Fish Passage Site 20300951

Coordinates (dec. deg.): 60.91873°, -149.62168°
Legal Description: S010N002W34
Region: South Central
Road Name: Hope Highway FH 14

Datum: NAD83
Quad Name / ITM: Seward D-7
AWC Stream #: 247-60-10160
Stream Name: Bear Creek

Elevation:

Site Comments: Goes subsurface in winter. Landowner has right to divert water - diverting 1/2 channel (10%).

Survey Date: Sep 12, 2001

Survey KPCS1-EK075

Observers: Cecil Rich, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Goes subsurface in winter. Landowner has right to divert water - diverting 1/2 channel (10%). DOT put in rip-rap below to prevent outlet pool scouring and out channel degradation. Need to depress pipe to promote aggradation in culvert.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 74.5
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):14.0 15.1
Height(ft):8.17 9.04
Apron Length(ft):
Water Depth(ft):0.7 0.85
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.51
Outfall Type:
Constriction Ratio: 0.82
Culvert Gradient: 3.28%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 14.0 22.30
Downstream ordinary high water 50.0 12.10
Downstream ordinary high water 100.0 18.00
Upstream ordinary high water 5.0 19.20
Upstream ordinary high water 50.0 14.60
Upstream ordinary high water 100.0 19.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 89.98
D/S OHW Elev 0.00 100.0 90.83
D/S Water Surface Elev 0.00 100.0 90.83
D/S Thalweg 50.00 50.0 91.44
D/S Water Surface Elev 50.00 50.0 92.48
D/S OHW Elev 50.00 50.0 93.08
D/S Tailcrest or 1st Thalweg 86.00 14.0 93.75
D/S Water Surface Elev 86.00 14.0 94.31
OHW Left Bank 86.00 14.0 95.75
OHW Left Bank 95.00 5.0 95.79
OHW Left Bank 95.00 5.0 94.67
Max Pool Depth 95.00 5.0 93.42
D/S Thalweg 95.00 5.0 93.42
Outlet Rustline Height 1 100.00 0.0 95.44
Outlet Invert 1 100.00 0.0 94.33
Outlet Thalweg 1 100.00 0.0 94.33
Outlet Culvert Top 1 100.00 0.0 103.37
Road Elev 137.00 108.50
Road Elev 137.00 108.62
Inlet Culvert Top 1 174.00 0.0 104.94
Inlet Culvert Invert 1 174.00 0.0 96.77
Inlet Thalweg 1 174.00 0.0 96.77
Inlet Rustline Height 1 174.00 0.0 97.71
U/S Thalweg 1 175.00 1.0 96.57
U/S Water Surface Elev 1 179.00 5.0 97.77
U/S OHW elevation 1 179.00 5.0 98.59
U/S Thalweg 1 179.00 5.0 97.04
U/S Thalweg 1 203.00 29.0 97.63
U/S Thalweg 224.00 50.0 97.71
U/S Water Surface Elev 224.00 50.0 98.94
U/S Headwater 224.00 50.0 99.50
U/S Thalweg 274.00 100.0 100.07
U/S Water Surface Elev 274.00 100.0 101.27
U/S Headwater 274.00 100.0 101.82

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): 1.3
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.25

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 131 Max: 133 Mean: 132
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (2)  

Photos

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