Fish Passage Site 20501089

Coordinates (dec. deg.): 61.58353°, -149.74303°
Legal Description: S017N003W12
Region: South Central
Road Name: Bike Path

Datum: NAD83
Quad Name / ITM: Anchorage C-8
AWC Stream #:
Stream Name:

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-MS062

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. None of this type

Comments: None

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 40.13
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Cobble
InletOutlet
Width(ft):5.21 5.13
Height(ft):3.38 2.9
Apron Length(ft):
Water Depth(ft):0.0 0.84
Rustline Height(ft):1.55
Substrate Depth(ft):0.16 0.8
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.55
Culvert Gradient: 0.05%
Max Slope:
Max Slope Length:
 

Comments: Baffles in culvert
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:Silt/ClaySand
Stream Slope(deg.):1.39
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 39.0 3.60
Downstream ordinary high water 75.0 3.70
Downstream ordinary high water 100.0 2.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.49
U/S Water Surface Elev 0.00 96.83
U/S Water Surface Elev 35.00 96.83
Inlet Culvert Top 35.00 98.96
Inlet Culvert Invert 35.00 95.47
Outlet Invert 75.13 95.96
D/S Water Surface Elev 75.13 96.80
Outlet Culvert Top 75.13 98.94
D/S Thalweg 81.13 96.13
D/S Water Surface Elev 81.13 96.71
D/S Water Surface Elev 96.13 96.09
D/S Thalweg 96.13 95.47
D/S Thalweg 175.13 92.87
D/S Water Surface Elev 175.13 94.40

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