Fish Passage Site 20203740

Coordinates (dec. deg.): 60.15521°, -149.43199°
Legal Description: S001N001W27
Region: South Central
Road Name: Clear Creek Road

Datum: NAD83
Quad Name / ITM: Seward A-7
AWC Stream #: 231-30-10080-2010-3029-4019
Stream Name: Unnamed

Elevation:

Site Comments: Unnamed Tributary to Clear Creek. Site is downstream from 85_2007.

Survey Date: Aug 09, 2017

Survey KEN17-86_2007

Observers: Louis Mitchell, Luke Violette, Mary Richardson

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height gray
  2. Culvert is poorly aligned
  3. Mechanical damage or joints parting
  4. Structural Problem
  5. Constriction ratio red

Comments: KWFRES_17_21. Culvert Assessment performed and submitted by Kenai Watershed Forum.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Gray
 
Length(ft): 20.66
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle: 70.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.125 1.125
Height(ft):1.0 1.0
Apron Length(ft):
Water Depth(ft): 0.22
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.14
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.3
Culvert Gradient: 0.19%
Max Slope:
Max Slope Length:
 

Comments: Outlet of culvert has considerable damage with a large side puncture leaking water. Puncture diameter 0.5'.
  Culvert Observations:
  1. Constriction ratio red
  2. Outfall height gray
  3. Culvert is poorly aligned
  4. Mechanical damage or joints parting
  5. Structural Problem

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicSand
Subdominant:SandGravel
Stream Slope(deg.):1.02
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 20.0 5.33
Downstream ordinary high water 40.0 10.50
Downstream ordinary high water 80.0 12.00
Upstream ordinary high water 20.0 4.25
Upstream ordinary high water 40.0 4.25
Upstream ordinary high water 60.0 3.00
Upstream ordinary high water 80.0 3.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth (Distance not recorded) 96.19
D/S Water Surface Elev (Distance not recorded) 96.84
Road Elev 99.25
D/S Water Surface Elev 0.00 96.63
D/S Thalweg 0.00 95.77
D/S Thalweg 20.00 95.71
D/S Water Surface Elev 20.00 96.60
D/S Thalweg 40.00 96.07
D/S Water Surface Elev 40.00 96.63
D/S Water Surface Elev 60.00 96.63
D/S Thalweg 60.00 96.35
D/S Grade Ctrl (Thalweg) 70.00 96.43
D/S Water Surface Elev 70.00 96.76
Outlet Invert 100.00 96.76
D/S Water Surface Elev 100.00 96.98
Outlet Culvert Top 100.00 97.83
Inlet Culvert Top 120.66 97.85
U/S Water Surface Elev 120.66 97.22
Inlet Culvert Invert 120.66 96.80
U/S Thalweg (Inlet pool max depth) 122.66 96.19
U/S Water Surface Elev 122.66 97.24
U/S Water Surface Elev (Stream gradient) 130.66 97.20
U/S Thalweg 130.66 96.69
U/S Grade Ctrl (Thalweg) 155.66 97.17
U/S Water Surface Elev 155.66 97.27
U/S Water Surface Elev 170.66 97.41
U/S Thalweg 170.66 97.15
U/S Grade Ctrl (Thalweg) 200.66 97.65
U/S Water Surface Elev 200.66 97.99
U/S Thalweg 220.66 98.16
U/S Water Surface Elev (Stream gradient) 220.66 98.16

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): 1.25
Comments: Trap set about 60 feet downstream
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: Trap set about 10 feet upstream.

Fish Observations

No fish observations occurred during this survey.

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