Fish Passage Site 20401318

Coordinates (dec. deg.): 61.55215°, -149.26843°
Legal Description: S017N001E22
Region: South Central
Road Name: private

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10260-2019-3030
Stream Name: Spring Creek

Elevation:

Site Comments: wetland both sides.

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 MSCS1-SP063

Observers: Edward Weiss, Olof Jacobsson, Gary Wheeler

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools:
Construction Year:


Comments: site cond=OTH=wetland both sides.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating: Green
 
Length(ft): 42.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.0 4.0
Height(ft):3.1 3.3
Apron Length(ft):
Water Depth(ft):2.3 2.2
Rustline Height(ft):
Substrate Depth(ft):0.8 0.7
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.04%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Cut-slope slumping or sliding into culvert (single event)

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Inlet Culvert Top 1 93.52
Outlet Culvert Top 1 93.54
D/S Tailcrest or 1st Thalweg 0.00 6.3 91.29
OHW Left Bank 2.30 4.0 90.88
Outlet Thalweg 1 6.30 0.0 90.45
Road Elev 27.30 96.55
Road Elev 27.30 96.68
Inlet Culvert Invert 1 48.30 0.0 90.11
Inlet Thalweg 1 48.30 0.0 90.11
U/S Thalweg 1 48.80 0.5 90.34
U/S Thalweg 51.30 3.0 90.00

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.

Photos

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