Fish Passage Improvement site 50101569

Fish Passage Site 50101569

Coordinates (dec. deg.): 64.69806°, -164.13921°
Legal Description: K009S027W19
Region: Arctic
Road Name: Council Road

Datum: NAD83
Quad Name / ITM: Solomon C-5
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Mile 49.4

Survey Date: Jul 04, 2006

Survey SEW05-COR14

site photos

Project Supervisor: Dave Ryland,
Observers: Dave Ryland, Kyle Negri

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Culvert is poorly aligned
Mechanical damage or joints parting

Comments: Small falls 250' d/s of crossing, see photos. Steps u/s and d/s consist of 150-300mm cobble;

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 112.7

Inlet Type: Flush

Outlet Type: Mitered

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.75

Condition Rating(1-5): 3

Approach Angle: 31.0

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	3.3	3.95
Height(ft):	4.0	4.0
Apron Length(ft):
Water Depth(ft):		0.3
Rustline Height(ft):	0.55
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Embedded Depth(ft): 0.0

Outfall Height: 0.0

Outfall Type: At Stream Grade

Constriction Ratio: 1.23

Culvert Gradient: 7.03%

Max Slope:

Max Slope Length:

Culvert Observations:

Culvert is poorly aligned
Mechanical damage or joints parting
Culvert gradient red

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	118.0	4.90
Upstream bank full	75.0	2.50
Upstream bank full	100.0	5.90
Upstream bank full	125.0	3.30
Upstream bank full	150.0	3.70
Upstream bed width
Upstream ordinary high water	75.0	1.60
Upstream ordinary high water	100.0	4.00
Upstream ordinary high water	125.0	2.50
Upstream ordinary high water	150.0	2.60

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Max Pool Depth				1.30
Outlet Pool Water Elev				79.82
D/S Thalweg		0.00	259.0	60.22
D/S Grade Ctrl (Thalweg)		11.00	248.0	63.33
D/S Grade Ctrl (Thalweg)		119.00	140.0	69.71
D/S Grade Ctrl (Thalweg)		139.00	120.0	71.76
D/S Grade Ctrl (Thalweg)		179.00	80.0	73.97
OHW (Outlet Tailcrest)		240.00	19.0	80.17
Bankfull		240.00	19.0	80.85
D/S Tailcrest or 1st Thalweg		240.00	19.0	79.70
D/S Thalweg		254.00	5.0	0.85
Outlet Invert	1	259.00	0.0	79.52
Road Elev		315.00		112.27
Inlet Culvert Invert	1	371.00	0.0	87.44
U/S Grade Ctrl (Thalweg)		374.00	3.0	87.14
U/S Grade Ctrl (Thalweg)		401.00	30.0	89.09
U/S Grade Ctrl (Thalweg)		446.00	75.0	92.73
U/S Grade Ctrl (Thalweg)		464.00	93.0	94.66
U/S Grade Ctrl (Thalweg)		497.00	126.0	98.49
U/S Grade Ctrl (Thalweg)		527.00	156.0	99.57

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.