Fish Passage Site 20300986

Coordinates (dec. deg.): 59.76638°, -151.62666°
Legal Description: S005S014W02
Region: South Central
Road Name: North Fork Road

Datum: NAD83
Quad Name / ITM: Seldovia D-5
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jul 03, 2001

Survey KPCS1-NK021

Observers: Cecil Rich, Tracy Smith, Michael Lund

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Left pipe (smaller one) perched 150 mm. Right pipe perched 20 mm. Resurvey on 7/24/01.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 48.95
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.5 1.5
Height(ft):1.5 1.77
Apron Length(ft):
Water Depth(ft):0.16 0.1
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.1
Outfall Type:
Constriction Ratio: 0.71
Culvert Gradient: 5.37%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 49.1
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 2.2
Height(ft):2.08 2.12
Apron Length(ft):
Water Depth(ft):0.32 0.2
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.1
Outfall Type:
Constriction Ratio: 0.71
Culvert Gradient: 6.52%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 14.5 8.20
Downstream ordinary high water 29.0 6.40
Downstream ordinary high water 47.0 5.00
Upstream ordinary high water 5.0 5.30
Upstream ordinary high water 13.0 4.20
Upstream ordinary high water 27.0 5.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 85.25
D/S Thalweg 0.00 47.0 83.44
D/S Water Surface Elev 0.00 47.0 83.79
D/S OHW Elev 0.00 47.0 84.44
D/S Thalweg 18.00 29.0 84.52
D/S Water Surface Elev 18.00 29.0 84.90
D/S OHW Elev 18.00 29.0 85.25
D/S Tailcrest or 1st Thalweg 32.00 15.0 86.33
D/S Water Surface Elev 32.00 15.0 86.58
OHW Left Bank 32.00 15.0 90.37
OHW Left Bank 42.00 5.0 86.50
OHW Left Bank 42.00 5.0 87.17
Max Pool Depth 42.00 5.0 85.25
Outlet Invert 2 47.00 0.0 86.40
Outlet Thalweg 2 47.00 0.0 86.40
Outlet Rustline Height 1 47.00 0.0 87.40
Outlet Culvert Top 2 47.00 0.0 88.52
Outlet Culvert Top 1 47.00 0.0 88.79
Outlet Rustline Height 2 47.00 0.0 86.87
Outlet Invert 1 47.00 0.0 87.02
Outlet Thalweg 1 47.00 0.0 87.02
Road Elev 71.50 94.04
Road Elev 71.50 95.31
Inlet Culvert Invert 1 96.00 0.0 89.65
Inlet Thalweg 1 96.00 0.0 89.65
Inlet Culvert Top 1 96.00 0.0 91.23
Inlet Culvert Top 2 96.00 0.0 91.69
Inlet Culvert Invert 2 96.00 0.0 89.60
Inlet Thalweg 2 96.00 0.0 89.60
Inlet Rustline Height 1 96.00 0.0 90.04
Inlet Rustline Height 2 96.00 0.0 90.10
U/S Thalweg 1 97.00 1.0 89.65
U/S Thalweg 2 97.00 1.0 89.46
U/S Thalweg 1 99.00 3.0 89.52
U/S Thalweg 2 100.00 4.0 89.56
U/S Thalweg 1 101.00 5.0 89.46
U/S Water Surface Elev 1 101.00 5.0 89.90
U/S OHW elevation 1 101.00 5.0 90.12
U/S Water Surface Elev 109.00 13.0 89.98
U/S Thalweg 109.00 13.0 89.12
U/S Headwater 109.00 13.0 90.29
U/S Water Surface Elev 123.00 27.0 90.02
U/S Headwater 123.00 27.0 90.27
U/S Thalweg 123.00 27.0 89.65

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): 1.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.55

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 24 Fish Measured: 12 Fork Lengths (mm) Min: 97 Max: 165 Mean: 124
Collected/Observed by Gear Type: Downstream Minnow Trap (16)  Upstream Minnow Trap (8)  

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