Fish Passage Site 20300941

Coordinates (dec. deg.): 60.61012°, -149.53528°
Legal Description: S006N002W13
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward C-7
AWC Stream #:
Stream Name: Summit Creek

Elevation:

Site Comments: None

Survey Date: Aug 30, 2001

Survey KPCS1-EK057

Observers: Cecil Rich, William Glick, Mike Thompson

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: No outlet pool - only riffle at outlet

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 70.0
Inlet Type: Mitered
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):5.9 6.0
Height(ft):4.48 3.79
Apron Length(ft):
Water Depth(ft):0.63 0.79
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.86
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Open-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 70.0
Inlet Type: Mitered
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):5.4 5.6
Height(ft):4.48 4.19
Apron Length(ft):
Water Depth(ft):1.04 0.83
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.86
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 50.0 23.90
Downstream ordinary high water 100.0 11.00
Upstream ordinary high water 5.0 16.30
Upstream ordinary high water 50.0 16.50
Upstream ordinary high water 100.0 9.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 85.58
D/S OHW Elev 0.00 100.0 86.21
D/S Water Surface Elev 0.00 100.0 86.44
D/S Thalweg 50.00 50.0 86.77
D/S OHW Elev 50.00 50.0 87.52
D/S Water Surface Elev 50.00 50.0 87.71
Outlet Thalweg 2 100.00 0.0 87.87
Outlet Thalweg 1 100.00 0.0 88.21
Outlet Rustline Height 2 100.00 0.0 88.73
Outlet Rustline Height 1 100.00 0.0 88.96
Outlet Culvert Top 2 100.00 0.0 92.06
Outlet Culvert Top 1 100.00 0.0 92.00
Road Elev 135.00 94.52
Road Elev 135.00 0.0 95.81
Inlet Culvert Top 1 170.00 0.0 97.96
Inlet Culvert Top 2 170.00 0.0 93.04
Inlet Rustline Height 1 170.00 0.0 90.23
Inlet Rustline Height 2 170.00 0.0 89.40
Inlet Thalweg 1 170.00 0.0 89.69
Inlet Thalweg 2 170.00 0.0 88.56
U/S Thalweg 1 171.00 1.0 89.85
U/S Thalweg 2 171.00 1.0 89.02
U/S Thalweg 2 175.00 5.0 89.21
U/S Thalweg 1 175.00 5.0 89.90
U/S Water Surface Elev 1 175.00 5.0 90.48
U/S OHW elevation 1 175.00 5.0 90.06
U/S Thalweg 2 181.00 11.0 89.69
U/S Thalweg 1 181.90 11.9 89.98
U/S Thalweg 220.00 50.0 91.00
U/S Headwater 220.00 50.0 91.44
U/S Water Surface Elev 220.00 50.0 91.67
U/S Water Surface Elev 264.00 94.0 93.08
U/S Headwater 264.00 94.0 93.35
U/S Thalweg 264.00 94.0 92.04

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): 1.3

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 14 Fish Measured: 7 Fork Lengths (mm) Min: 70 Max: 110 Mean: 90
Collected/Observed by Gear Type: Downstream Minnow Trap (10)  Upstream Minnow Trap (4)  

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov