Fish Passage Site 20300948

Coordinates (dec. deg.): 60.55805°, -149.58375°
Legal Description: S005N002W02
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward C-7
AWC Stream #:
Stream Name: John's Creek

Elevation:

Site Comments: Very steep channel, perch at outlet. Bedrock falls above cascading boulder caused pools below.

Survey Date: Sep 11, 2001

Survey KPCS1-EK072

Observers: Cecil Rich, William Glick, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Very steep channel, perch at outlet. Bedrock falls above cascading boulder caused pools below.

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 96.0
Inlet Type: Mitered
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):7.2 7.1
Height(ft):6.9 8.29
Apron Length(ft):
Water Depth(ft):0.75 0.71
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.79
Outfall Type:
Constriction Ratio: 0.52
Culvert Gradient: 6.47%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BedrockBoulder
Subdominant:BoulderCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 22.0 12.90
Downstream ordinary high water 50.0 15.20
Downstream ordinary high water 100.0 15.00
Upstream ordinary high water 5.0 22.40
Upstream ordinary high water 46.0 14.00
Upstream ordinary high water 78.0 13.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 78.29
D/S Water Surface Elev 0.00 100.0 79.27
D/S OHW Elev 0.00 100.0 80.04
D/S OHW Elev 50.00 50.0 83.54
D/S Thalweg 50.00 50.0 82.29
D/S Water Surface Elev 50.00 50.0 82.92
D/S Tailcrest or 1st Thalweg 78.00 22.0 83.00
D/S Water Surface Elev 78.00 22.0 84.10
OHW Left Bank 78.00 22.0 84.71
OHW Left Bank 95.00 5.0 84.44
OHW Left Bank 95.00 5.0 83.96
Max Pool Depth 95.00 5.0 81.85
D/S Thalweg 95.00 5.0 81.85
Outlet Invert 1 100.00 0.0 84.04
Outlet Thalweg 1 100.00 0.0 84.04
Outlet Rustline Height 1 100.00 0.0 85.08
Outlet Culvert Top 1 100.00 0.0 92.33
Road Elev 148.00 102.06
Road Elev 148.00 102.08
Inlet Rustline Height 1 196.00 0.0 91.69
Inlet Culvert Top 1 196.00 0.0 97.15
Inlet Culvert Invert 1 196.00 0.0 90.25
Inlet Thalweg 1 196.00 0.0 90.25
U/S Thalweg 1 197.00 1.0 90.40
U/S OHW elevation 1 201.00 5.0 93.00
U/S Water Surface Elev 1 201.00 5.0 91.81
U/S Thalweg 1 201.00 5.0 90.31
U/S Thalweg 1 210.30 14.3 92.94
U/S Thalweg 242.00 46.0 98.19
U/S Water Surface Elev 242.00 46.0 99.33
U/S Headwater 242.00 46.0 100.83
U/S Water Surface Elev 274.00 78.0 101.29
U/S Headwater 274.00 78.0 101.77
U/S Thalweg 274.00 78.0 99.83

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): 1.15
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.15

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)  

Photos

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