Fish Passage Site 20401234

Coordinates (dec. deg.): 61.45512°, -148.83777°
Legal Description: S016N003E25
Region: South Central
Road Name: Farmettes Circle

Datum: WGS84
Quad Name / ITM: Anchorage B-5
AWC Stream #:
Stream Name: Knik River 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 MSB09-USR01

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Shallow fill; inadequate roadfill volume above culvert
  3. Mechanical damage or joints parting
  4. Sediment accumulation
  5. Beaver Activity

Comments: Pipe different at each end: inlet corrugated, outlet NCP (w/brackets inside). Outlet rusted through. Photos and additional fish data added from 9.15.16 Fish survey. Fish survey data in AFFI database.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 32.6
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 44.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft): 0.89
Rustline Height(ft):1.6
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:
Culvert Gradient: 2.64%
Max Slope:
Max Slope Length:
 

Comments: Pipe is made up of different material at each end. Inlet is a corregated steel pipe, outlet is a non-corregated metal, possibly an old tank or tank car. Outlet is rusted through.
  Culvert Observations:
  1. Culvert gradient red
  2. Shallow fill; inadequate roadfill volume above culvert
  3. Mechanical damage or joints parting
  4. Sediment accumulation
  5. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 96.97
U/S Headwater 1 98.16
D/S Tailcrest or 1st Thalweg (1st GP d/s - flat, slow wetland channel) 1 0.00 60.0 96.31
D/S Water Surface Elev (@GP) 1 0.00 60.0 96.90
Outlet Invert 1 60.00 0.0 96.08
Road Elev 1 76.00 101.04
Inlet Culvert Invert 1 92.60 0.0 96.94

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: Minnow Trap (A) Trap Duration(h): 0.75
Comments: no fish caught; 50ft d/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.75
Comments: 50 ft u/s

Fish Observations

No fish observations occurred during this survey.

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