Fish Passage Site 60401666

Coordinates (dec. deg.): 68.95595°, -148.86771°
Legal Description: U006S014E05
Region: Arctic
Road Name: Dalton Highway

Datum: WGS84
Quad Name / ITM: Philip Smith Mts D-4
AWC Stream #:
Stream Name: Gustafson Gulch

Elevation:

Site Comments: DOT#2517+85

Survey Date: Aug 09, 2010

Survey EDS10-DAL06

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
  2. Mechanical damage or joints parting
  3. Structural Problem

Comments: This pipe appears to have collapsed near the outlet. A medium-sized dark fish was seen near the inlet. No stream widths were taken because this culvert connects two ponds. The DOT placard was used for the length of this culvert.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 90.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 2
Approach Angle: 8.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.0 5.1
Height(ft):5.0 4.9
Apron Length(ft):
Water Depth(ft): 3.15
Rustline Height(ft):
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: -0.70%
Max Slope:
Max Slope Length:
 

Comments: No rust line height pipe rusted throughout. The DOT placard was used for the length of this culvert.
  Culvert Observations:
  1. Culvert sagging in middle
  2. Mechanical damage or joints parting
  3. Structural Problem

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:GravelGravel
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) 103.04
D/S Thalweg (Substrate) 0.00 87.33
D/S Water Surface Elev (Water Surface) 0.00 89.99
D/S Tailcrest or 1st Thalweg (Thalweg) 21.00 88.11
D/S Water Surface Elev (Water Surface) 21.00 89.98
Outlet Culvert Top (Top of Pipe) 26.00 91.61
Outlet Invert (Bottom of Pipe) 26.00 86.82
D/S Water Surface Elev (Water Surface) 26.00 89.97
Inlet Culvert Invert (Water Surface) 116.00 89.94
Inlet Culvert Invert (Bottom of Pipe) 116.00 86.19
Inlet Culvert Top (Top of Pipe) 116.00 91.04
U/S Grade Ctrl (Thalweg) (Thalweg) 141.00 89.04
U/S Water Surface Elev (Water Surface) 141.00 90.35

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: Medium sized dark fish seen near outlet, most likely Grayling.

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: general fish observation, no species information Life History: Not Recorded
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Visual Observation, Ground (1)  

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