Fish Passage Site 40401728

Coordinates (dec. deg.): 65.33818°, -146.81886°
Legal Description: F006N004E24
Region: Interior
Road Name: Nome Creek Road

Datum: WGS84
Quad Name / ITM: Circle B-6
AWC Stream #:
Stream Name: Moose Creek

Elevation:

Site Comments: Road prism has a large flood plain u/s with 5, 6' overflow culverts thoughout berm

Survey Date: Jun 18, 2010

Survey EDS10-NCR03

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Road bank erosion
  2. Structural Problem

Comments: Fish Passage culvert. Appears to be a 15 foot embedded culvert mitered at a weird angle with cement armor along road slope. Road prism has a large flood plain u/s with 5, 6' overflow culverts thoughout berm. 2 grayling observed feeding in D/S pool and a round whitefish was found dead just inside outlet.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Green
 
Length(ft): 117.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle: 8.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: Boulder
InletOutlet
Width(ft):15.0 15.0
Height(ft):9.7 10.0
Apron Length(ft):
Water Depth(ft): 1.75
Rustline Height(ft):
Substrate Depth(ft):5.3 5.0
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 5.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.83
Culvert Gradient: 0.40%
Max Slope:
Max Slope Length:
 

Comments: Embedded depth is estimated as substrate is large boulder and cobbles and est to be 5 feet down. No rustline was seen pipe might be too new for one to have formed or it's buried under substrate.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):1.16
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 402.0 19.60
Upstream ordinary high water 518.0 17.80
Upstream ordinary high water 572.0 16.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 113.96
D/S Grade Ctrl (Thalweg) (Thalweg) 0.00 96.28
D/S Water Surface Elev (w/s) 0.00 96.89
D/S Water Surface Elev (W/S) 85.00 97.26
D/S Grade Ctrl (Thalweg) (Thalweg) 85.00 96.24
D/S Tailcrest or 1st Thalweg (thalweg) 142.00 95.54
D/S Water Surface Elev (Tailwater water surface) 142.00 97.35
Outlet Pool Water Elev 188.00 97.36
Max Pool Depth (Max Pool Depth) 188.00 94.98
Outlet Invert (Substrate) 196.00 95.62
D/S Water Surface Elev (Water Surface) 196.00 97.37
Inlet Culvert Top (Top of Pipe is Mitered) 221.00 106.62
Inlet Culvert Top (Top of Pipe Mitered) 293.00 106.32
U/S Water Surface Elev (Water surface) 314.00 97.43
Inlet Culvert Invert (Substrate) 314.00 96.76
U/S Headwater (Water surface) 321.00 97.35
U/S Thalweg (Substrate) 321.00 98.86
U/S Water Surface Elev 420.00 99.13
U/S Grade Ctrl (Thalweg) 420.00 98.30
U/S Water Surface Elev 498.00 99.40
U/S Grade Ctrl (Thalweg) 498.00 99.59

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, 1/4 in. Mesh (A) Trap Duration(h): 2.0
Comments: No fish caught
 
Gear Type: Minnow Trap, 1/4 in. Mesh (B) Trap Duration(h): 2.0
Comments: No fish caught in trap.
 
Gear Type: Visual Observation, Ground (C)
Comments: 295 mm round whitefish found dead just inside culvert near outlet. 2 Grayling observed feeding in outlet pool.

Fish Observations

Species: adult round whitefish Life History: Resident
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 295 Max: 295 Mean: 295
Collected/Observed by Gear Type: At Site Visual Observation, Ground (1)  
 
Species: Arctic grayling Life History: Resident
Total Fish Observed: 2 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: At Site Visual Observation, Ground (2)  
 
Species: no fish collected or observed Life History: Not Applicable
Total Fish Observed: 0 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap, 1/4 in. Mesh (0)  Upstream Minnow Trap, 1/4 in. Mesh (0)  

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