Fish Passage Site 20501053

Coordinates (dec. deg.): 61.61118°, -149.64053°
Legal Description: S018N002W33
Region: South Central
Road Name: North Meadow Lakes Road

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

Elevation:

Site Comments: Little Meadow Creek. Upstream is a marsh.

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 MSB11-MED01

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: John Greuey, Abraham Gioffre

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2011


Site Observations:

  1. None of this type

Comments: Survey was done on a replacement culvert. Upstream is a marsh with glide flow.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Green
 
Length(ft): 55.5
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.8 4.85
Height(ft):3.05 3.2
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.69
Rustline Height(ft):
Substrate Depth(ft):2.0 1.85
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 1.85
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.1
Culvert Gradient: 2.04%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:Silt/ClayOrganic
Stream Slope(deg.):2.4
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 84.0 4.20
Downstream ordinary high water 115.0 4.60
Downstream ordinary high water 150.0 4.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev (water surface used for gradient) 0.00 94.83
D/S Grade Ctrl (Thalweg) (grade pt at edge of pool) 60.00 96.03
D/S Water Surface Elev 60.00 96.30
D/S Thalweg (profile pt) 84.00 96.28
D/S Water Surface Elev (water surface used for gradient) 84.00 96.81
D/S Water Surface Elev (outlet water surface) 111.00 97.37
Outlet Invert (on substrate) 111.00 96.68
Outlet Culvert Top 111.00 100.00
Road Elev 138.00 102.48
Inlet Culvert Top 166.50 101.13
U/S Water Surface Elev (inlet water surface) 166.50 98.46
Inlet Culvert Invert (on substrate) 166.50 98.03
U/S Grade Ctrl (Thalweg) (grade pt at top of riffle) 176.50 98.29
U/S Water Surface Elev 176.50 98.82
U/S Water Surface Elev 184.50 98.83
U/S Thalweg (profile pt in flat slough) 184.50 97.46

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