History: Unknown
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 65 Max: 75 Mean: 71
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  Upstream Minnow Trap (1)  Downstream Minnow Trap (1)  
 
Species: juvenile Chinook salmon Life History: Anadromous
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 112 Max: 112 Mean: 112
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  
 
Species: juvenile Dolly Varden Life History: Unknown
Total Fish Observed: 4 Fish Measured: 4 Fork Lengths (mm) Min: 60 Max: 90 Mean: 82
Collected/Observed by Gear Type: Downstream Minnow Trap (3)  Upstream Minnow Trap (1)  

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