Fish Passage Improvement site 20501503

Fish Passage Site 20501503

Coordinates (dec. deg.): 62.43077°, -150.70657°
Legal Description: S027N008W14
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-2
AWC Stream #:
Stream Name: Deep Creek tributary

Elevation:

Site Comments: Channel stops 250' u/s, drains meadow.

Survey Date: Jul 02, 2009

Survey PRK09-PVR26

site photos

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Outfall height red
Culvert gradient red

Comments: **Updated site photos and fish sampling information added from 9/8/16 site visit from Sampling Unmapped Streams in the MSB project.** Channel stops 250' u/s, drains meadow. Good but limited fish habitat. Stream dry from 110' u/s but channel well-defined, probably full of water during spring runoff.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 40.4

Inlet Type: Projecting

Outlet Type: Projecting

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.67

Condition Rating(1-5): 3

Approach Angle: 36.0

Sedimentation At Inlet: Yes

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	1.5	1.5
Height(ft):	1.5	1.5
Apron Length(ft):
Water Depth(ft):		0.02
Rustline Height(ft):	0.7
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height: 3.03

Outfall Type: Free Fall In To Pool

Constriction Ratio: 0.85

Culvert Gradient: 2.72%

Max Slope:

Max Slope Length:

Culvert Observations:

Outfall height red
Culvert gradient red

Stream Measurements

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

Stream Slope(deg.):
Stream Flow Stage:	Low

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Upstream ordinary high water	60.0	1.50
Upstream ordinary high water	105.0	1.80
Upstream ordinary high water	160.0	2.00

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Outlet Pool Water Elev	1			94.38
U/S Headwater (Hole immed u/s)	1			98.55
D/S Grade Ctrl (Thalweg)	1	0.00	15.0	93.60
D/S Water Surface Elev (WS @ GP)	1	0.00	15.0	93.71
D/S Tailcrest or 1st Thalweg	1	6.00	9.0	94.29
D/S Water Surface Elev (WS @ TWC)	1	6.00	9.0	94.37
D/S Thalweg (bottom of pool)	1	11.50	3.5	92.75
D/S Thalweg	1	14.00	1.0	93.92
Outlet Invert	1	15.00	0.0	97.39
Road Elev	1	35.00		102.53
Inlet Culvert Invert	1	55.00	0.0	98.49

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.