Fish Passage Improvement site 20501403

Fish Passage Site 20501403

Coordinates (dec. deg.): 62.28347°, -150.42348°
Legal Description: S025N006W05
Region: South Central
Road Name: Oil Well Road

Datum: NAD83
Quad Name / ITM: Talkeetna B-1
AWC Stream #:
Stream Name: Moose Creek tributary

Elevation:

Site Comments: SUSITNA RIVER WATERSHED

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 UPDATE-OWR01

site photos

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Gillian O'Doherty

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2014

Site Observations:

None of this type

Comments: Replaced in 2014, site resurveyed Oct 21, 2015. Rip rap from ditch falling into inlet. Upstream all wood controlled. Stream gradient taken from replacement survey. Upstream gradient 1.45%, downstream gradient 2.10%. No fish observed during visit.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated aluminum)

Fish Passage Rating: Green

Length(ft): 53.5

Inlet Type: Headwall

Outlet Type: Projecting

Corrugation Depth(in.): 1.0

Corrugation Width(in.): 3.0

Condition Rating(1-5): 5

Approach Angle: 0.0

Sedimentation At Inlet: No

Inlet Substrate: Gravel

Outlet Substrate: Gravel

	Inlet	Outlet
Width(ft):	7.1	7.3
Height(ft):	4.2	3.8
Apron Length(ft):
Water Depth(ft):		0.31
Rustline Height(ft):
Substrate Depth(ft):	3.8	4.2

Backwatered?: No

Baffles Present: No

Embedded?: Yes

Embedded Depth(ft): 3.8

Outfall Height: 0.0

Outfall Type: At Stream Grade

Constriction Ratio: 1.22

Culvert Gradient: 2.49%

Max Slope:

Max Slope Length:

Culvert Observations:

None of this type

Stream Measurements

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

Stream Slope(deg.):	1.45
Stream Flow Stage:	Medium

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Upstream ordinary high water	100.0	7.60
Upstream ordinary high water	150.0	4.50
Upstream ordinary high water	200.0	5.50

Elevations

Locator ID	River Distance (ft)¹	Relative Elevation (ft)
Road Elev		100.54
Outlet Culvert Top	0.00	96.98
Outlet Invert (On substrate)	0.00	93.20
D/S Water Surface Elev	0.00	93.51
Inlet Culvert Invert (On substrate)	53.50	93.97
U/S Water Surface Elev	53.50	94.48
Inlet Culvert Top	53.50	98.21

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.