Fish Passage Site 20501073

Coordinates (dec. deg.): 61.62543°, -149.58675°
Legal Description: S018N002W26
Region: South Central
Road Name: Wyoming Drive

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #:
Stream Name: Unnamed

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 MSB23-MS110

Project Supervisor: Michael Mazzacavallo, Alaska Department of Fish and Game — Anchorage, AK
Observers: Michael Mazzacavallo, Kat Leavitt, Beth Evers

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Woody Debris
  2. Other, including vibrations, cavitation, etc.
  3. Road Fill (pushed off road by grader)

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 33.42
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: Organic
InletOutlet
Width(ft):1.9 1.9
Height(ft):1.35 1.8
Apron Length(ft):
Water Depth(ft):0.0 0.0
Rustline Height(ft):7.0
Substrate Depth(ft):0.8 0.8
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: Overflow Pipe
Constriction Ratio:
Culvert Gradient: 2.40%
Max Slope:
Max Slope Length:
 

Comments: Culvert#1 outlet is damaged to top/ in pieces. Water depth for #1 is not applicable due to lack of water. Vegetation overgrown at inlet.
  Culvert Observations:
  1. Other, including vibrations, cavitation, etc.
  2. Road Fill (pushed off road by grader)
  3. Woody Debris
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 39.82
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: Organic
InletOutlet
Width(ft):1.3 1.8
Height(ft):1.4 1.5
Apron Length(ft):
Water Depth(ft):0.0 0.48
Rustline Height(ft):1.4
Substrate Depth(ft):1.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 3.36%
Max Slope:
Max Slope Length:
 

Comments: Vegetation is overgrown at inlet side. Inlet hieght, was able to take measurements of full height despite substrate presence. Road fill pushed on top of inlet pipes, almost covering inlet.
  Culvert Observations:
  1. Road Fill (pushed off road by grader)
  2. Other, including vibrations, cavitation, etc.
  3. Woody Debris

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):1.97
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)
U/S Water Surface Elev 0.00 98.06
U/S Water Surface Elev 19.00 98.06
U/S Thalweg 19.00 97.39
U/S Water Surface Elev 2 20.00 97.80
Inlet Culvert Invert 2 20.00 97.92
Inlet Culvert Invert 1 20.00 98.02
Top of Pipe Inlet 2 20.00 98.84
Inlet Culvert Top 1 20.00 99.40
Outlet Culvert Top 1 52.02 98.63
Outlet Invert 1 53.42 96.93
D/S Water Surface Elev (Culvert water surface) 2 59.82 96.40
Outlet Invert 2 59.82 95.92
Outlet Culvert Top 2 59.82 97.50
D/S Water Surface Elev 99.82 96.09

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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