Fish Passage Site 20501143

Coordinates (dec. deg.): 61.50107°, -149.62038°
Legal Description: S016N002W03
Region: South Central
Road Name: Settler Bay Drive

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10305
Stream Name: Crocker Creek

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-SBD01

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2012


Site Observations:

  1. Woody Debris

Comments: Trench willows in great condition.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Green
 
Length(ft): 78.47
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.5
Corrugation Width(in.): 6.0
Condition Rating(1-5): 5
Approach Angle: 10.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):11.2 11.0
Height(ft):5.9 5.8
Apron Length(ft):
Water Depth(ft):0.0 0.54
Rustline Height(ft):0.2
Substrate Depth(ft):1.35 1.45
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 1.35
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.96
Culvert Gradient: 0.50%
Max Slope:
Max Slope Length:
 

Comments: Replaced in 2012.
  Culvert Observations:
  1. Woody Debris

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:SandSand
Stream Slope(deg.):0.95
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 35.0 9.10
Upstream ordinary high water 53.0 11.20
Upstream ordinary high water 95.0 14.80
Upstream ordinary high water 120.0 11.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 102.38
D/S Thalweg 0.00 92.60
D/S Water Surface Elev 0.00 93.36
D/S Thalweg 37.00 93.63
D/S Water Surface Elev 37.00 94.03
D/S Water Surface Elev 63.00 94.21
D/S Thalweg 63.00 93.31
Outlet Culvert Top 100.30 99.28
Outlet Invert 100.30 94.22
D/S Water Surface Elev 100.30 94.76
Inlet Culvert Invert 178.77 94.84
Inlet Culvert Top 178.77 98.87
U/S Water Surface Elev 178.77 95.78
U/S Water Surface Elev 222.77 95.88
U/S Thalweg 222.77 95.31
U/S Water Surface Elev 273.77 95.97
U/S Thalweg 273.77 95.20

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