Fish Passage Site 20300905

Coordinates (dec. deg.): 59.88105°, -151.56042°
Legal Description: S003S013W29
Region: South Central
Road Name: Tall Tree Road

Datum: NAD83
Quad Name / ITM: Seldovia D-5
AWC Stream #: 244-10-10010-2011-3031-4038-5033-6008
Stream Name:

Elevation:

Site Comments: Location: Tall Tree Rd.

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 KPC04-1A061

Observers: Mary King, Pam Russell

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Location: Tall Tree Rd. Stream: Channel is narrow and deeply incised with dense vegetation both up and downstream of the pipe. Bank undercut ranged from 10-30". The stream was too shallow to do stream flow. Within arch, stream has gravel substrate with pools. Culvert: The arch is supported on logs laid perpendular to the pipe; 3' of erosion in some locations along the pipe. Pipe condition=5, functional but may be problematic in long term if further erosion causing foundation to fail. Not embedded (normal substrate).

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 46.34
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):6.42
Height(ft):4.08
Apron Length(ft):
Water Depth(ft): 0.09
Rustline Height(ft):0.0
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 3.22
Outfall Type:
Constriction Ratio: 3.31
Culvert Gradient: 1.40%
Max Slope:
Max Slope Length:
 

Comments: Culvert: The arch is supported on logs laid perpendular to the pipe; 3' of erosion in some locations along the pipe. Pipe condition=5, functional but may be problematic in long term if further erosion causing foundation to fail. Not embedded (normal substrate).

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 1.83
Upstream bank full 100.0 3.00
Upstream bank full 125.0 3.33
Upstream bank full 150.0 3.08
Upstream bed width 1.17
Upstream bed width 1.67
Upstream bed width 2.75
Upstream bed width 150.0 2.08
Upstream ordinary high water 75.0 1.17
Upstream ordinary high water 100.0 1.67
Upstream ordinary high water 125.0 2.75
Upstream ordinary high water 150.0 2.17

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
OHW Left Bank 92.59
U/S Thalweg 1 94.05
Outlet Culvert Top (Orange "X" painted on top of culvert, placed rod on center of X.) 1 100.00
Max Pool Depth 0.00 5.0 92.01
Outlet Invert (11.06 from pipe bottom-14.26 from substrate.) 1 5.00 0.0 95.72
Road Elev (Road surface.) 28.00 101.11
Inlet Culvert Invert (10.41 from pipe bottom-13.34 from substrate.) 1 51.00 0.0 96.37

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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