Fish Passage Site 10103586

Coordinates (dec. deg.): 55.74946°, -132.97539°
Legal Description: C071S081E03
Region: Southeast
Road Name: North Prince of Wales Road

Datum: NAD83
Quad Name / ITM: Craig C-3
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Near MP23

Survey Date: Jun 28, 2017

Survey SEA17-NPW20

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Beaver Activity
  2. Culvert gradient red
  3. Outfall height gray

Comments: Upstream braided under old logging slash and ferns, hard to fllow channel. Small, a few pools. 0.5ft deep pool at inlet. Upstream has some grade climb with large woody debris steps. Beaver pond downstream. Dam 45ft downstream. Recent beaver sign. Further downstream is grassy meadow, low gradient. No gradient measured due to braids and brush. 3 dollys captured upstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 85.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 35.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.09
Rustline Height(ft):0.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.3
Outfall Type: Hydraulic Jump
Constriction Ratio: 1.04
Culvert Gradient: 2.40%
Max Slope:
Max Slope Length:
 

Comments: Pipe quite rusty. Top of culvert length 81.3'
  Culvert Observations:
  1. Beaver Activity
  2. Culvert gradient red
  3. Outfall height gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:OrganicOrganic
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 20.0 1.80
Upstream ordinary high water 60.0 2.00
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 110.01
D/S Grade Ctrl (Thalweg) 0.00 89.55
D/S Water Surface Elev 0.00 89.75
D/S Grade Ctrl (Thalweg) 12.00 92.05
D/S Water Surface Elev 12.00 92.20
D/S Grade Ctrl (Thalweg) 39.00 92.61
D/S Water Surface Elev 39.00 92.99
D/S Grade Ctrl (Thalweg) 42.00 94.78
D/S Water Surface Elev 42.00 94.91
Max Pool Depth 53.00 95.36
Outlet Pool Water Elev 53.00 95.80
Outlet Invert 55.00 96.01
D/S Water Surface Elev 55.00 96.10
Outlet Culvert Top 57.00 98.05
Inlet Culvert Top 138.30 100.00
U/S Water Surface Elev 140.30 98.10
Inlet Culvert Invert 140.30 98.00
U/S Grade Ctrl (Thalweg) (upstream pool max depth) 147.30 97.29
U/S Water Surface Elev 147.30 97.95
U/S Grade Ctrl (Thalweg) 150.30 98.68
U/S Water Surface Elev 150.30 99.05
U/S Grade Ctrl (Thalweg) 162.30 99.43
U/S Water Surface Elev 162.30 100.08
U/S Grade Ctrl (Thalweg) 175.30 101.70
U/S Water Surface Elev 175.30 101.72

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: 20ft upstream, 3 dollys
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.75
Comments: 20ft downstream, no fish

Fish Observations

Species: juvenile Dolly Varden Life History:
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 50 Max: 80 Mean: 63
Collected/Observed by Gear Type: Upstream Minnow Trap (3)  

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