Fish Passage Site 60401663

Coordinates (dec. deg.): 70.01842°, -148.65436°
Legal Description: U008N014E28
Region: Arctic
Road Name: Dalton Highway

Datum: NAD83
Quad Name / ITM: Beechey Point A-3
AWC Stream #:
Stream Name: Sagavanirktok River, ponds off of

Elevation:

Site Comments: Sagavanirktok River, ponds off of

Survey Date: Aug 06, 2010

Survey EDS10-DAL03

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Comments: This culvert connects two ponds. For this reason, no stream widths were taken. This culvert has three pipes and C1 appears to be different from C2 and C3.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 75.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 15.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.9 3.0
Height(ft):3.1 2.9
Apron Length(ft):
Water Depth(ft): 0.14
Rustline Height(ft):1.4
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: -0.65%
Max Slope:
Max Slope Length:
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 78.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 15.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.1 3.0
Apron Length(ft):
Water Depth(ft): 0.97
Rustline Height(ft):1.4
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.48%
Max Slope:
Max Slope Length:
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 78.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 15.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.9 3.0
Height(ft):3.1 3.0
Apron Length(ft):
Water Depth(ft): 0.77
Rustline Height(ft):1.6
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: -0.06%
Max Slope:
Max Slope Length:

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Surface) 102.15
D/S Grade Ctrl (Thalweg) (Water Surface) 0.00 97.58
D/S Grade Ctrl (Thalweg) (Thalweg) 0.00 97.45
D/S Water Surface Elev (Water Surface) 51.00 97.57
D/S Tailcrest or 1st Thalweg (Thalweg) 51.00 97.19
Outlet Invert (Bottom of Pipe) 1 79.00 97.43
Outlet Invert (Water Surface) 3 79.00 97.58
D/S Water Surface Elev (Water Surface) 1 79.00 97.57
D/S Water Surface Elev (Water Surface) 2 79.00 97.57
Outlet Invert (Bottom of Pipe) 2 79.00 96.60
Outlet Invert (Bottom of Pipe) 3 79.00 96.81
Inlet Culvert Invert (Bottom of Pipe) 1 154.30 96.94
U/S Headwater (Water Surface) 1 154.30 97.58
U/S Headwater (Water Surface) 2 157.70 97.58
U/S Headwater (Water Surface) 3 157.70 97.58
Inlet Culvert Invert (Bottom of Pipe) 2 157.70 96.98
Inlet Culvert Invert (Bottom of Pipe) 3 157.70 96.76
U/S Grade Ctrl (Thalweg) (Thalweg) 168.70 97.75
U/S Grade Ctrl (Thalweg) (Water Surface) 168.70 97.97

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): 1.0
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Channel Type: Main Channel (>50% of water flow)
Comments: 1 nine-spine stickleback was caught.

Fish Observations

Species: ninespine stickleback Life History: Unknown
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  
 
Species: no fish collected or observed Life History: Not Applicable
Total Fish Observed: 0 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Minnow Trap (0)  

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