Fish Passage Site 20501515

Coordinates (dec. deg.): 62.01909°, -149.94826°
Legal Description: S022N004W02
Region: South Central
Road Name: Shaman Road

Datum: WGS84
Quad Name / ITM: Talkeetna Mts A-6
AWC Stream #: 247-41-10200-2190-3020-4052
Stream Name: Caswell Creek Tributary

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 PRK09-SHA02

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Site Observations:

  1. Constriction ratio gray
  2. Culvert gradient red
  3. Outfall height gray

Comments: Pipe 2 is dry overflow. Pipe 1 has rust line at 1 foot on one side and 2.7 feet on the other, possibly this culvert was turned after flood. **Updated site photos and fish sampling information added from site visit on 8/24/16 from Sampling Unmapped Streams in the MSB project. Site scheduled to be replaced in 2019.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 40.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.1 3.0
Apron Length(ft):
Water Depth(ft): 0.09
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.06
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.52
Culvert Gradient: 1.36%
Max Slope:
Max Slope Length:
 

Comments: Rust line at 1ft on one side, 2.7ft on other side. Maybe pipe has been turned (after blowout?)
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert gradient red
  3. Outfall height gray
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 40.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 4
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 1.9
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio: 0.52
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Pipe 2 is dry overflow pipe

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:CobbleSilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 42.0 8.50
Upstream ordinary high water 75.0 4.00
Upstream ordinary high water 132.0 5.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 95.22
U/S Headwater 1 96.04
(top of outlet, overflow pipe) 2 99.07
D/S Water Surface Elev 1 0.00 32.0 95.06
D/S Grade Ctrl (Thalweg) 1 0.00 32.0 94.81
D/S Tailcrest or 1st Thalweg 1 13.00 19.0 94.94
D/S Water Surface Elev 1 13.00 19.0 95.22
D/S Water Surface Elev 1 22.60 9.4 96.33
D/S Thalweg (pool bottom) 1 24.00 8.0 93.76
D/S Thalweg 1 27.50 4.5 93.78
Outlet Invert 1 32.00 0.0 95.19
Road Elev 52.00 101.71
Inlet Culvert Invert (overflow pipe) 2 72.00 0.0 98.08
Inlet Culvert Invert (main pipe main pipe) 1 72.00 0.0 95.74
U/S Thalweg 1 75.80 3.8 95.76
U/S Grade Ctrl (Thalweg) (1st TC u/s) 1 81.40 9.4 96.03

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

Gear Type: Smith-Root LR-24 (A)
Comments: Site Sampled 8/24/16

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 7 Fish Measured: 7 Fork Lengths (mm) Min: 61 Max: 86 Mean: 70
Collected/Observed by Gear Type: Upstream Smith-Root LR-24 (7)  
 
Species: juvenile Chinook salmon Life History: Anadromous
Total Fish Observed: 2 Fish Measured: 2 Fork Lengths (mm) Min: 73 Max: 84 Mean: 78
Collected/Observed by Gear Type: Upstream Smith-Root LR-24 (2)  

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