Fish Passage Site 20103760

Coordinates (dec. deg.): 62.10186°, -145.53893°
Legal Description: C004N002W26
Region: South Central
Road Name: Moose Creek Road

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

Elevation:

Site Comments: Tributary to Moose Creek

Survey Date: Sep 11, 2016

Survey CRWP17-GISp2

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height gray
  2. Constriction ratio red
  3. Culvert gradient red
  4. Mechanical damage or joints parting
  5. Improper bedding
  6. Cut-slope slumping or sliding into culvert (single event)

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Rainbow trout caught downstream. C1 is taking all flow, C2 set as overflow pipe. Wood crib for road bed is rotting and slumping. Crushed outlet of C1 is making it a barrier to fish passage.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 50.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 1
Approach Angle: 20.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: None
InletOutlet
Width(ft):3.0 3.6
Height(ft):2.96 0.24
Apron Length(ft):
Water Depth(ft): 0.21
Rustline Height(ft):3.0
Substrate Depth(ft):0.4 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.19
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.33
Culvert Gradient: 2.20%
Max Slope:
Max Slope Length:
 

Comments: Culvert outlet crushed creating a fish passage barrier. Culvert length estimated.
  Culvert Observations:
  1. Culvert gradient red
  2. Constriction ratio red
  3. Outfall height gray
  4. Improper bedding
  5. Mechanical damage or joints parting
  6. Culvert is too short
ID: 2 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 45.5
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 2
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):6.3 6.1
Height(ft):6.23
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):2.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio:
Culvert Gradient: 4.88%
Max Slope:
Max Slope Length:
 

Comments: Culvert dry at time of survey, set higher than C1 as an overflow pipe. Outlet bent and damaged.
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelSilt/Clay
Stream Slope(deg.):3
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 10.2
Downstream ordinary high water 11.6
Downstream ordinary high water 12.1
Upstream ordinary high water 6.9
Upstream ordinary high water 9.1
Upstream ordinary high water 10.9

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 107.04
D/S Grade Ctrl (Thalweg) 0.00 87.07
D/S Water Surface Elev 0.00 87.89
D/S Tailcrest or 1st Thalweg 85.00 90.42
D/S Water Surface Elev 85.00 90.99
D/S Thalweg (culvert directly below top of mitre, distance estimated) 2 90.00 93.02
Max Pool Depth 94.00 90.29
Outlet Pool Water Elev 94.00 91.22
D/S Water Surface Elev 1 95.00 91.41
Outlet Culvert Top 1 95.00 91.44
Outlet Invert (End of pipe at end of mitre, dry) 2 95.00 91.55
Outlet Invert 1 95.00 91.20
Inlet Culvert Invert (on substrate) 1 145.00 92.31
U/S Water Surface Elev 1 145.00 92.85
Inlet Culvert Invert (Dry) 2 145.00 93.77
Inlet Culvert Top 1 145.00 95.27
Inlet Culvert Top 1 145.00 100.00
U/S Water Surface Elev 155.00 93.97
U/S Grade Ctrl (Thalweg) 155.00 93.53
U/S Grade Ctrl (Thalweg) 191.00 95.10
U/S Water Surface Elev 191.00 95.63
U/S Grade Ctrl (Thalweg) 258.00 97.17
U/S Water Surface Elev 258.00 97.75

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): 15.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 15.0
 
Gear Type: Minnow Trap (C) Trap Duration(h): 15.0
Comments: No fish caught
 
Gear Type: Minnow Trap (D) Trap Duration(h): 15.0
Comments: No fish caught

Fish Observations

Species: juvenile longnose sucker Life History: Resident
Total Fish Observed: 2 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Not Recorded Minnow Trap (2)  
 
Species: juvenile rainbow trout Life History: Unknown
Total Fish Observed: 2 Fish Measured: 2 Fork Lengths (mm) Min: 65 Max: 75 Mean: 70
Collected/Observed by Gear Type: Not Recorded Minnow Trap (1)  Not Recorded Minnow Trap (1)  

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