Fish Passage Site 10103558

Coordinates (dec. deg.): 55.87562°, -133.03793°
Legal Description: C069S081E20
Region: Southeast
Road Name: Coffman Cove Road

Datum: NAD83
Quad Name / ITM: Craig D-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 07, 2017

Survey SEA17-CVR09

Observers: Mark Eisenman, Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red

Comments: Marginal habitat upstream, nice stream structure downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 146.4
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 6.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.6 5.6
Height(ft):5.1 5.1
Apron Length(ft):
Water Depth(ft): 0.1
Rustline Height(ft):1.3
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: 2.3
Culvert Gradient: 3.70%
Max Slope:
Max Slope Length:
 

Comments: Pipe gradient close to stream gradient, but over 3%. Top of culvert length 134.4'.
  Culvert Observations:
  1. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayOrganic
Subdominant:OrganicGravel
Stream Slope(deg.):2.97
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 100.0 2.50
Downstream ordinary high water 125.0 1.60
Downstream ordinary high water 150.0 3.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 113.59
D/S Grade Ctrl (Thalweg) 0.00 86.76
D/S Water Surface Elev 0.00 86.99
D/S Tailcrest or 1st Thalweg 27.00 87.36
D/S Water Surface Elev 27.00 87.72
D/S Water Surface Elev 37.00 88.09
Max Pool Depth 37.00 87.38
Outlet Invert (on pipe) 38.00 87.98
D/S Water Surface Elev 38.00 88.08
Outlet Culvert Top 44.00 93.55
Inlet Culvert Top 178.00 98.49
U/S Water Surface Elev 184.00 93.63
Inlet Culvert Invert (on pipe, 1st resting) 184.00 93.40
U/S Grade Ctrl (Thalweg) (small debris grade point) 204.00 94.20
U/S Water Surface Elev 204.00 94.51
U/S Grade Ctrl (Thalweg) (on top of log) 221.00 96.51
U/S Water Surface Elev 221.00 96.73

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): 2.5
Comments: no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.5
Comments: no fish

Fish Observations

No fish observations occurred during this survey.

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