Fish Passage Site 20502076

Coordinates (dec. deg.): 61.69907°, -149.30347°
Legal Description: S019N001E32
Region: South Central
Road Name: North Waldo Reed Road

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

Elevation:

Site Comments: North Waldo Reed Road with an upst area very brushy and a short dwst channel that drains into a pond 15' dwst.

Survey Date: Sep 15, 2011

Survey MSB11-NWR03

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red

Comments: **Updated site photos added from 8/26/16, fish information in AFFI, site visit from Sampling Unmapped Streams in the MSB project.** North Waldo Reed Road with an upst area very brushy and a short dwst channel that drains into a pond 15' dwst.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 41.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 10.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.5 2.25
Height(ft):2.45 2.35
Apron Length(ft):
Water Depth(ft): 0.12
Rustline Height(ft):0.2
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.25
Culvert Gradient: 3.70%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Culvert is too short

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:SandSand
Stream Slope(deg.):8.25
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 12.0 1.70
Upstream ordinary high water 38.0 2.20
Upstream ordinary high water 70.0 2.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg (profile pt at end of channel before pond) 0.00 94.88
D/S Water Surface Elev 0.00 95.23
Outlet Invert (on pipe) 15.00 95.65
D/S Water Surface Elev (outlet water surface) 15.00 95.77
Outlet Culvert Top 15.00 98.22
Road Elev 35.00 100.72
Inlet Culvert Top 55.40 99.71
Inlet Culvert Invert (on pipe) 55.40 97.18
U/S Water Surface Elev (inlet water surface) 55.40 97.29
U/S Thalweg (GP) 58.40 97.70
U/S Water Surface Elev 58.40 97.88
U/S Water Surface Elev (water surface for gradient) 61.40 97.92
U/S Water Surface Elev (water surface for gradient) 93.40 100.56

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