Fish Passage Site 20501109

Coordinates (dec. deg.): 61.56648°, -149.91562°
Legal Description: S017N004W13
Region: South Central
Road Name: Horseshoe Lake Road

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

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-MS099

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. None of this type

Comments: Connecting two wetland areas.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 48.0
Inlet Type: Flared Inlet
Outlet Type: Flared Inlet
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Organic
Outlet Substrate: Organic
InletOutlet
Width(ft):1.9 1.82
Height(ft):1.88 1.6
Apron Length(ft):2.0 2.2
Water Depth(ft):0.0 0.97
Rustline Height(ft):0.95
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.52%
Max Slope:
Max Slope Length:
 

Comments: Culvert sagging in middle. Could not measure length through pipe, took rough measurement across road.
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 101.52
D/S Water Surface Elev 0.00 97.01
D/S Water Surface Elev 30.00 97.04
Outlet Invert 30.00 96.07
Outlet Culvert Top 30.00 97.85
Inlet Culvert Top 78.00 98.07
Inlet Culvert Invert 78.00 96.20
U/S Water Surface Elev 78.00 97.07
U/S Water Surface Elev 118.00 97.38

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