Fish Passage Improvement site 50101587

Fish Passage Site 50101587

Coordinates (dec. deg.): 64.66650°, -165.40649°
Legal Description: K009S034W35
Region: Arctic
Road Name: Glacier Creek Road

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

Elevation:

Site Comments: Mile 9.0 Glacier Creek Rd, P.O.B. = intersection of new section and Teller Road.

Survey Date: Sep 30, 2005

Survey SEW05-GCR06

site photos

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Culvert is poorly aligned
Road bank erosion
Shallow fill; inadequate roadfill volume above culvert
Culvert gradient red
Constriction ratio red
Outfall height red

Comments: None

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 24.5

Inlet Type: Mitered

Outlet Type: Mitered

Corrugation Depth(in.): 0.75

Corrugation Width(in.): 2.75

Condition Rating(1-5): 3

Approach Angle: 41.0

Sedimentation At Inlet: Yes

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	3.0	3.0
Height(ft):	3.0	3.0
Apron Length(ft):
Water Depth(ft):		0.6
Rustline Height(ft):	0.6
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Embedded Depth(ft): 0.0

Outfall Height: 0.39

Outfall Type:

Constriction Ratio: 0.29

Culvert Gradient: 12.20%

Max Slope:

Max Slope Length:

Culvert Observations:

Culvert is poorly aligned
Road bank erosion
Shallow fill; inadequate roadfill volume above culvert
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:	High

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water
Downstream ordinary high water	132.0	5.30
Upstream bank full	75.0	46.10
Upstream bank full	100.0	44.20
Upstream bank full	125.0	33.80
Upstream bank full	150.0	63.40
Upstream bed width	75.0	5.40
Upstream bed width	100.0	6.80
Upstream bed width	125.0	4.10
Upstream bed width	150.0	5.30
Upstream ordinary high water	75.0	12.80
Upstream ordinary high water	100.0	16.10
Upstream ordinary high water	125.0	6.40
Upstream ordinary high water	150.0	6.80

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Max Pool Depth				3.10
Outlet Pool Water Elev				95.19
U/S Thalweg				99.14
D/S Grade Ctrl (Thalweg)		0.00	132.0	90.54
D/S Tailcrest or 1st Thalweg		114.00	18.0	94.94
OHW (Outlet Tailcrest)		114.00	18.0	95.10
D/S Thalweg		127.00	5.0	3.10
Outlet Invert	1	132.00	0.0	94.98
Road Elev		144.00		100.22
Inlet Culvert Invert	1	156.00	0.0	97.97
U/S Thalweg		162.00	6.0	98.34
U/S Thalweg		164.00	8.0	98.74
U/S Thalweg		231.00	75.0	99.94
U/S Thalweg		281.00	125.0	100.87

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.