Fish Passage Site 10103552

Coordinates (dec. deg.): 55.87035°, -133.06657°
Legal Description: C069S080E24
Region: Southeast
Road Name: Coffman Cove Road

Datum: NAD83
Quad Name / ITM: Craig D-4
AWC Stream #: 106-30-10670-2004-3030-4060
Stream Name: Unnamed

Elevation:

Site Comments: Near Milepost 19

Survey Date: Jun 03, 2017

Survey SEA17-CVR03

Observers: Mark Eisenman, Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Beaver Activity

Comments: Beaver dams downstream, stream splits 50ft upstream. Backwatered by beaver dams.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 75.4
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 3.3
Condition Rating(1-5): 4
Approach Angle: 11.0
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):8.0 8.0
Height(ft):5.5 5.25
Apron Length(ft):
Water Depth(ft): 2.65
Rustline Height(ft):
Substrate Depth(ft):2.5 2.75
Backwatered?: Yes
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 2.5
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 3.2
Culvert Gradient: 0.41%
Max Slope:
Max Slope Length:
 

Comments: Length is total culvert including mitres. Rust line underwater, not measured. Top of culvert length is 63.4'.
  Culvert Observations:
  1. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 50.0 3.00
Upstream ordinary high water 100.0 2.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.67
D/S Grade Ctrl (Thalweg) (below beaver dam) 0.00 93.37
D/S Water Surface Elev 0.00 94.48
D/S Grade Ctrl (Thalweg) (beaver dam) 14.00 95.58
D/S Water Surface Elev 14.00 95.71
Max Pool Depth 26.00 92.00
D/S Water Surface Elev 26.00 95.70
D/S Water Surface Elev 49.00 95.73
Outlet Invert (estimated end of mitre on substrate) 49.00 93.08
Outlet Culvert Top 55.00 98.24
Inlet Culvert Top 118.40 97.98
U/S Water Surface Elev 124.40 95.73
Inlet Culvert Invert (estimated end of mitre on substrate) 124.40 92.71

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): 3.0
Comments: no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 3.0
Comments: no fish

Fish Observations

No fish observations occurred during this survey.

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