Fish Passage Improvement site 20300973

Fish Passage Site 20300973

Coordinates (dec. deg.): 60.53746°, -151.08417°
Legal Description: S005N010W08
Region: South Central
Road Name: Kenai Spur Highway

Datum: NAD83
Quad Name / ITM: Kenai C-3
AWC Stream #: 244-30-10010-2031
Stream Name: Unnamed

Elevation:

Site Comments: Located on abandoned roadbed left when the Kenai SH was improved.

Survey Date: Jun 21, 2001

Survey KPCS1-NK008

site photos

Observers: Cecil Rich, Michael Lund, Tracy Smith

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Comments: This culvert was abandoned when the Kenai SH was improved and should be removed and old roadbed rehabbed in a channel. The culvert was full of slack water at the inlet, the outlet is about 15 ft from the inlet of site 9.

Culvert Measurements

ID: 1

Structure Type: Pipe-arch (Corrugated Metal)

Fish Passage Rating:

Length(ft): 82.0

Inlet Type: Projecting

Outlet Type:

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.63

Condition Rating(1-5):

Approach Angle:

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	3.7	3.7
Height(ft):	2.35	2.17
Apron Length(ft):
Water Depth(ft):	2.35	0.21
Rustline Height(ft):
Substrate Depth(ft):	0.0	0.0

Backwatered?:

Baffles Present: No

Embedded?: No

Outfall Height:

Outfall Type:

Constriction Ratio: 0.57

Culvert Gradient: -0.63%

Max Slope:

Max Slope Length:

Culvert Observations:

Mechanical damage or joints parting

Stream Measurements

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

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Upstream ordinary high water	5.0	12.10
Upstream ordinary high water	50.0	6.80
Upstream ordinary high water	74.0	6.20

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
D/S Thalweg		0.00	5.0	82.21
D/S Water Surface Elev		0.00	5.0	82.62
D/S OHW Elev		0.00	5.0	83.40
Outlet Rustline Height	1	5.00	0.0	84.71
Outlet Culvert Top	1	5.00	0.0	84.71
Outlet Invert	1	5.00	0.0	82.54
Outlet Thalweg	1	5.00	0.0	82.54
Inlet Culvert Invert	1	87.00	0.0	82.02
Inlet Thalweg	1	87.00	0.0	82.02
Inlet Rustline Height	1	87.00	0.0	84.37
Inlet Culvert Top	1	87.00	0.0	84.37
U/S Thalweg	1	88.00	1.0	82.37
U/S Thalweg	1	92.00	5.0	82.37
U/S Water Surface Elev	1	92.00	5.0	84.73
U/S OHW elevation	1	92.00	5.0	85.10
U/S Thalweg	1	94.40	7.4	82.37
U/S Headwater		137.00	50.0	84.96
U/S Thalweg		137.00	50.0	83.25
U/S Water Surface Elev		137.00	50.0	84.52
U/S Headwater		161.00	74.0	85.33
U/S Thalweg		161.00	74.0	84.12
U/S Water Surface Elev		161.00	74.0	84.29

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): 1.55

Gear Type: Minnow Trap (B)		Trap Duration(h): 1.5

Fish Observations

Species: juvenile Dolly Varden		Life History: Resident
Total Fish Observed: 8	Fish Measured: 4	Fork Lengths (mm) Min: 64 Max: 94 Mean: 76
Collected/Observed by Gear Type: Upstream Minnow Trap (8)

Species: adult stickleback-unspecified		Life History: Resident
Total Fish Observed: 1	Fish Measured:	Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Minnow Trap (1)

Species: juvenile coho salmon		Life History: Anadromous
Total Fish Observed: 30	Fish Measured: 12	Fork Lengths (mm) Min: 64 Max: 98 Mean: 75
Collected/Observed by Gear Type: Downstream Minnow Trap (4) Upstream Minnow Trap (26)

Species: juvenile/adult sculpin-unspecified		Life History: Resident
Total Fish Observed: 4	Fish Measured: 2	Fork Lengths (mm) Min: 74 Max: 90 Mean: 82
Collected/Observed by Gear Type: Downstream Minnow Trap (2) Upstream Minnow Trap (2)

Photos

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