Fish Passage Site 20200938
Coordinates (dec. deg.): 60.20435°, -149.37204°
Legal Description: S001N001W01
Region: South Central
Road Name: Seward Highway
Datum: NAD83
Quad Name / ITM: Seward A-7
AWC Stream #: 231-30-10080-2010-3065
Stream Name: Grouse Creek
Site Comments: Drains into Grouse Lk.
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.
Observers: Cecil Rich, William Glick, James Maple
Overall Fish Passage Rating: Gray
Tidal: No
Backwatered: No
Step Pools:
Construction Year:
Comments: Recent construction activities have altered flow patterns and levels. Hard to find OHW indicators. No invert meas at inlet due to subst aggr. Could not identify tailcrest due to high water in Grouse Lk inundating out pool, need to return at low water.
Culvert Measurements
| ID: 1 |
Structure Type: Closed-bottom arch (Strutural Metal Plate) |
Fish Passage Rating: |
| |
| Length(ft): 117.0 |
| 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: Gravel |
| Outlet Substrate: Gravel |
|
| Inlet | Outlet |
|---|
| Width(ft): | 9.3 | 9.3 |
| Height(ft): | | 6.42 |
| Apron Length(ft): | | |
| Water Depth(ft): | 2.33 | 2.88 |
| Rustline Height(ft): | | |
| Substrate Depth(ft): | | 0.42 |
|
| Backwatered?: |
| Baffles Present: No |
| Embedded?: No |
| Outfall Height: |
| Outfall Type: |
Constriction Ratio: 0.97 |
| Culvert Gradient: |
| Max Slope: |
| Max Slope Length: |
|
| |
Culvert Observations:
- None of this type
|
| ID: 2 |
Structure Type: Closed-bottom arch (Strutural Metal Plate) |
Fish Passage Rating: |
| |
| Length(ft): 117.0 |
| 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: Gravel |
| Outlet Substrate: Gravel |
|
| Inlet | Outlet |
|---|
| Width(ft): | 9.2 | 9.2 |
| Height(ft): | | 6.32 |
| Apron Length(ft): | | |
| Water Depth(ft): | 2.13 | 2.77 |
| Rustline Height(ft): | | |
| Substrate Depth(ft): | | 0.21 |
|
| Backwatered?: |
| Baffles Present: No |
| Embedded?: No |
| Outfall Height: |
| Outfall Type: |
Constriction Ratio: 0.97 |
| Culvert Gradient: |
| Max Slope: |
| Max Slope Length: |
|
| |
Culvert Observations:
- None of this type
|
| ID: 3 |
Structure Type: Closed-bottom arch (Strutural Metal Plate) |
Fish Passage Rating: |
| |
| Length(ft): 116.0 |
| 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: Gravel |
| Outlet Substrate: Gravel |
|
| Inlet | Outlet |
|---|
| Width(ft): | 6.0 | 6.13 |
| Height(ft): | | |
| Apron Length(ft): | | |
| Water Depth(ft): | 2.04 | 2.13 |
| Rustline Height(ft): | | |
| Substrate Depth(ft): | | |
|
| Backwatered?: |
| Baffles Present: No |
| Embedded?: No |
| Outfall Height: |
| Outfall Type: |
Constriction Ratio: 0.97 |
| Culvert Gradient: |
| Max Slope: |
| Max Slope Length: |
|
| |
Culvert Observations:
- None of this type
|
| ID: 4 |
Structure Type: Closed-bottom arch (Strutural Metal Plate) |
Fish Passage Rating: |
| |
| Length(ft): 116.0 |
| 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: Gravel |
| Outlet Substrate: Gravel |
|
| Inlet | Outlet |
|---|
| Width(ft): | 8.0 | 6.3 |
| Height(ft): | | |
| Apron Length(ft): | | |
