Fish Passage Site 60401665

Coordinates (dec. deg.): 69.07047°, -148.82042°
Legal Description: U004S014E30
Region: Arctic
Road Name: Dalton Highway

Datum: NAD83
Quad Name / ITM: Sagavanirktok A-4
AWC Stream #:
Stream Name: Sagavanirktok River, ponds off of

Elevation:

Site Comments: DOT# 2974+10

Survey Date: Aug 08, 2010

Survey EDS10-DAL05

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert sagging in middle

Comments: This culvert connects a pond to another pond. For this reason no stream widths were taken. Small fish that appeared to be nine-spine sticklebacks were seen at the outlet.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 72.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.1 5.1
Height(ft):5.0 5.0
Apron Length(ft):
Water Depth(ft): 2.47
Rustline Height(ft):3.6
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: 0.22%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert sagging in middle

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:High

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) 104.29
D/S Tailcrest or 1st Thalweg (Thalweg) 0.00 97.05
D/S Water Surface Elev (Water Surface) 0.00 97.55
Outlet Pool Water Elev (Pool Surface) 33.00 97.67
Max Pool Depth (Max Pool Depth) 33.00 94.66
Outlet Invert (Bottom of Pipe) 41.00 95.20
Outlet Culvert Top (Top of Pipe) 41.00 100.22
D/S Water Surface Elev (Water Surface) 41.00 97.67
U/S Headwater (Water Surface) 113.70 97.67
Inlet Culvert Top (Top of Pipe) 113.70 100.01
Inlet Culvert Invert (Bottom of Pipe) 113.70 95.36

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): 0.75
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.75
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Visual Observation, Ground (C)
Comments: 9 spine sticklebacks observed near outlet.

Fish Observations

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: Downstream Minnow Trap (0)  Upstream Minnow Trap (0)  
 
Species: ninespine stickleback Life History: Unknown
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Visual Observation, Ground (1)  

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