Fish Passage Improvement site 10302251

Fish Passage Site 10302251

Coordinates (dec. deg.): 58.41390°, -135.75546°
Legal Description: C040S058E12
Region: Southeast
Road Name: Mountain View Road

Datum: NAD83
Quad Name / ITM: Juneau B-6
AWC Stream #:
Stream Name: Good River

Elevation:

Site Comments: Driveway off of Mountain View Road. Approximately 200 feet upstream from MTV01.

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 SEA11-MTV02

site photos

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Jason Olds, Charmagne Gutierrez

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Outfall height red

Comments: No fish observed or trapped as stream is already in the AWC. Max pool measured with rod at 6.1 feet.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Red

Length(ft): 20.7

Inlet Type: Projecting

Outlet Type: Projecting

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.5

Condition Rating(1-5): 3

Approach Angle: 4.0

Sedimentation At Inlet: No

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	4.8	4.9
Height(ft):	5.2	5.1
Apron Length(ft):
Water Depth(ft):		0.37
Rustline Height(ft):	1.4
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height: 0.54

Outfall Type: Free Fall In To Pool

Constriction Ratio: 0.78

Culvert Gradient: 0.05%

Max Slope:

Max Slope Length:

Comments: Max pool depth measured with rod to be about 6.1 feet.

Culvert Observations:

Outfall height red

Stream Measurements

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

Stream Slope(deg.):	0.08
Stream Flow Stage:	Medium

No stream width data available.

Elevations

Locator ID	River Distance (ft)¹	Relative Elevation (ft)
Road Elev		104.75
D/S Tailcrest or 1st Thalweg	0.00	96.69
D/S Water Surface Elev	0.00	97.47
Outlet Invert	53.00	97.64
D/S Water Surface Elev	53.00	98.01
Outlet Culvert Top	53.00	102.76
Inlet Culvert Top	73.70	102.74
U/S Water Surface Elev	73.70	98.50
Inlet Culvert Invert	73.70	97.65
U/S Headwater	81.00	98.54
U/S Grade Ctrl (Thalweg) (Pool depth)	81.00	96.17
U/S Water Surface Elev (Stream gradient start)	129.00	98.58
U/S Grade Ctrl (Thalweg)	129.00	97.89
U/S Water Surface Elev (Stream gradient end)	285.00	98.71

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.