Fish Passage Site 20300927

Coordinates (dec. deg.): 59.27855°, -151.65529°
Legal Description: S010S014W28
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: Substrate is gravel/pebble. Streambank vegetation varied from open to dense cover.

Survey Date: Aug 18, 2004

Survey KPC04-1A111

Observers: Mary King, Pam Russell

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Location: Port Graham Stream: Substrate is gravel/pebble. Streambank vegetation varied from open to dense cover. Outlet pool is minimal, having a very small tailcrest. Flow measurements were done 70" upstream; rocks and a tree were problematic. Culvert: Arch is supported on rocks and is slightly embedded at outlet. Pipe condition=5.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 41.36
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: Gravel
Outlet Substrate:
InletOutlet
Width(ft):5.83
Height(ft):4.42
Apron Length(ft):
Water Depth(ft): 0.14
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.06
Outfall Type:
Constriction Ratio: 0.82
Culvert Gradient: 0.12%
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 11.33
Upstream bank full 100.0 8.08
Upstream bank full 125.0 8.75
Upstream bank full 150.0 8.33
Upstream bed width 75.0 4.52
Upstream bed width 100.0 2.33
Upstream bed width 125.0 4.75
Upstream bed width 150.0 2.67
Upstream ordinary high water 75.0 9.00
Upstream ordinary high water 100.0 6.75
Upstream ordinary high water 125.0 6.92
Upstream ordinary high water 150.0 5.92

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 96.98
D/S Tailcrest or 1st Thalweg 97.04
OHW Left Bank 97.21
OHW Left Bank 97.31
U/S Thalweg 1 98.05
Outlet Culvert Top (Orange painted "X" on top of culvert. Measurement taken from 1st full corrugation.) 1 100.00
Max Pool Depth 0.00 5.0 96.13
Outlet Invert (measurement from substrate.) 1 5.00 0.0 97.13
Road Elev (Road surface.) 25.50 102.01
Inlet Culvert Invert 1 46.00 0.0 97.18

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.

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