Fish Passage Site 10302201

Coordinates (dec. deg.): 58.37402°, -134.62155°
Legal Description: C040S065E26
Region: Southeast
Road Name: Engineers Cutoff Road

Datum: NAD83
Quad Name / ITM: Juneau B-2
AWC Stream #:
Stream Name: Casa Del Sol tributary

Elevation:

Site Comments: None

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-ECR01

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
  2. Culvert gradient gray

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 46.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.33
Corrugation Width(in.): 2.0
Condition Rating(1-5): 2
Approach Angle: 59.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.7
Rustline Height(ft):0.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.54
Culvert Gradient: 0.87%
Max Slope:
Max Slope Length:
 

Comments: Rusted out BOP at Inlet. US is a ditch drain. Visual Observation of Salmonids US/DS
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelSilt/Clay
Subdominant:Silt/ClayClay (legacy)
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 22.0 4.30
Downstream ordinary high water 45.0 3.90
Downstream ordinary high water 68.0 2.90

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 98.07
D/S Tailcrest or 1st Thalweg 0.00 93.45
D/S Water Surface Elev 0.00 93.60
Outlet Pool Water Elev 6.00 93.62
Max Pool Depth 6.00 92.93
Outlet Thalweg 10.00 92.89
D/S Water Surface Elev 10.00 93.59
Outlet Culvert Top 10.00 94.80
Inlet Culvert Top 56.20 95.20
U/S Headwater (Invert in, BOP rusted through) 56.20 93.73

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: Visual Observation, Ground (A) Trap Duration(h): 30.0
Channel Type: Main Channel (>50% of water flow)
Comments: Visual observations of juvenile salmonids upstream and downstream from culvert.
 
Gear Type: Visual Observation, Ground (B) Trap Duration(h): 30.0
Channel Type: Main Channel (>50% of water flow)

Fish Observations

No fish observations occurred during this survey.

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