Fish Passage Site 20300881

Coordinates (dec. deg.): 60.15142°, -151.35272°
Legal Description: S001N012W27
Region: South Central
Road Name: Falls Creek Road

Datum: NAD83
Quad Name / ITM: Kenai A-4
AWC Stream #:
Stream Name:

Elevation:

Site Comments: Location: Falls Creek Rd. Channel is narrow and overgrown with vegetation. Bank undercut ranged from 6-18”.

Survey Date: Jun 22, 2004

Survey KPC04-1A003

Observers: Mary King, Pam Russell

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Location: Falls Creek Rd. See data form for details. Stream: Channel is narrow and overgrown with vegetation. Bank undercut ranged from 6-18”. Flow through culvert appears natural, unaltered. Substrate appears unaltered and uniform, related to inside vs. outside pipe. Culvert: Benchmark is located on top of a survey monument mounted on rebar at outlet. Half arch has a log foundation (logs parallel to pipe with interior cross ties). Pipe condition = 4-5; minor deficiencies (rust and abrasion). Embedded-no.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 28.69
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):4.08
Height(ft):3.5
Apron Length(ft):
Water Depth(ft): 0.1
Rustline Height(ft):0.0
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.02
Outfall Type:
Constriction Ratio: 1.63
Culvert Gradient: 3.31%
Max Slope:
Max Slope Length:
 

Comments: Culvert: Benchmark is located on top of a survey monument mounted on rebar at outlet. Half arch has a log foundation (logs parallel to pipe with interior cross ties). Pipe condition = 4-5; minor deficiencies (rust and abrasion). Embedded-no.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream bank full 75.0 3.58
Upstream bank full 100.0 3.17
Upstream bank full 125.0 3.50
Upstream bank full 150.0 3.08
Upstream bed width 75.0 3.58
Upstream bed width 100.0 2.67
Upstream bed width 125.0 1.03
Upstream bed width 150.0 2.75
Upstream ordinary high water 75.0 3.58
Upstream ordinary high water 100.0 2.67
Upstream ordinary high water 125.0 1.03
Upstream ordinary high water 150.0 2.75

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 94.50
D/S Tailcrest or 1st Thalweg 94.79
OHW Left Bank 95.51
U/S Thalweg 1 96.00
OHW Left Bank 96.70
Outlet Culvert Top (Scratched a line on the top of the outlet pipe.) 1 100.00
Max Pool Depth 0.00 5.0 94.50
Outlet Invert 1 5.00 0.0 95.43
Road Elev (Road surface.) 19.00 101.33
Inlet Culvert Invert 1 33.00 0.0 96.38

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.

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