Fish Passage Site 20401455

Coordinates (dec. deg.): 61.55591°, -149.24984°
Legal Description: S017N001E22
Region: South Central
Road Name: Parks Highway

Datum: NAD83
Quad Name / ITM: Anchorage C-6
AWC Stream #: 247-50-10260-2019-3030
Stream Name: Spring Creek

Elevation:

Site Comments: MATANUSKA LAKE WATERSHED

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-SP084

Observers: Olof Jacobsson, Edward Weiss, Joe Conner

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: This pipe was recently extended on both ends from Parks Hwy expansion. STEEP STEEP fill grade sloughing in places fine sands gravel etc. input into stream from grade.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating: Gray
 
Length(ft):
Inlet Type: Flared Inlet
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):4.0 4.0
Height(ft):2.7 2.3
Apron Length(ft):
Water Depth(ft):1.8 1.4
Rustline Height(ft):
Substrate Depth(ft):1.3 1.7
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
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 Thalweg 1 6.0 55.70
Inlet Culvert Invert 1 0.0 55.99
U/S Thalweg 31.5 56.14
U/S Thalweg 1 12.0 57.42
U/S Thalweg 27.0 57.56
Inlet Culvert Top 1 59.10
D/S Thalweg 6.5 69.00
D/S Thalweg 4.5 69.62
Max Pool Depth (Edge of Apron) 4.0 69.70
Outlet Invert 1 0.0 70.79
D/S Thalweg 30.0 72.31
Outlet Culvert Top 1 73.13

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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