Fish Passage Site 20501050

Coordinates (dec. deg.): 61.64995°, -149.56772°
Legal Description: S018N002W13
Region: South Central
Road Name: West Sunrise Road

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #:
Stream Name: Coyote Creek

Elevation:

Site Comments: None

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 MSB11-SUN02

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: John Greuey, Abraham Gioffre

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2010


Site Observations:

  1. None of this type

Comments: Resurvey of MSB04ML024. Stream gradient is likely an underestimate of slope.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Structural aluminum plate) Fish Passage Rating: Green
 
Length(ft): 54.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 9.0
Condition Rating(1-5): 5
Approach Angle: 2.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):17.5 17.6
Height(ft):4.6 3.9
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.49
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.55
Culvert Gradient: 4.38%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):2.2
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 109.0 12.40
Downstream ordinary high water 179.0 10.40
Downstream ordinary high water 212.0 11.10

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev (water surface used for stream grad) 0.00 91.08
D/S Water Surface Elev (water surface used for stream grad) 104.00 93.31
D/S Thalweg (profile pt in riffle) 122.00 93.61
D/S Water Surface Elev 122.00 94.24
Outlet Invert (invert on substrate) 203.00 95.99
D/S Water Surface Elev (outlet water surface) 203.00 96.48
D/S Water Surface Elev (water surface of eddy near outlet) 203.00 96.54
Outlet Culvert Top 203.00 99.90
Road Elev 230.00 103.52
Inlet Culvert Top 257.80 102.03
Inlet Culvert Invert (invert on substrate) 257.80 97.40
U/S Water Surface Elev (inlet water surface) 257.80 98.15
U/S Water Surface Elev (water surface in eddy near inlet) 257.80 98.28
U/S Thalweg (profile pt in riffle) 301.80 98.61
U/S Water Surface Elev 301.80 99.41

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.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov