Fish Passage Site 20300908

Coordinates (dec. deg.): 59.33480°, -151.81748°
Legal Description: S010S015W04
Region: South Central
Road Name: Port Graham

Datum: NAD83
Quad Name / ITM: Seldovia B-5
AWC Stream #:
Stream Name:

Elevation:

Site Comments: Location: Port Graham Stream: Channel width up and downstream of pipe is 2-3'.

Survey Date: Sep 19, 2004

Survey KPC04-1A079

Observers: Mary King, Pam Russell

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Location: Port Graham Stream: Channel width up and downstream of pipe is 2-3'. The stream enters the arch on a meander, causing erosion of the foundation on the left bank. Gravel substrate (small with some larger rocks) is unaltered and uniform inside the arch. Streamside is densely vegetated. No pool or tailcrest at the outlet. Bank undercut 3-7". Flow measurements taken 30' upstream; rocks problematic. Culvert: Pipe condition=5. No embedded--natural substrate.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 40.87
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):7.08
Height(ft):4.0
Apron Length(ft):
Water Depth(ft): 0.2
Rustline Height(ft):0.0
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.24
Outfall Type:
Constriction Ratio: 1.22
Culvert Gradient: 2.84%
Max Slope:
Max Slope Length:

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 5.92
Upstream bank full 100.0 10.33
Upstream bank full 125.0 7.00
Upstream bank full 150.0 5.75
Upstream bed width 75.0 1.67
Upstream bed width 100.0 5.92
Upstream bed width 125.0 4.83
Upstream bed width 150.0 1.17
Upstream ordinary high water 75.0 4.67
Upstream ordinary high water 100.0 8.83
Upstream ordinary high water 125.0 5.50
Upstream ordinary high water 150.0 4.25

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
OHW Left Bank 96.74
U/S Thalweg 1 97.38
Outlet Culvert Top (Flourescent painted "X" on top of outlet. Measurement taken from 1st full corrugation) 1 100.00
Max Pool Depth 0.00 5.0 96.19
Outlet Invert 1 5.00 0.0 96.30
Road Elev (Road surface) 25.00 101.58
Inlet Culvert Invert (From center of invert measurement falls on gravel bar. Stream flows down Left Bank.) 1 45.00 0.0 97.46

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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