Fish Passage Site 40401729

Coordinates (dec. deg.): 65.31335°, -146.91272°
Legal Description: F006N004E27
Region: Interior
Road Name: Nome Creek Road

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

Elevation:

Site Comments: Culvert and road prism replaced in 2011. Multiple overflow pipe and a fish passage culvert were added. Culvert was also surveyed in 2010 before replacement: EDS10NCR04

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey EDS10-NCR04

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: Yes
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Material inadequate for designed use
  3. Other, including vibrations, cavitation, etc.
  4. Road bank erosion
  5. Road Fill (pushed off road by grader)
  6. Sediment accumulation

Comments: This site appears to have been washed out a number of times and culverts and crossing are in pretty bad shape. This site has been replace and a new survey has been taken. This survey should be used for historic purposes only.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 53.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.25
Condition Rating(1-5): 1
Approach Angle: 15.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: None
InletOutlet
Width(ft):4.0 4.0
Height(ft):4.0 4.0
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.25
Rustline Height(ft):0.7
Substrate Depth(ft):2.4 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.92
Culvert Gradient: 7.70%
Max Slope:
Max Slope Length:
 

Comments: Rust line height taken at outlet due to substrate plugging inlet. Most substrate downstream for quite a ways is road fill washed from the prism.
  Culvert Observations:
  1. Culvert gradient red
  2. Material inadequate for designed use
  3. Other, including vibrations, cavitation, etc.
  4. Road bank erosion
  5. Road Fill (pushed off road by grader)
  6. Sediment accumulation

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderCobble
Subdominant:CobbleGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 73.0 3.60
Upstream ordinary high water 108.0 4.10
Upstream ordinary high water 123.0 3.30

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 92.02
D/S Tailcrest or 1st Thalweg (Thalweg) 0.00 83.98
D/S Water Surface Elev 0.00 84.34
Outlet Pool Water Elev (W/S) 12.00 84.39
Max Pool Depth (Max pool depth) 12.00 83.06
Outlet Invert (Bottom of Pipe) 15.00 84.16
D/S Water Surface Elev (Water Surface at outlet) 15.00 84.41
Top of Pipe Outlet (Outlet Top of Pipe) 15.00 88.13
Inlet Culvert Invert (Invert Inlet Substrate) 68.00 85.92
U/S Water Surface Elev (Invert In Water Surface) 68.00 86.53
Top of Pipe Inlet (Inlet Top of Pipe) 68.00 12.33
U/S Thalweg (Thalweg) 81.00 86.90
U/S Headwater (W/S) 81.00 87.71

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): 1.2
Comments: Set in pool above culverts. No fish caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.2
Channel Type: Main Channel (>50% of water flow)
Comments: Placed in outlet pool.

Fish Observations

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 (0)  Upstream Minnow Trap (0)  

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