Fish Passage Site 40501775

Coordinates (dec. deg.): 65.36052°, -146.08925°
Legal Description: F006N008E10
Region: Interior
Road Name: Steese Highway

Datum: WGS84
Quad Name / ITM: Circle B-5
AWC Stream #:
Stream Name: Montana Creek

Elevation:

Site Comments: MP 80 - Site is near the Montana Creek DOT station.

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-STS26

Observers: Ben Histand, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Road bank erosion
  2. Compound gradient in pipe
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Comments: The pipe here is showing signs of getting old and starting to rust through. There were fish seen upstream. Arctic grayling or arctic char.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 95.8
Inlet Type: Mitered
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: None
InletOutlet
Width(ft):10.0 10.0
Height(ft):8.7 9.8
Apron Length(ft):
Water Depth(ft): 0.27
Rustline Height(ft):1.5
Substrate Depth(ft):1.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.67
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.44
Culvert Gradient: 4.51%
Max Slope: 7.47
Max Slope Length: 34.0
  Culvert Observations:
  1. Road bank erosion
  2. Compound gradient in pipe
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 169.0 22.30
Upstream ordinary high water 230.0 22.60
Upstream ordinary high water 271.0 22.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev (Water Surface) 0.00 93.50
D/S Grade Ctrl (Thalweg) (Tailcrest of Small Pool Downstream) 0.00 93.12
D/S Tailcrest or 1st Thalweg (Thalweg) 6.00 93.29
D/S Water Surface Elev (Water Surface) 6.00 93.58
D/S Thalweg (Bottom of Outlet Pool) 10.00 91.78
D/S Water Surface Elev (Tailwater Surface) 13.00 93.59
Outlet Invert (Bottom of Pipe) 15.00 93.99
D/S Water Surface Elev (Water Surface) 15.00 94.26
D/S Thalweg (Stream Bed at the End of Pipe) 15.00 92.60
Misc. (Inside Pipe - Max Gradient - End of Inlet Substrate) 77.00 95.77
Misc. (Water Surface) 77.00 96.36
Inlet Culvert Invert (Bottom of Pipe) 111.00 98.31
U/S Water Surface Elev (Water Surface = Headwater Surface) 111.00 98.52

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): 1.17
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.17
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Visual Observation, Ground (C)
Comments: Fish observed U/S.

Fish Observations

Species: general fish observation, no species information Life History: Not Recorded
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Visual Observation, Ground (1)  
 
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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