Fish Passage Site 20300920

Coordinates (dec. deg.): 59.30175°, -151.71189°
Legal Description: S010S014W19
Region: South Central
Road Name: Port Graham

Datum: NAD83
Quad Name / ITM: Seldovia B-5
AWC Stream #: 241-20-10550-2019
Stream Name:

Elevation:

Site Comments: Location: Port Graham Stream: Stream drains an open marsh. Banks are densely vegetated. Channel is narrow, deeply incised. Substrate is sand/ muck (very soft) upstream and gravel downstream.

Survey Date: Aug 17, 2004

Survey KPC04-1A098

Observers: Mary King, Pam Russell

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Location: Port Graham Stream: Stream drains an open marsh. Banks are densely vegetated. Channel is narrow, deeply incised. Substrate is sand/ muck (very soft) upstream and gravel downstream. No detectable flow (no measurements taken). Bank undercut 3"-5'. Culvert: Pipe condition=5. Not embedded. Appears to function well. Note: Waypoint error for relocating sites in Port Graham area was ~400'. Two pipes were located in this road section. Measurements were taken on the pipe with the 400' error.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 40.64
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: Sand
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.0
Height(ft):4.08
Apron Length(ft):
Water Depth(ft): 0.26
Rustline Height(ft):0.58
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.11
Outfall Type:
Constriction Ratio: 2.02
Culvert Gradient: 0.79%
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 3.42
Upstream bank full 100.0 3.00
Upstream bank full 125.0 3.50
Upstream bank full 150.0 1.75
Upstream bed width 75.0 2.00
Upstream bed width 100.0 1.92
Upstream bed width 125.0 2.92
Upstream bed width 150.0 0.67
Upstream ordinary high water 75.0 2.50
Upstream ordinary high water 100.0 1.92
Upstream ordinary high water 125.0 2.83
Upstream ordinary high water 150.0 0.67

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 96.14
D/S Tailcrest or 1st Thalweg 96.20
OHW Left Bank 96.37
OHW Left Bank 96.46
U/S Thalweg 1 96.54
Outlet Culvert Top (Orange paninted "X" on outlet, measurement taken on 3rd corrugation.) 1 100.00
Max Pool Depth 0.00 5.0 95.58
Outlet Invert 1 5.00 0.0 96.09
Road Elev (Road surface.) 25.00 101.34
Inlet Culvert Invert 1 45.00 0.0 96.41

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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