Fish Passage Site 10103553

Coordinates (dec. deg.): 55.87405°, -133.05241°
Legal Description: C069S081E19
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 03, 2017

Survey SEA17-CVR04

Observers: Mark Eisenman, Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Beaver Activity
  2. Improper bedding

Comments: Creek flows subsurface inside pipe, likely due to improper bedding. Beavers ponds upstream and downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 87.6
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.5
Corrugation Width(in.): 6.5
Condition Rating(1-5): 4
Approach Angle: 2.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):12.2 12.4
Height(ft):6.2 7.1
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):
Substrate Depth(ft):6.0 5.3
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 5.3
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.19%
Max Slope:
Max Slope Length:
 

Comments: No widths measured, all large beaver ponds. Culvert too large, constriction not an issue.
  Culvert Observations:
  1. Beaver Activity
  2. Improper bedding

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):
Stream Flow Stage:Low

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 104.89
D/S Grade Ctrl (Thalweg) (edge of beaver pond) 0.00 92.18
D/S Water Surface Elev 0.00 91.44
D/S Water Surface Elev 31.00 91.51
D/S Grade Ctrl (Thalweg) (log) 31.00 91.24
Outlet Invert (no water, on substrate) 68.00 92.22
Outlet Culvert Top 78.00 99.83
Inlet Culvert Top 165.60 100.00
Inlet Culvert Invert (dry, estimated end of mitre) 175.60 93.79
U/S Grade Ctrl (Thalweg) (top of log) 224.60 96.41
U/S Water Surface Elev 224.60 96.85

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)
Comments: Time out not recorded, no fish
 
Gear Type: Minnow Trap (B)
Comments: time out not recorded, no fish

Fish Observations

No fish observations occurred during this survey.

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