Fish Passage Site 50101583

Coordinates (dec. deg.): 64.60459°, -165.43948°
Legal Description: K010S034W22
Region: Arctic
Road Name: New Glacier Creek Road

Datum: NAD83
Quad Name / ITM: Nome C-1
AWC Stream #:
Stream Name: Rock Creek

Elevation:

Site Comments: Mile 6.5

Survey Date: Sep 26, 2005

Survey SEW05-GCR02

Project Supervisor: Dave Ryland,
Observers: Dave Ryland, Jason Cheney, Paul Thompson

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Braided Channel, stream widths reflect entire channel.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 96.2
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 5
Approach Angle: 18.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: Boulder
InletOutlet
Width(ft):10.3 10.1
Height(ft):5.8 6.8
Apron Length(ft):
Water Depth(ft): 1.22
Rustline Height(ft):0.0
Substrate Depth(ft):4.5 3.3
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 3.9
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.26
Culvert Gradient: 1.54%
Max Slope:
Max Slope Length:
 

Comments: water depth outlet calculated;

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 365.0 14.10
Upstream bank full 75.0 68.20
Upstream bank full 100.0 65.10
Upstream bank full 125.0 63.60
Upstream bank full 150.0 59.10
Upstream bed width 75.0 12.10
Upstream bed width 100.0 14.40
Upstream bed width 125.0 27.30
Upstream bed width 150.0 10.60
Upstream ordinary high water 75.0 61.10
Upstream ordinary high water 100.0 48.90
Upstream ordinary high water 125.0 43.10
Upstream ordinary high water 150.0 27.40

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 1.20
Outlet Pool Water Elev 93.80
U/S Thalweg 95.61
D/S Grade Ctrl (Thalweg) 0.00 365.0 89.88
D/S Tailcrest or 1st Thalweg 343.00 22.0 91.12
OHW (Outlet Tailcrest) 343.00 22.0 93.39
D/S Thalweg 360.00 5.0 1.10
Outlet Invert 1 365.00 0.0 92.58
Road Elev 413.00 102.83
Inlet Culvert Invert 1 461.00 0.0 94.06
U/S Thalweg 481.00 20.0 95.98
U/S Thalweg 481.00 20.0 96.43
U/S Thalweg 536.00 75.0 96.19
U/S Thalweg 611.00 150.0 98.14

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