Fish Passage Improvement site 50101656

Fish Passage Site 50101656

Coordinates (dec. deg.): 64.88120°, -166.15227°
Legal Description: K007S037W15
Region: Arctic
Road Name: Teller Road

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

Elevation:

Site Comments: No milepost.

Survey Date: Oct 06, 2005

Survey SEW05-TR17

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
Compound gradient in pipe

Comments: None

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Structural steel plate)

Fish Passage Rating: Red

Length(ft): 76.8

Inlet Type: Flush

Outlet Type: Mitered

Corrugation Depth(in.): 2.0

Corrugation Width(in.): 6.0

Condition Rating(1-5): 3

Approach Angle: 0.0

Sedimentation At Inlet: Yes

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	8.2
Height(ft):	8.2
Apron Length(ft):
Water Depth(ft):		0.6
Rustline Height(ft):	1.2
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Embedded Depth(ft): 0.0

Outfall Height: 1.36

Outfall Type: Free Fall In To Pool

Constriction Ratio: 0.3

Culvert Gradient: 5.60%

Max Slope:

Max Slope Length:

Comments: Invert has compound slope, gets steeper at inlet;

Culvert Observations:

Outfall height red
Culvert gradient red
Constriction ratio red
Compound gradient in pipe

Stream Measurements

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

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water
Downstream ordinary high water	95.0	23.50
Upstream bank full	75.0	57.20
Upstream bank full	100.0	55.30
Upstream bank full	125.0	62.20
Upstream bank full	150.0	46.90
Upstream bed width	75.0	11.80
Upstream bed width	100.0	17.20
Upstream bed width	125.0	18.00
Upstream bed width	150.0	13.50
Upstream ordinary high water	75.0	25.20
Upstream ordinary high water	100.0	27.30
Upstream ordinary high water	125.0	27.90
Upstream ordinary high water	150.0	27.60

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Max Pool Depth				2.60
Outlet Pool Water Elev				90.84
D/S Grade Ctrl (Thalweg)		0.00	95.0	85.18
D/S Tailcrest or 1st Thalweg		76.00	19.0	90.03
OHW (Outlet Tailcrest)		76.00	19.0	90.24
D/S Thalweg		90.00	5.0	2.60
Outlet Invert	1	95.00	0.0	91.60
Road Elev		133.00		104.14
U/S Grade Ctrl (Thalweg)		159.20	-11.8	93.89
Inlet Culvert Invert	1	171.00	0.0	95.90
U/S Thalweg		187.00	16.0	96.63
U/S Thalweg		321.00	150.0	100.70

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.