Fish Passage Improvement site 20601537

Fish Passage Site 20601537

Coordinates (dec. deg.): 61.17976°, -151.20194°
Legal Description: S013N011W35
Region: South Central
Road Name: Logging Road

Datum: NAD83
Quad Name / ITM: Tyonek A-4
AWC Stream #:
Stream Name: 3 Mile 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 TYCS1-TY011

site photos

Observers: Cecil Rich, Michael Anderson, Joe Buckwalter

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Comments: Datum = WGS84. gps error-30.9 ft.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated Metal)

Fish Passage Rating:

Length(ft): 101.5

Inlet Type: Projecting

Outlet Type:

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 3.0

Condition Rating(1-5):

Approach Angle:

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	4.9	4.9
Height(ft):
Apron Length(ft):
Water Depth(ft):	0.3	0.5
Rustline Height(ft):
Substrate Depth(ft):	0.0	0.0

Backwatered?:

Baffles Present: No

Embedded?: No

Outfall Height: 1.87

Outfall Type:

Constriction Ratio: 0.59

Culvert Gradient: -0.78%

Max Slope:

Max Slope Length:

Culvert Observations:

None of this type

Stream Measurements

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

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water	108.0	7.30
Downstream ordinary high water	169.0	16.00
Upstream ordinary high water	5.0	15.60
Upstream ordinary high water	185.0	7.20
Upstream ordinary high water	243.0	9.50

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
D/S Tailcrest or 1st Thalweg				85.53
OHW Left Bank				86.58
D/S Thalweg		0.00	169.88	85.48
D/S Water Surface Elev		0.08	169.8	85.71
D/S OHW Elev		0.08	169.8	87.92
D/S Thalweg		61.88	108.0	85.80
D/S Water Surface Elev		61.88	108.0	86.09
D/S OHW Elev		61.88	108.0	86.98
D/S Thalweg		158.18	11.7	82.81
Max Pool Depth		164.88	5.0	83.58
OHW Left Bank		164.88	5.0	87.68
Outlet Invert	1	169.88	0.0	87.95
Outlet Rustline Height	1	169.88	0.0	89.00
Outlet Thalweg	1	169.88	0.0	85.25
Road Elev		220.38		112.27
Road Elev		220.38		112.35
Inlet Rustline Height	1	270.88	0.0	89.06
Inlet Thalweg	1	270.88	0.0	85.98
Inlet Culvert Invert	1	270.88	0.0	87.16
U/S Thalweg	1	271.88	1.0	85.97
U/S Thalweg	1	275.88	5.0	86.65
U/S Thalweg	1	280.68	9.8	86.37
U/S Headwater		455.88	185.0	88.19
U/S Thalweg		455.88	185.0	86.16
U/S Water Surface Elev		455.88	185.0	87.41
U/S Water Surface Elev		513.88	243.0	87.47
U/S Thalweg		513.88	243.0	86.25
U/S Headwater		513.88	243.0	89.18

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.

Fish Sampling Efforts

Gear Type: Minnow Trap, 1/4 in. Mesh (A)		Trap Duration(h): 2.75

Gear Type: Minnow Trap, 1/4 in. Mesh (B)		Trap Duration(h): 2.75

Fish Observations

Species: juvenile/adult sculpin-unspecified		Life History: Unknown
Total Fish Observed: 1	Fish Measured:	Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap, 1/4 in. Mesh (1)

Species: no fish collected or observed		Life History: Not Applicable
Total Fish Observed: 0	Fish Measured:	Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Minnow Trap, 1/4 in. Mesh (0)
Comments: findme

Photos

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