Fish Passage Site 20303753

Coordinates (dec. deg.): 60.54926°, -150.75282°
Legal Description: S005N008W06
Region: South Central
Road Name: Moose River Drive

Datum: NAD83
Quad Name / ITM: Kenai C-3
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 14, 2017

Survey KEN17-MRD02

Observers: Elise Idle, Maggie Schaffer

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Constriction ratio gray
  3. Structural Problem

Comments: Assessment information collected and submitted by USFWS. Resting pool at inlet, then shallows out at approximately 16 feet, stays shallow and meanders out at 52 feet. Outlet is ripped open, downstream divides into two sections, one of which becomes pooled.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 34.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.6
Corrugation Width(in.): 2.5
Condition Rating(1-5): 2
Approach Angle: 28.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):2.6 2.5
Height(ft):2.25 2.25
Apron Length(ft):
Water Depth(ft): 0.26
Rustline Height(ft):0.7
Substrate Depth(ft):0.0 0.25
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.83
Culvert Gradient: 2.05%
Max Slope:
Max Slope Length:
 

Comments: outlet is ripped open.

  Culvert Observations:
  1. Culvert gradient red
  2. Constriction ratio gray
  3. Structural Problem

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayCobble
Subdominant:CobbleSilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Upstream ordinary high water 11.0 4.70
Upstream ordinary high water 21.0 2.90
Upstream ordinary high water 29.0 3.80
Upstream ordinary high water 51.0 1.20

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Road Elev 101.47
D/S Thalweg 0.00 94.43
D/S Water Surface Elev 0.00 94.48
D/S Thalweg 16.00 94.70
D/S Water Surface Elev 16.00 95.19
D/S Thalweg 31.00 95.62
D/S Water Surface Elev 31.00 95.75
D/S Thalweg 54.00 96.72
D/S Water Surface Elev 54.00 96.84
Outlet Invert (On substrate) 67.00 96.94
D/S Water Surface Elev 67.00 97.20
Outlet Culvert Top 67.00 99.30
Inlet Culvert Top 101.10 100.00
Inlet Culvert Invert (On pipe) 101.10 97.35
U/S Water Surface Elev 101.10 97.35
U/S Water Surface Elev 117.10 97.78
U/S Grade Ctrl (Thalweg) (1st resting) 117.10 95.94
U/S Thalweg 148.10 98.05
U/S Water Surface Elev 148.10 98.33

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: Minnow Trap (A) Trap Duration(h): 1.0
Comments: No Fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: No Fish

Fish Observations

No fish observations occurred during this survey.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov