Fish Passage Site 20300931

Coordinates (dec. deg.): 60.49313°, -149.84450°
Legal Description: S005N003W29
Region: South Central
Road Name: Bean Creek

Datum: NAD83
Quad Name / ITM: Seward B-8
AWC Stream #: 244-30-10010-2169
Stream Name: Bean Creek

Elevation:

Site Comments: 148 feet US of site 20300930.

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 KEN18-BCBC1

Observers: Maggie Harings, Tyler Barber, John Lowin, Chelsea Pardo

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. None of this type

Comments: Culvert assessment and photos submitted by Kenai Watershed Forum. Culvert is embedded, but upstream or downstream long profile distances not long enough for an accurate stream slope. Culvert is not constricted and has a fairly flat water surface gradient though culvert. Site rated Green. Water surface gradient through culvert 0.27%.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 33.67
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 5.0
Sedimentation At Inlet: No
Inlet Substrate: Boulder
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.67 5.13
Height(ft):3.36 2.81
Apron Length(ft):
Water Depth(ft): 0.43
Rustline Height(ft):0.9
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.825
Culvert Gradient: 0.77%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:BoulderBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 15.0 7.25
Downstream ordinary high water 45.0 7.50
Downstream ordinary high water 72.0 6.50
Upstream ordinary high water 5.6 5.60
Upstream ordinary high water 44.0 12.00
Upstream ordinary high water 50.0 4.30
Upstream ordinary high water 57.0 5.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 102.94
D/S Water Surface Elev 0.00 95.13
D/S Thalweg 0.00 95.45
D/S Thalweg (max pool depth) 13.00 95.13
D/S Water Surface Elev 13.00 96.14
D/S Water Surface Elev 18.80 96.74
D/S Thalweg (max pool depth) 18.80 95.80
D/S Grade Ctrl (Thalweg) 20.30 95.95
D/S Water Surface Elev 20.30 96.62
D/S Water Surface Elev 23.00 97.10
D/S Grade Ctrl (Thalweg) 23.00 96.36
D/S Thalweg (max pool depth) 25.20 96.61
D/S Water Surface Elev 25.20 97.19
Outlet Invert (on substrate) 45.00 97.08
Outlet Culvert Top 45.00 100.00
Inlet Culvert Top 78.70 100.26
U/S Water Surface Elev 78.70 97.60
Inlet Culvert Invert (on substrate) 78.70 96.81
U/S Water Surface Elev 83.70 97.86
U/S Thalweg 83.70 97.36
U/S Grade Ctrl (Thalweg) 89.70 97.96
U/S Water Surface Elev 89.70 98.36
U/S Water Surface Elev 114.00 99.22
U/S Thalweg 114.00 98.18
U/S Thalweg (max pool depth) 122.20 97.76
U/S Water Surface Elev 122.20 99.28
U/S Water Surface Elev 127.20 99.27
U/S Thalweg 127.20 98.67

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): 2.25
Comments: Trap set about 30 feet upstream.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.5
Comments: Trap set about 20 feet downstream.

Fish Observations

Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 14 Fish Measured: 14 Fork Lengths (mm) Min: 70 Max: 138 Mean: 104
Collected/Observed by Gear Type: Downstream Minnow Trap (6)  Upstream Minnow Trap (8)  

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