Fish Passage Site 10302155

Coordinates (dec. deg.): 58.31249°, -134.46019°
Legal Description: C041S067E16
Region: Southeast
Road Name: North Douglas Highway

Datum: NAD83
Quad Name / ITM: Juneau B-2
AWC Stream #:
Stream Name: Eagle Creek

Elevation:

Site Comments: None

Survey Date: Jun 18, 2011

Survey SEA11-NDH08

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

Overall Fish Passage Rating: Gray

Tidal: Yes
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height gray
  3. Constriction ratio red

Comments: No traps set as creek is already in AWC. Culvert is in tidal influence, possible whole pipe is filled with water in very high tides. Outlet is rusted through in places along the lower periphery, potentially as a result of exposure to marine water accelerating oxydization. Nice pool/ riffle complexes upstream. Approximately 50 feet from outlet to ocean at time of observation(tidal). No downstream grade points measured beyond tailwater control point with tidal consideration potentially backwatering the pipe.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 105.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 2
Approach Angle: 7.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):12.6 12.6
Height(ft):8.3 8.2
Apron Length(ft):
Water Depth(ft): 0.42
Rustline Height(ft):1.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.34
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.48
Culvert Gradient: 3.82%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height gray
  3. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderGravel
Subdominant:CobbleBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 59.0 21.00
Upstream ordinary high water 101.0 27.20
Upstream ordinary high water 183.0 31.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev (Tailwater control water surface. Tidal influence possible) 0.00 99.29
D/S Tailcrest or 1st Thalweg (Tidal influence possible) 0.00 98.22
Max Pool Depth (Tidal influence possible) 14.00 95.34
Outlet Pool Water Elev (Tidal influence possible) 14.00 99.35
D/S Water Surface Elev (Invert out. Tidal influence possible) 31.00 99.69
Outlet Invert (On metal, invert out. Tidal influence possible) 31.00 99.27
U/S Water Surface Elev (Invert in. Tidal influence possible) 146.00 104.00
Inlet Culvert Invert (On metal. Tidal influence possible) 146.00 103.28
U/S Thalweg (Tailcrest) (1st resting, on substrate) 147.00 103.42
U/S Headwater (1st resting) 147.00 103.94

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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