Fish Passage Site 20103761

Coordinates (dec. deg.): 62.10398°, -145.64973°
Legal Description: C004N002W30
Region: South Central
Road Name: Spur Road

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

Elevation:

Site Comments: Tributary to Moose Creek. Upstream from GISp2.

Survey Date: Sep 12, 2016

Survey CRWP17-GISp3

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Constriction ratio gray
  2. Culvert is too short
  3. Road bank erosion

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Small wooded upland channel.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 21.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate:
Outlet Substrate: None
InletOutlet
Width(ft):2.9 3.1
Height(ft):2.41 2.78
Apron Length(ft):
Water Depth(ft): 0.39
Rustline Height(ft):1.9
Substrate Depth(ft):0.3 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.58
Culvert Gradient: -1.30%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert is too short
  3. Road bank erosion
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 19.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 4
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.1 2.05
Height(ft):2.03 2.03
Apron Length(ft):
Water Depth(ft): 0.22
Rustline Height(ft):0.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.11
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.58
Culvert Gradient: -0.70%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert is too short
  3. Road bank erosion
  4. Outfall height gray
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 18.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.74
Condition Rating(1-5): 2
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.9 2.5
Height(ft):2.36 2.51
Apron Length(ft):
Water Depth(ft): 0.74
Rustline Height(ft):1.2
Substrate Depth(ft):0.5 0.7
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.58
Culvert Gradient: 2.80%
Max Slope:
Max Slope Length:
 

Comments: Outlet damage
  Culvert Observations:
  1. Culvert gradient red
  2. Constriction ratio gray
  3. Road bank erosion
  4. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleGravel
Subdominant:SandSilt/Clay
Stream Slope(deg.):1
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 7.80
Downstream ordinary high water 6.90
Downstream ordinary high water 7.40
Upstream ordinary high water 7.90
Upstream ordinary high water 7.60
Upstream ordinary high water 8.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.00
D/S Grade Ctrl (Thalweg) 0.00 94.47
D/S Water Surface Elev 0.00 96.13
D/S Tailcrest or 1st Thalweg 20.00 96.01
D/S Water Surface Elev 20.00 96.65
Max Pool Depth 26.00 94.56
Outlet Pool Water Elev 26.00 96.65
D/S Water Surface Elev 3 34.00 96.65
Outlet Invert 2 34.00 96.54
Outlet Culvert Top (damaged) 3 34.00 98.42
Outlet Culvert Top 2 34.00 98.57
Outlet Culvert Top 1 34.00 99.06
Outlet Invert 3 34.00 95.91
Outlet Invert 1 34.00 96.28
D/S Water Surface Elev 1 34.00 96.67
D/S Water Surface Elev 2 34.00 96.76
U/S Water Surface Elev 3 54.00 97.00
U/S Water Surface Elev 1 54.00 97.01
U/S Water Surface Elev 2 54.00 97.01
Inlet Culvert Invert 1 54.00 96.38
Inlet Culvert Invert 2 54.00 96.39
Inlet Culvert Top 2 54.00 98.42
Inlet Culvert Top 1 54.00 98.79
Inlet Culvert Top 3 54.00 98.94
Inlet Culvert Invert 3 54.00 96.58
U/S Grade Ctrl (Thalweg) 69.00 96.07
U/S Water Surface Elev 69.00 97.11
U/S Water Surface Elev 107.00 97.58
U/S Grade Ctrl (Thalweg) 107.00 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

Gear Type: Minnow Trap (A) Trap Duration(h): 18.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 18.0
Comments: No fish caught
 
Gear Type: Minnow Trap (C) Trap Duration(h): 18.0
Comments: No fish caught
 
Gear Type: Minnow Trap (D) Trap Duration(h): 18.0
 
Gear Type: Minnow Trap (E) Trap Duration(h): 18.0

Fish Observations

Species: juvenile longnose sucker Life History: Resident
Total Fish Observed: 6 Fish Measured: 3 Fork Lengths (mm) Min: 75 Max: 90 Mean: 83
Collected/Observed by Gear Type: Not Recorded Minnow Trap (3)  Not Recorded Minnow Trap (1)  Not Recorded Minnow Trap (2)  

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