Fish Passage Improvement site 20300980

Fish Passage Site 20300980

Coordinates (dec. deg.): 60.35517°, -151.26484°
Legal Description: S003N011W18
Region: South Central
Road Name: Kalifornsky Beach Road

Datum: NAD83
Quad Name / ITM: Kenai B-4
AWC Stream #: 244-30-10050-2015
Stream Name: Coal 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 KPCS1-NK015

site photos

Observers: Cecil Rich, Tracy Smith, Michael Lund

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Comments: Short headwall with erosion behind. Perched at outlet - 1 foot. Large outlet scour hole > 8 feet deep.

Culvert Measurements

ID: 1

Structure Type: Closed-bottom arch (Strutural Metal Plate)

Fish Passage Rating:

Length(ft): 203.0

Inlet Type: Mitered

Outlet Type:

Corrugation Depth(in.): 2.0

Corrugation Width(in.): 6.0

Condition Rating(1-5):

Approach Angle:

Sedimentation At Inlet:

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	8.7	9.0
Height(ft):	9.38	9.54
Apron Length(ft):
Water Depth(ft):	0.73	0.63
Rustline Height(ft):
Substrate Depth(ft):	0.0	0.0

Backwatered?:

Baffles Present: No

Embedded?: No

Outfall Height: 1.54

Outfall Type:

Constriction Ratio: 0.86

Culvert Gradient: 1.38%

Max Slope:

Max Slope Length:

Culvert Observations:

None of this type

Stream Measurements

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

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Downstream ordinary high water	41.9	32.00
Downstream ordinary high water	102.0	10.50
Downstream ordinary high water	147.0	14.00
Upstream ordinary high water	5.0	14.20
Upstream ordinary high water	45.0	10.40
Upstream ordinary high water	82.0	9.90

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
D/S Thalweg				79.06
D/S Thalweg		0.00	147.0	84.25
D/S Water Surface Elev		0.00	147.0	84.75
D/S OHW Elev		0.00	147.0	85.60
D/S OHW Elev		45.00	102.0	85.71
D/S Thalweg		45.00	102.0	84.50
D/S Water Surface Elev		45.00	102.0	84.98
D/S Water Surface Elev		105.00	42.0	85.06
OHW Left Bank		105.00	42.0	85.24
D/S Tailcrest or 1st Thalweg		105.00	42.0	84.17
Max Pool Depth		142.00	5.0	81.65
OHW Left Bank		142.00	5.0	84.90
OHW Left Bank		142.00	5.0	85.73
Outlet Invert	1	147.00	0.0	85.81
Outlet Rustline Height	1	147.00	0.0	87.71
Outlet Thalweg	1	147.00	0.0	81.21
Outlet Culvert Top	1	147.00	0.0	95.35
Road Elev		248.50		130.88
Road Elev		248.50		130.96
Inlet Culvert Top	1	350.00	0.0	98.00
Inlet Rustline Height	1	350.00	0.0	89.39
Inlet Culvert Invert	1	350.00	0.0	88.62
Inlet Thalweg	1	350.00	0.0	88.62
U/S Thalweg	1	351.00	1.0	88.56
U/S Water Surface Elev	1	355.00	5.0	89.48
U/S OHW elevation	1	355.00	5.0	90.41
U/S Thalweg	1	355.00	5.0	87.71
U/S Thalweg	1	368.00	18.0	89.04
U/S Thalweg		395.00	45.0	89.29
U/S Headwater		395.00	45.0	90.52
U/S Water Surface Elev		395.00	45.0	89.75
U/S Thalweg		432.00	82.0	89.89
U/S Water Surface Elev		432.00	82.0	90.27
U/S Headwater		432.00	82.0	90.96

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): 1.45

Fish Observations

Species: juvenile Dolly Varden		Life History: Resident
Total Fish Observed: 12	Fish Measured: 6	Fork Lengths (mm) Min: 93 Max: 118 Mean: 109
Collected/Observed by Gear Type: Downstream Minnow Trap (6) Upstream Minnow Trap (6)

Species: adult stickleback-unspecified		Life History: Resident
Total Fish Observed: 4	Fish Measured:	Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (4)

Species: juvenile Chinook salmon		Life History: Anadromous
Total Fish Observed: 8	Fish Measured: 4	Fork Lengths (mm) Min: 75 Max: 85 Mean: 80
Collected/Observed by Gear Type: Downstream Minnow Trap (8)

Species: juvenile coho salmon		Life History: Anadromous
Total Fish Observed: 51	Fish Measured: 20	Fork Lengths (mm) Min: 47 Max: 86 Mean: 70
Collected/Observed by Gear Type: Downstream Minnow Trap (28) Upstream Minnow Trap (23)

Species: juvenile rainbow trout		Life History: Resident
Total Fish Observed: 7	Fish Measured: 3	Fork Lengths (mm) Min: 75 Max: 132 Mean: 104
Collected/Observed by Gear Type: Downstream Minnow Trap (3) Upstream Minnow Trap (4)

Species: juvenile/adult sculpin-unspecified		Life History: Resident
Total Fish Observed: 2	Fish Measured: 1	Fork Lengths (mm) Min: 98 Max: 98 Mean: 98
Collected/Observed by Gear Type: Downstream Minnow Trap (2)

Photos

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