Fish Passage Site 20100571

Coordinates (dec. deg.): 62.10777°, -145.52042°
Legal Description: C004N002W24
Region: South Central
Road Name: Glenn Highway

Datum: NAD83
Quad Name / ITM: Gulkana A-4
AWC Stream #:
Stream Name: Trooper Creek

Elevation:

Site Comments: Moose Creek Tributary

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 CRWP17-Glen1

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Beaver Activity

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Culvert has been replaced since 2011 survey. Wetland complex upstream. Numerous long nose suckers and Arctic grayling caught.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 155.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):8.35 8.35
Height(ft):8.22 8.25
Apron Length(ft):
Water Depth(ft): 0.01
Rustline Height(ft):0.85
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.63
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 1.14
Culvert Gradient: 0.40%
Max Slope:
Max Slope Length:
 

Comments: Low water in culvert during low flows.
  Culvert Observations:
  1. Outfall height red
  2. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:Gravel
Stream Slope(deg.):0.5
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 5.90
Downstream ordinary high water 9.10
Downstream ordinary high water 6.90
Upstream ordinary high water 10.10

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.00
D/S Water Surface Elev 0.00 86.06
D/S Grade Ctrl (Thalweg) 0.00 84.86
D/S Tailcrest or 1st Thalweg 51.00 85.66
D/S Water Surface Elev 51.00 86.06
Max Pool Depth 70.00 82.92
D/S Water Surface Elev 70.00 86.06
Outlet Invert 110.00 86.68
D/S Water Surface Elev 110.00 86.69
Outlet Culvert Top 110.00 94.93
Inlet Culvert Top 266.00 95.54
Inlet Culvert Invert (on pipe) 266.00 87.32
U/S Water Surface Elev 266.00 87.36
U/S Grade Ctrl (Thalweg) 283.00 85.88
U/S Water Surface Elev 283.00 87.37
U/S Grade Ctrl (Thalweg) 316.00 86.68
U/S Water Surface Elev 316.00 87.37

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): 0.016666668
Comments: Soak duration 6 hours for all traps, placement not recorded
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0
 
Gear Type: Minnow Trap (C) Trap Duration(h): 0
 
Gear Type: Minnow Trap (D) Trap Duration(h): 0
 
Gear Type: Minnow Trap (E) Trap Duration(h): 0
 
Gear Type: Minnow Trap (F) Trap Duration(h): 0

Fish Observations

Species: sculpin-unspecified Life History: Unknown
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 80 Max: 80 Mean: 80
Collected/Observed by Gear Type: Not Recorded Minnow Trap (1)  
 
Species: juvenile longnose sucker Life History: Resident
Total Fish Observed: 7 Fish Measured: 5 Fork Lengths (mm) Min: 80 Max: 120 Mean: 94
Collected/Observed by Gear Type: Not Recorded Minnow Trap (3)  Not Recorded Minnow Trap (2)  Not Recorded Minnow Trap (1)  Not Recorded Minnow Trap (1)  
 
Species: juvenile Arctic grayling Life History: Resident
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 67 Max: 90 Mean: 78
Collected/Observed by Gear Type: Not Recorded Minnow Trap (1)  Not Recorded Minnow Trap (2)  

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