Fish Passage Site 20502061

Coordinates (dec. deg.): 63.11378°, -147.37698°
Legal Description: F021S002E09
Region: South Central
Road Name: Wedding Pass Mine Road

Datum: NAD83
Quad Name / ITM: Healy A-1
AWC Stream #:
Stream Name: Windy Creek tributary

Elevation:

Site Comments: None

Survey Date: Jul 05, 2011

Survey MSB11-WDP01

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Constriction ratio red
  3. Structural Problem
  4. Shallow fill; inadequate roadfill volume above culvert
  5. Mechanical damage or joints parting

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 20.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 10.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.55 1.55
Height(ft):1.3 1.4
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.3
Rustline Height(ft):1.75
Substrate Depth(ft):0.2 0.2
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.42
Culvert Gradient: 2.07%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Constriction ratio red
  3. Structural Problem
  4. Shallow fill; inadequate roadfill volume above culvert
  5. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:GravelSand
Stream Slope(deg.):5.32
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 30.0 4.30
Downstream ordinary high water 100.0 2.30
Downstream ordinary high water 135.0 4.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Grade Ctrl (Thalweg) (Bottome of riffle) 0.00 94.34
D/S Water Surface Elev 0.00 94.51
D/S Grade Ctrl (Thalweg) (Middle of riffle) 33.00 95.70
D/S Water Surface Elev 33.00 95.91
D/S Grade Ctrl (Thalweg) (Top of riffle) 65.00 97.81
D/S Water Surface Elev 65.00 97.97
D/S Water Surface Elev (Water surface at outlet invert) 68.00 98.17
Outlet Invert (On substrate) 68.00 97.87
Outlet Culvert Top 68.00 99.40
Road Elev 78.00 100.06
Inlet Culvert Top 88.30 99.82
Inlet Culvert Invert (On substrate) 88.30 98.52
U/S Water Surface Elev (Water surface at inlet invert) 88.30 98.73
U/S Water Surface Elev (Water surface at inlet pool) 90.30 98.81
Max Pool Depth (Inlet pool) 90.30 98.25
U/S Grade Ctrl (Thalweg) (Mid point of riffle) 120.30 100.34
U/S Water Surface Elev 120.30 100.53

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