Fish Passage Site 20501402

Coordinates (dec. deg.): 62.33683°, -150.56422°
Legal Description: S026N007W15
Region: South Central
Road Name: Petersville Road

Datum: NAD83
Quad Name / ITM: Talkeetna B-2
AWC Stream #: 247-41-10200-2081-3194-4016
Stream Name: Seventeen Mile Creek tributary

Elevation:

Site Comments: SUSITNA RIVER 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 MSB23-MS080

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 79.91
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 23.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):6.1 6.1
Height(ft):6.1 6.1
Apron Length(ft):
Water Depth(ft):0.0 0.53
Rustline Height(ft):1.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.83
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandCobble
Subdominant:Silt/ClaySand
Stream Slope(deg.):1.63
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Upstream ordinary high water 45.0 8.60
Upstream ordinary high water 62.0 6.60
Upstream ordinary high water 91.0 7.50
Upstream ordinary high water 110.0 6.70

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
U/S Thalweg 0.00 88.29
U/S Water Surface Elev 0.00 89.17
U/S Water Surface Elev 35.00 89.14
U/S Thalweg 35.00 88.39
Inlet Culvert Invert 115.00 88.51
U/S Water Surface Elev (Culvert water surface) 115.00 88.94
Inlet Culvert Top 115.00 94.82
Outlet Culvert Top 194.91 93.46
Outlet Invert 194.91 86.83
D/S Water Surface Elev (Culvert water surface) 194.91 87.36
D/S Thalweg 231.91 86.19
D/S Water Surface Elev 231.91 86.47
D/S Thalweg 266.91 85.00
D/S Water Surface Elev 266.91 85.46
D/S Thalweg 316.91 83.72
D/S Water Surface Elev 316.91 83.99

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