Fish Passage Improvement site 50101655

Fish Passage Site 50101655

Coordinates (dec. deg.): 64.89113°, -166.16633°
Legal Description: K007S037W09
Region: Arctic
Road Name: Teller Road

Datum: NAD83
Quad Name / ITM: Nome D-3
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Mile 41.2. 36" overflow pipe located to the S of main pipe.

Survey Date: Oct 06, 2005

Survey SEW05-TR16

site photos

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Outfall height red
Culvert gradient red
Constriction ratio red

Comments: Seeps and springs at toe of road bank on d/s side of x-ing, see photos.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 90.9

Inlet Type: Mitered

Outlet Type: Mitered

Corrugation Depth(in.): 0.75

Corrugation Width(in.): 2.75

Condition Rating(1-5): 3

Approach Angle: 9.0

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	5.8
Height(ft):	6.2
Apron Length(ft):
Water Depth(ft):		0.4
Rustline Height(ft):	1.4
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Embedded Depth(ft): 0.0

Outfall Height: 2.3

Outfall Type: Cascade Over Rip-Rap

Constriction Ratio: 0.46

Culvert Gradient: 3.49%

Max Slope:

Max Slope Length:

Culvert Observations:

Outfall height red
Culvert gradient red
Constriction ratio red

Stream Measurements

Stream Substrates	Upstream	Downstream
Dominant:	Gravel	Gravel
Subdominant:	Cobble	Cobble

Stream Slope(deg.):
Stream Flow Stage:	Medium

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water
Downstream ordinary high water	122.0	10.50
Upstream bank full	75.0	9.50
Upstream bank full	100.0	11.50
Upstream bank full	125.0	17.20
Upstream bank full	150.0	24.50
Upstream bed width	75.0	4.70
Upstream bed width	100.0	7.30
Upstream bed width	125.0	12.40
Upstream bed width	150.0	14.30
Upstream ordinary high water	75.0	7.20
Upstream ordinary high water	100.0	7.70
Upstream ordinary high water	125.0	14.50
Upstream ordinary high water	150.0	21.30

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				84.98
D/S Grade Ctrl (Thalweg)		0.00	122.0	78.27
D/S Tailcrest or 1st Thalweg		109.00	13.0	84.11
OHW (Outlet Tailcrest)		109.00	13.0	84.97
D/S Thalweg		117.00	5.0	1.00
D/S Grade Ctrl (Thalweg)		121.50	0.5	84.81
Outlet Invert	1	122.00	0.0	86.88
Road Elev		167.00		107.46
Inlet Culvert Invert	1	212.00	0.0	90.05
U/S Thalweg		224.00	12.0	90.63
U/S Thalweg		287.00	75.0	94.08
U/S Thalweg		362.00	150.0	96.43

Notes:

River distance is measured continuously throughout the survey reach along the thalweg of the stream.
Measured from each end of the crossing along the thalweg of the stream.