Fish Passage Site 20300989

Coordinates (dec. deg.): 59.75664°, -151.78271°
Legal Description: S005S015W11
Region: South Central
Road Name: Serling Highway

Datum: NAD83
Quad Name / ITM: Seldovia D-5
AWC Stream #: 244-10-10010-2021
Stream Name: Two Moose Creek

Elevation:

Site Comments: None

Survey Date: Jul 05, 2001

Survey KPCS1-NK024

Observers: Cecil Rich, Michael Lund

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Very steep embankments gullying undermining road gfc above inlet.

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 116.0
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):9.5 7.2
Height(ft):7.71 8.86
Apron Length(ft):
Water Depth(ft):0.61 0.84
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.67
Outfall Type:
Constriction Ratio: 0.6
Culvert Gradient: 3.80%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Cut-slope slumping or sliding into culvert (single event)

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:CobbleGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 36.0 29.30
Downstream ordinary high water 78.0 14.50
Downstream ordinary high water 136.0 32.00
Upstream ordinary high water 5.0 13.20
Upstream ordinary high water 39.0 14.30
Upstream ordinary high water 87.0 17.30

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 74.31
D/S Thalweg 0.00 136.0 78.00
D/S Water Surface Elev 0.00 136.0 78.33
D/S OHW Elev 0.00 136.0 78.48
D/S Water Surface Elev 58.00 78.0 78.81
D/S Thalweg 58.00 78.0 78.00
D/S OHW Elev 58.00 78.0 79.35
OHW Left Bank 100.00 36.0 77.11
D/S Tailcrest or 1st Thalweg 100.00 36.0 78.90
D/S Water Surface Elev 100.00 36.0 79.33
Max Pool Depth 131.00 5.0 74.31
OHW Left Bank 131.00 5.0 79.48
OHW Left Bank 131.00 5.0 80.06
Outlet Rustline Height 1 136.00 0.0 81.12
Outlet Invert 1 136.00 0.0 79.31
Outlet Thalweg 1 136.00 0.0 79.31
Outlet Culvert Top 1 136.00 0.0 88.17
Road Elev 194.00 111.27
Road Elev 194.00 112.25
Inlet Culvert Top 1 252.00 0.0 91.43
Inlet Rustline Height 1 252.00 0.0 84.70
Inlet Culvert Invert 1 252.00 0.0 83.72
Inlet Thalweg 1 252.00 0.0 83.72
U/S Thalweg 1 253.00 1.0 84.16
U/S Thalweg 1 257.00 5.0 84.22
U/S Water Surface Elev 1 257.00 5.0 85.37
U/S OHW elevation 1 257.00 5.0 85.83
U/S Thalweg 1 271.00 19.0 84.70
U/S Thalweg 291.00 39.0 85.08
U/S Headwater 291.00 39.0 86.64
U/S Water Surface Elev 291.00 39.0 85.95
U/S Thalweg 339.00 87.0 86.22
U/S Water Surface Elev 339.00 87.0 86.25
U/S Headwater 339.00 87.0 87.41

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): 2.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.1

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 6 Fish Measured: 3 Fork Lengths (mm) Min: 111 Max: 125 Mean: 119
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (4)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 52 Max: 55 Mean: 53
Collected/Observed by Gear Type: Upstream Minnow Trap (4)  

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