Fish Passage Site 20100576

Coordinates (dec. deg.): 62.04900°, -146.50538°
Legal Description: C003N007W09
Region: South Central
Road Name: Glenn Highway

Datum: NAD83
Quad Name / ITM: Gulkana A-6
AWC Stream #: 212-20-10080-2431-3122-4010
Stream Name: Woods 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 CRWP17-Glen4

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray
  2. Mechanical damage or joints parting
  3. Structural Problem
  4. Beaver Activity

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Low water at inlet due to culvert placement. Scour evident at inlet. Beaver complex upstream. Numerous juvenile king salmon caught in upstream and downstream traps.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 122.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: Gravel
InletOutlet
Width(ft):6.8 6.4
Height(ft):7.4 7.32
Apron Length(ft):
Water Depth(ft): 0.41
Rustline Height(ft):2.05
Substrate Depth(ft):0.0 0.4
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.89
Culvert Gradient: 1.46%
Max Slope:
Max Slope Length:
 

Comments: Culvert gradient taken from top of culvert elevations.
  Culvert Observations:
  1. Culvert gradient gray
  2. Mechanical damage or joints parting
  3. Structural Problem
  4. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):2
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 6.80
Downstream ordinary high water 6.10
Downstream ordinary high water 5.10
Upstream ordinary high water 6.90
Upstream ordinary high water 10.10
Upstream ordinary high water 5.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 113.17
D/S Water Surface Elev 0.00 90.00
D/S Grade Ctrl (Thalweg) 0.00 89.20
D/S Grade Ctrl (Thalweg) 35.00 89.96
D/S Water Surface Elev 35.00 90.33
D/S Tailcrest or 1st Thalweg 71.00 90.47
D/S Water Surface Elev 71.00 91.09
Outlet Pool Water Elev 87.00 91.15
Max Pool Depth 87.00 88.00
Outlet Culvert Top 112.00 98.13
D/S Water Surface Elev 112.00 91.22
Outlet Invert (On substrate) 112.00 90.81
Inlet Culvert Invert (on pipe) 235.00 92.52
U/S Water Surface Elev 235.00 92.82
Inlet Culvert Top 235.00 99.92
U/S Water Surface Elev 253.00 92.97
U/S Grade Ctrl (Thalweg) 253.00 92.58
U/S Grade Ctrl (Thalweg) 297.00 93.42
U/S Water Surface Elev 297.00 94.11
U/S Water Surface Elev 314.00 94.32
U/S Grade Ctrl (Thalweg) 314.00 93.62

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): 2.0
Comments: Trap placement not recorded.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.0
 
Gear Type: Minnow Trap (C) Trap Duration(h): 2.0

Fish Observations

Species: juvenile Chinook salmon Life History: Anadromous
Total Fish Observed: 11 Fish Measured: 6 Fork Lengths (mm) Min: 60 Max: 83 Mean: 68
Collected/Observed by Gear Type: Not Recorded Minnow Trap (2)  Not Recorded Minnow Trap (9)  
 
Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 4 Fish Measured: 4 Fork Lengths (mm) Min: 95 Max: 120 Mean: 107
Collected/Observed by Gear Type: Not Recorded Minnow Trap (2)  Not Recorded Minnow Trap (2)  

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