Fish Passage Site 50101636

Coordinates (dec. deg.): 65.05607°, -164.83845°
Legal Description: K005S030W18
Region: Arctic
Road Name: Pilgrim Hot Springs Road

Datum: NAD83
Quad Name / ITM: Bendeleben A-6
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Mile 3.7

Survey Date: Sep 18, 2005

Survey SEW05-PHS01

Project Supervisor: Dave Ryland,
Observers: Dave Ryland, Jason Cheney, Paul Thompson

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is poorly aligned
  2. Hydraulic flows exceeded capacity
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 40.5
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.75
Corrugation Width(in.): 2.75
Condition Rating(1-5): 4
Approach Angle: 28.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.9
Height(ft):5.9
Apron Length(ft):
Water Depth(ft): 1.1
Rustline Height(ft):2.0
Substrate Depth(ft):0.0 0.0
Backwatered?: Unknown
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 1.37
Outfall Type:
Constriction Ratio: 0.17
Culvert Gradient: 4.42%
Max Slope:
Max Slope Length:
 

Comments: Rust line height estimated due to velocity
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Hydraulic flows exceeded capacity
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 75.0 13.20
Upstream bank full 100.0 34.60
Upstream bank full 125.0 38.30
Upstream bank full 150.0 72.10
Upstream bank full 175.0 47.80
Upstream bed width 100.0 24.10
Upstream bed width 125.0 23.70
Upstream bed width 150.0 22.30
Upstream bed width 175.0 40.60
Upstream ordinary high water 100.0 33.40
Upstream ordinary high water 125.0 29.60
Upstream ordinary high water 150.0 35.90
Upstream ordinary high water 175.0 41.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 2.60
Outlet Pool Water Elev 92.73
U/S Thalweg 97.05
D/S Grade Ctrl (Thalweg) 0.00 75.0 87.87
D/S Tailcrest or 1st Thalweg 53.00 22.0 91.96
OHW (Outlet Tailcrest) 53.00 22.0 92.54
D/S Thalweg 70.00 5.0 2.60
Outlet Invert 1 75.00 0.0 93.00
Road Elev 95.00 103.41
Inlet Culvert Invert 1 115.00 0.0 94.79
U/S Thalweg 127.00 12.0 96.56
U/S Grade Ctrl (Thalweg) 190.00 75.0 99.14

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

Photos

No photos available.

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