Fish Passage Site 20401295

Coordinates (dec. deg.): 61.52490°, -149.57124°
Legal Description: S017N002W35
Region: South Central
Road Name: Cardiff Road

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #:
Stream Name: Lucy Creek 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 MSB23-MS021

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2004


Site Observations:

  1. Culvert gradient red

Comments: Noticable differences in stream gradient upstream compared to downstream thus stream gradient calculated seperately. Upstream gradient = 1.4% and downstream gradient = 6.1%. Looks like culvert was not able to hold onto substrate inside pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 52.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 4
Approach Angle: 30.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Cobble
InletOutlet
Width(ft):4.55 4.7
Height(ft):3.24 3.72
Apron Length(ft):
Water Depth(ft): 0.25
Rustline Height(ft):0.7
Substrate Depth(ft):0.45 0.62
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 0.62
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio: 0.91
Culvert Gradient: 3.92%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:SandGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 50.0 5.00
Upstream ordinary high water 78.0 4.90
Upstream ordinary high water 94.0 5.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.97
U/S Water Surface Elev 0.00 97.58
U/S Thalweg 0.00 96.81
U/S Thalweg 35.00 96.50
U/S Water Surface Elev 35.00 97.40
Outlet Culvert Top 52.30 97.71
Outlet Invert 52.30 93.84
D/S Water Surface Elev 52.30 94.09
D/S Thalweg 57.30 93.02
D/S Water Surface Elev 57.30 93.41
U/S Thalweg 67.00 96.73
U/S Water Surface Elev 67.00 97.37
D/S Thalweg 72.30 92.25
D/S Water Surface Elev 72.30 92.71
Inlet Culvert Invert 100.00 95.80
U/S Water Surface Elev 100.00 96.14
Inlet Culvert Top 100.00 98.99
D/S Water Surface Elev 122.30 88.36
D/S Thalweg 122.30 88.71
D/S Water Surface Elev 151.30 88.01
D/S Thalweg 151.30 88.59

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