Fish Passage Site 40501752

Coordinates (dec. deg.): 65.09271°, -147.42316°
Legal Description: F003N002E18
Region: Interior
Road Name: Steese Highway

Datum: WGS84
Quad Name / ITM: Livengood A-1
AWC Stream #:
Stream Name: Davidson Ditch

Elevation:

Site Comments: None

Survey Date: Jun 11, 2010

Survey EDS10-STS03

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height gray
  3. Compound gradient in pipe

Comments: The creek upstream and downstream of this culvert appears to be channelized. There are nice pools and riffles throughout. There is a compound gradient in this pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 82.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: Sand
Outlet Substrate: None
InletOutlet
Width(ft):10.2 10.3
Height(ft):9.5 10.1
Apron Length(ft):
Water Depth(ft): 0.21
Rustline Height(ft):2.75
Substrate Depth(ft):0.5 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.21
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.83
Culvert Gradient: 1.56%
Max Slope: 3.38
Max Slope Length: 60.0
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height gray
  3. Compound gradient in pipe

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 112.0 10.30
Upstream ordinary high water 156.0 6.95
Upstream ordinary high water 196.0 7.55

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Top of Pipe) 114.24
D/S Water Surface Elev (Water Surface) 0.00 99.74
D/S Tailcrest or 1st Thalweg (Substrate) 0.00 99.28
Max Pool Depth (Outlet Pool Max Depth) 21.00 97.05
D/S Grade Ctrl (Thalweg) (Tailwater Water Surface) 42.00 99.75
D/S Water Surface Elev (Water Surface) 43.00 99.91
Outlet Invert (Bottom of Pipe) 43.00 99.70
Outlet Culvert Top (Top of Pipe) 43.00 109.87
Misc. (Water Surface in Pipe) 103.00 101.94
Misc. (Substrate in Pipe) 103.00 101.55
Inlet Culvert Invert (Substrate) 125.00 101.61
U/S Water Surface Elev (Water Surface) 125.00 101.96
U/S Headwater (Water Surface) 134.00 102.40
U/S Grade Ctrl (Thalweg) (Substrate) 134.00 101.68
U/S Grade Ctrl (Thalweg) (Substrate) 142.00 100.95
U/S Water Surface Elev (Water Surface) 142.00 102.64

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): 1.75
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.75
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were 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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