Fish Passage Site 20103758

Coordinates (dec. deg.): 63.07459°, -145.71022°
Legal Description: F021S011E19
Region: South Central
Road Name: Denali Highway

Datum: NAD83
Quad Name / ITM: Mt Hayes A-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Tributary to Hundary Hollow

Survey Date: Sep 13, 2016

Survey CRWP17-Den2

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio gray

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Small incised muskeg channel upstream. No fish caught.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 106.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 2.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.0 3.1
Height(ft):2.99 3.0
Apron Length(ft):
Water Depth(ft): 0.31
Rustline Height(ft):0.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.08
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.61
Culvert Gradient: 8.40%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):5
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 9.00
Downstream ordinary high water 9.80
Downstream ordinary high water 7.60
Upstream ordinary high water 6.90
Upstream ordinary high water 7.10
Upstream ordinary high water 3.20
Upstream ordinary high water 2.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.00
D/S Grade Ctrl (Thalweg) 0.00 75.56
D/S Water Surface Elev 0.00 75.90
D/S Tailcrest or 1st Thalweg 23.00 82.56
D/S Water Surface Elev 23.00 83.05
Outlet Pool Water Elev 28.00 83.05
Max Pool Depth 28.00 80.77
Outlet Invert (on pipe) 35.00 83.82
D/S Water Surface Elev 35.00 84.13
Outlet Culvert Top 35.00 86.82
Inlet Culvert Invert (on pipe) 142.00 92.79
U/S Water Surface Elev 142.00 93.30
Inlet Culvert Top 142.00 95.78
U/S Grade Ctrl (Thalweg) 152.00 93.97
U/S Water Surface Elev 152.00 94.38
U/S Grade Ctrl (Thalweg) 264.00 97.56
U/S Water Surface Elev 264.00 99.06
U/S Water Surface Elev 273.00 99.31
U/S Grade Ctrl (Thalweg) 273.00 97.86
U/S Grade Ctrl (Thalweg) 278.00 100.47
U/S Water Surface Elev 278.00 101.47

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): 18.0
Comments: 3 traps set, no fish caught

Fish Observations

No fish observations occurred during this survey.

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