Fish Passage Site 10103573

Coordinates (dec. deg.): 55.82101°, -133.03964°
Legal Description: C070S081E08
Region: Southeast
Road Name: North Prince of Wales Road

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

Elevation:

Site Comments: None

Survey Date: Jun 13, 2017

Survey SEA17-NPW07

Observers: 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 ponds upstream and downstream. 4 coho captured upstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 96.7
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 5.2
Condition Rating(1-5): 4
Approach Angle: 4.0
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):7.4 9.2
Height(ft):5.6 5.3
Apron Length(ft):
Water Depth(ft): 2.71
Rustline Height(ft):3.0
Substrate Depth(ft):1.8 2.9
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.27%
Max Slope:
Max Slope Length:
 

Comments: Downstream beaver dam currently backwatering culvert.
  Culvert Observations:
  1. Beaver Activity

Stream Measurements

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

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 110.32
D/S Grade Ctrl (Thalweg) (below beaver dam) 0.00 95.22
D/S Water Surface Elev 0.00 96.47
D/S Tailcrest or 1st Thalweg (top of beaver dam) 2.00 97.31
D/S Water Surface Elev 2.00 98.12
D/S Water Surface Elev 107.00 98.11
Outlet Invert (on substrate, estimated end of mitre) 107.00 95.40
Outlet Culvert Top 113.00 100.26
Inlet Culvert Top 209.70 100.00
U/S Water Surface Elev 215.70 98.22
Inlet Culvert Invert (on substrate, end of mitre) 215.70 95.13
U/S Water Surface Elev 233.70 98.07
U/S Grade Ctrl (Thalweg) (base of beaver dam) 233.70 96.91
U/S Grade Ctrl (Thalweg) (top of beaver dam) 247.70 102.42
U/S Water Surface Elev 247.70 103.16

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
Comments: 4 coho, 1 rainbow 10ft upstream
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.75
Comments: Stickleback not measured

Fish Observations

Species: juvenile coho salmon Life History:
Total Fish Observed: 4 Fish Measured: 4 Fork Lengths (mm) Min: 69 Max: 81 Mean: 75
Collected/Observed by Gear Type: Upstream Minnow Trap (4)  
 
Species: juvenile rainbow trout Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 100 Max: 100 Mean: 100
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  
 
Species: threespine stickleback Life History: Unknown
Total Fish Observed: 2 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  

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