Fish Passage Improvement site 20502069

Fish Passage Site 20502069

Coordinates (dec. deg.): 63.11294°, -147.50929°
Legal Description: F021S001E11
Region: South Central
Road Name: Valdez Mining District Road

Datum: NAD83
Quad Name / ITM: Healy A-2
AWC Stream #:
Stream Name: Windy Creek

Elevation:

Site Comments: None

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey MSB11-VMD01

site photos

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: John Greuey, Abraham Gioffre

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Constriction ratio red
Culvert sagging in middle
Culvert gradient gray

Comments: Creek appears to be a braided off shoot channel of Windy Creek.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 79.61

Inlet Type: Projecting

Outlet Type: Projecting

Corrugation Depth(in.): 1.0

Corrugation Width(in.): 3.0

Condition Rating(1-5): 3

Approach Angle: 10.0

Sedimentation At Inlet: No

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	5.73	5.8
Height(ft):	5.85	5.85
Apron Length(ft):	0.0	0.0
Water Depth(ft):		3.0
Rustline Height(ft):	2.1
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height: 0.0

Outfall Type: At Stream Grade

Constriction Ratio: 0.24

Culvert Gradient: 1.40%

Max Slope:

Max Slope Length:

Culvert Observations:

Constriction ratio red
Culvert sagging in middle
Culvert gradient gray

Stream Measurements

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

Stream Slope(deg.):	1.55
Stream Flow Stage:	Medium

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water	80.0	26.50
Downstream ordinary high water	122.0	24.80
Downstream ordinary high water	153.0	21.40

Elevations

Locator ID	River Distance (ft)¹	Relative Elevation (ft)
D/S Thalweg (Profile point in middle of glide)	0.00	93.37
D/S Water Surface Elev	0.00	94.29
Max Pool Depth (Profile point in pool)	30.00	93.31
D/S Water Surface Elev	30.00	94.51
D/S Grade Ctrl (Thalweg) (Top of riffle)	102.00	95.11
D/S Water Surface Elev	102.00	95.87
D/S Tailcrest or 1st Thalweg (Tail water control)	190.00	96.60
D/S Water Surface Elev (Tail water surface)	190.00	97.25
Outlet Pool Water Elev (Water surface at outlet max pool)	236.00	97.33
Max Pool Depth (Outlet pool max pool depth, on cobble.)	236.00	94.45
Outlet Invert (On pipe)	244.00	94.33
D/S Water Surface Elev (Water surface at outlet)	244.00	97.33
Outlet Culvert Top	244.00	100.28
Road Elev	288.00	102.52
Inlet Culvert Top	323.61	101.38
U/S Water Surface Elev (Water surface at inlet)	323.61	97.33
Inlet Culvert Invert (On pipe)	323.61	95.44
U/S Thalweg (Profile point mid point of glide.)	403.61	97.08
U/S Water Surface Elev	403.61	97.91

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.