Fish Passage Site 40501718

Coordinates (dec. deg.): 65.16669°, -150.21828°
Legal Description: F004N013W16
Region: Interior
Road Name: Eureka Road

Datum: WGS84
Quad Name / ITM: Tanana A-1
AWC Stream #:
Stream Name: Pioneer Creek

Elevation:

Site Comments: None

Survey Date: Jul 10, 2010

Survey EDS10-EUK01

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Structural Problem
  2. Mechanical damage or joints parting
  3. Damage associated with ice problems
  4. Culvert sagging in middle
  5. Constriction ratio red
  6. Culvert gradient red

Comments: Both sides of the pipe are mitered. The inlet has been pushed severely in and is badly damaged. Channel appears to be a ditch both upstream and downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 53.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 1
Approach Angle: 10.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):6.8 8.5
Height(ft):5.5 6.5
Apron Length(ft):
Water Depth(ft): 1.54
Rustline Height(ft):2.6
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.36
Culvert Gradient: 3.52%
Max Slope:
Max Slope Length:
 

Comments: The gradient was calculated using the water surfaces. The rust line height was taken from the substrate to the rust line.
  Culvert Observations:
  1. Structural Problem
  2. Mechanical damage or joints parting
  3. Damage associated with ice problems
  4. Culvert sagging in middle
  5. Constriction ratio red
  6. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 98.0 20.80
Upstream ordinary high water 180.0 17.70
Upstream ordinary high water 298.0 19.10

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Surface) 102.92
D/S Grade Ctrl (Thalweg) (Thalweg) 0.00 93.42
D/S Water Surface Elev (Water Surface) 0.00 94.04
D/S Tailcrest or 1st Thalweg (Thalweg) 73.00 94.11
D/S Water Surface Elev (Water Surface) 73.00 94.86
D/S Water Surface Elev (Water Surface) 92.00 93.97
Outlet Invert (Bottom of Pipe) 92.00 92.43
Outlet Culvert Top (Top of Pipe) 102.00 100.85
Inlet Culvert Top (Top of Pipe) 155.00 100.39
Inlet Culvert Invert (Substrate/Thalweg) 155.00 94.94
U/S Water Surface Elev (Water Surface) 155.00 96.19
U/S Headwater (Water Surface) 156.00 96.24
U/S Thalweg (Substrate) 156.00 94.67

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: Nothing was caught.

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)  

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