Fish Passage Improvement site 20301020

Fish Passage Site 20301020

Coordinates (dec. deg.): 59.74465°, -151.25633°
Legal Description: S005S012W13
Region: South Central
Road Name: East End Road

Datum: NAD83
Quad Name / ITM: Seldovia C-4
AWC Stream #:
Stream Name: McNeil Creek

Elevation:

Site Comments: None

Survey Date: Jul 12, 2001

Survey KPCS1-SK029

site photos

Observers: Cecil Rich

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Comments: 2 foot perch at outlet from apron. Thaw heat pipe broken. Heavy willow growth. High grad. Plunge pools < 1 ft. deep - maybe too steep for fish.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated Metal)

Fish Passage Rating:

Length(ft): 176.1

Inlet Type: Flared Inlet

Outlet Type:

Corrugation Depth(in.): 1.0

Corrugation Width(in.): 3.0

Condition Rating(1-5):

Approach Angle:

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	5.9	5.8
Height(ft):	4.75	6.71
Apron Length(ft):
Water Depth(ft):	0.4	0.21
Rustline Height(ft):
Substrate Depth(ft):	0.0	0.0

Backwatered?:

Baffles Present: No

Embedded?: No

Outfall Height: 3.1

Outfall Type:

Constriction Ratio: 0.68

Culvert Gradient: 8.89%

Max Slope:

Max Slope Length:

Culvert Observations:

None of this type

Stream Measurements

Stream Substrates	Upstream	Downstream
Dominant:	Boulder	Boulder
Subdominant:	None	None

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water	13.0	11.10
Downstream ordinary high water	55.0	9.70
Downstream ordinary high water	88.0	8.00
Upstream ordinary high water	5.0	11.60
Upstream ordinary high water	42.0	7.90
Upstream ordinary high water	74.0	9.40

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
D/S Thalweg				82.29
D/S Thalweg		0.00	88.0	75.65
D/S Water Surface Elev		0.00	88.0	76.08
D/S OHW Elev		0.00	88.0	76.79
D/S Thalweg		33.00	55.0	77.94
D/S Water Surface Elev		33.00	55.0	78.23
D/S OHW Elev		33.00	55.0	78.69
D/S Tailcrest or 1st Thalweg		75.00	13.0	82.31
D/S Water Surface Elev		75.00	13.0	83.06
OHW Left Bank		75.00	13.0	83.17
OHW Left Bank		83.00	5.0	83.54
OHW Left Bank		83.00	5.0	83.15
Max Pool Depth		83.00	5.0	82.62
Outlet Thalweg	1	88.00	0.0	83.42
Outlet Invert	1	88.00	0.0	86.04
Outlet Rustline Height	1	88.00	0.0	86.71
Outlet Culvert Top	1	88.00	0.0	92.75
Road Elev		176.00		133.72
Road Elev		176.00		134.58
Inlet Culvert Top	1	264.00	0.0	106.45
Inlet Thalweg	1	264.00	0.0	101.45
Inlet Culvert Invert	1	264.00	0.0	101.70
Inlet Rustline Height	1	264.00	0.0	102.20
U/S Thalweg	1	265.00	1.0	101.35
U/S OHW elevation	1	269.00	5.0	102.08
U/S Water Surface Elev	1	269.00	5.0	101.75
U/S Thalweg	1	269.00	5.0	85.79
U/S Thalweg	1	275.80	11.8	101.12
U/S Water Surface Elev		306.00	42.0	101.83
U/S Thalweg		306.00	42.0	101.47
U/S Headwater		306.00	42.0	102.41
U/S Headwater		338.00	74.0	102.68
U/S Thalweg		338.00	74.0	102.77
U/S Water Surface Elev		338.00	74.0	103.20

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 (A)		Trap Duration(h): 2.05

Gear Type: Minnow Trap (B)		Trap Duration(h): 2.1

Fish Observations

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: Downstream Minnow Trap (0) Upstream Minnow Trap (0)

Photos

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