Fish Passage Site 10302216

Coordinates (dec. deg.): 58.39219°, -134.74974°
Legal Description: C040S065E19
Region: Southeast
Road Name: Lena Point Road

Datum: NAD83
Quad Name / ITM: Juneau B-3
AWC Stream #: 111-50-10310
Stream Name: Picnic Creek

Elevation:

Site Comments: Aprox. 200 feet upstream of 10302217

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 SEA11-LPR01

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Jason Olds, Charmagne Gutierrez

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Constriction ratio gray

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Gray
 
Length(ft): 46.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.33
Corrugation Width(in.): 2.0
Condition Rating(1-5): 3
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.9 3.9
Height(ft):4.1 4.1
Apron Length(ft):
Water Depth(ft): 0.28
Rustline Height(ft):0.6
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.16
Outfall Type: Hydraulic Jump
Constriction Ratio: 0.61
Culvert Gradient: 0.26%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:SandGravel
Stream Slope(deg.):1.18
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Upstream ordinary high water 35.0 8.60
Upstream ordinary high water 69.0 4.50
Upstream ordinary high water 95.0 6.10

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Road Elev 100.38
D/S Grade Ctrl (Thalweg) 0.00 92.55
D/S Water Surface Elev 0.00 92.97
D/S Tailcrest or 1st Thalweg 21.00 93.00
D/S Water Surface Elev 21.00 93.20
Max Pool Depth 23.00 92.31
Outlet Pool Water Elev 23.00 93.14
Outlet Culvert Top 25.00 97.09
D/S Water Surface Elev 25.00 93.30
Outlet Invert 25.00 93.02
U/S Headwater 71.80 93.68
Inlet Culvert Top 71.80 97.36
Inlet Culvert Invert 71.80 93.14
U/S Water Surface Elev 102.00 93.76
U/S Water Surface Elev 230.00 95.27

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: None (A)
Comments: No traps set no fish observed.

Fish Observations

No fish observations occurred during this survey.

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