Fish Passage Improvement site 50101557

Fish Passage Site 50101557

Coordinates (dec. deg.): 64.84544°, -163.70360°
Legal Description: K007S025W27
Region: Arctic
Road Name: Council Road

Datum: NAD83
Quad Name / ITM: Solomon D-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Mile 70.3. Overflow pipe located N of site with ditch connecting the two.

Survey Date: Jun 30, 2006

Survey SEW05-COR02

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
Culvert gradient red
Constriction ratio gray

Comments: None

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 46.3

Inlet Type: Mitered

Outlet Type: Mitered

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.75

Condition Rating(1-5): 3

Approach Angle: 61.0

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	3.7	3.8
Height(ft):	3.7	3.9
Apron Length(ft):
Water Depth(ft):		0.15
Rustline Height(ft):	0.9
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: 0.53

Culvert Gradient: 2.61%

Max Slope: 11.0

Max Slope Length: 12.7

Comments: Water depth in outlet calculated from invert elev and tailwater elev. Compound gradient in pipe with break 12.7' downstream of inlet. This section is 11% slope as measured by clinometer & rod. Overflow pipe present but not surveyed.

Culvert Observations:

Culvert is poorly aligned
Culvert gradient red
Constriction ratio gray

Stream Measurements

Stream Substrates	Upstream	Downstream
Dominant:	Silt/Clay	Gravel
Subdominant:	Silt/Clay	Gravel

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water	53.0	5.70
Downstream ordinary high water	94.0	6.40
Upstream bank full	75.0	11.00
Upstream bank full	100.0	13.00
Upstream bank full	125.0	14.00
Upstream bank full	150.0	5.00
Upstream bed width
Upstream ordinary high water	75.0	7.60
Upstream ordinary high water	100.0	7.90
Upstream ordinary high water	125.0	9.20
Upstream ordinary high water	150.0	3.40

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Max Pool Depth				1.40
Outlet Pool Water Elev				94.92
D/S Grade Ctrl (Thalweg)		0.00	94.0	92.79
D/S Grade Ctrl (Thalweg)		41.00	53.0	93.67
D/S Tailcrest or 1st Thalweg		83.70	10.3	94.18
OHW (Outlet Tailcrest)		83.70	10.3	95.00
Bankfull		83.70	10.3	95.17
D/S Thalweg		85.30	8.7	94.53
D/S Thalweg		89.00	5.0	1.30
Outlet Invert	1	94.00	0.0	94.77
D/S Grade Ctrl (Thalweg)		94.00	0.0	94.20
Road Elev		117.00		102.61
Inlet Culvert Invert	1	140.00	0.0	95.98
U/S Grade Ctrl (Thalweg)		142.50	2.5	95.56
U/S Grade Ctrl (Thalweg)		153.00	13.0	95.35
U/S Thalweg		215.00	75.0	96.15
U/S Thalweg		290.00	150.0	95.94

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.

Fish Sampling Efforts

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

Photos

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