| Water Depth(ft): | 1.92 | 3.83 |
| Rustline Height(ft): | | |
| Substrate Depth(ft): | | |
|
| Backwatered?: |
| Baffles Present: No |
| Embedded?: No |
| Outfall Height: |
| Outfall Type: |
Constriction Ratio: 0.97 |
| Culvert Gradient: |
| Max Slope: |
| Max Slope Length: |
|
| |
Culvert Observations:
- None of this type
|
Stream Measurements
| Stream Substrates | Upstream | Downstream |
|---|
| Dominant: | Boulder | Gravel |
| Subdominant: | Gravel | Sand |
|
| Stream Slope(deg.): | |
|---|
| Stream Flow Stage: | |
|---|
|
| Stream Width Type |
Distance From
Crossing (ft) |
Stream
Width (ft) |
| Upstream ordinary high water |
70.0 |
36.00 |
| Upstream ordinary high water |
140.0 |
31.00 |
Elevations
| Locator ID |
Culvert
Number |
River
Distance (ft)1 |
Distance From
Crossing (ft)2 |
Relative
Elevation (ft) |
| Max Pool Depth |
|
0.00 |
5.0 |
83.02 |
| OHW Left Bank |
|
0.00 |
5.0 |
85.65 |
| OHW Left Bank |
|
0.00 |
5.0 |
85.87 |
| Outlet Culvert Top |
3 |
5.00 |
0.0 |
86.92 |
| Outlet Culvert Top |
4 |
5.00 |
0.0 |
86.94 |
| Outlet Culvert Top |
1 |
5.00 |
0.0 |
89.29 |
| Outlet Culvert Top |
2 |
5.00 |
0.0 |
89.42 |
| Outlet Invert |
1 |
5.00 |
0.0 |
92.90 |
| Outlet Invert |
2 |
5.00 |
0.0 |
93.13 |
| Outlet Thalweg |
4 |
5.00 |
0.0 |
83.19 |
| Outlet Thalweg |
1 |
5.00 |
0.0 |
83.29 |
| Outlet Thalweg |
2 |
5.00 |
0.0 |
83.31 |
| Outlet Thalweg |
3 |
5.00 |
0.0 |
83.75 |
| Road Elev |
|
63.00 |
|
105.80 |
| Road Elev |
|
63.00 |
|
107.30 |
| Inlet Culvert Top |
4 |
121.00 |
0.0 |
87.29 |
| Inlet Culvert Top |
3 |
121.00 |
0.0 |
87.31 |
| Inlet Culvert Top |
2 |
121.00 |
0.0 |
88.54 |
| Inlet Culvert Top |
1 |
121.00 |
0.0 |
88.97 |
| Inlet Thalweg |
2 |
121.00 |
0.0 |
84.04 |
| Inlet Thalweg |
4 |
121.00 |
0.0 |
84.04 |
| Inlet Thalweg |
1 |
121.00 |
0.0 |
83.60 |
| Inlet Thalweg |
3 |
121.00 |
0.0 |
83.70 |
| U/S Thalweg |
1 |
122.00 |
1.0 |
83.66 |
| U/S Thalweg |
4 |
122.00 |
1.0 |
84.20 |
| U/S Thalweg |
3 |
122.00 |
1.0 |
84.27 |
| U/S Thalweg |
2 |
122.00 |
1.0 |
83.89 |
| U/S Thalweg |
4 |
126.00 |
5.0 |
84.83 |
| U/S Water Surface Elev |
1 |
126.00 |
5.0 |
85.87 |
| U/S Thalweg |
1 |
126.00 |
5.0 |
83.77 |
| U/S Thalweg |
2 |
126.00 |
5.0 |
84.12 |
| U/S Thalweg |
3 |
126.00 |
5.0 |
84.97 |
| U/S OHW elevation |
1 |
126.00 |
5.0 |
85.10 |
| U/S Thalweg |
3 |
133.14 |
12.14 |
84.85 |
| U/S Thalweg |
4 |
135.30 |
14.3 |
84.68 |
| U/S Thalweg |
2 |
139.40 |
18.4 |
84.12 |
| U/S Thalweg |
1 |
139.60 |
18.6 |
84.35 |
| U/S Water Surface Elev |
|
191.00 |
70.0 |
85.93 |
| U/S Thalweg |
|
191.00 |
70.0 |
84.31 |
| U/S Headwater |
|
191.00 |
70.0 |
85.22 |
| U/S Water Surface Elev |
|
261.00 |
140.0 |
83.72 |
| U/S Thalweg |
|
261.00 |
140.0 |
82.87 |
| U/S Headwater |
|
261.00 |
140.0 |
82.95 |
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 (B) |
Trap Duration(h): 2.0 |
| |
| Gear Type: Visual Observation, Ground (C) |
|
| |
| Gear Type: Visual Observation, Ground (D) |
|
Fish Observations
| Species: juvenile Dolly Varden |
Life History: Resident |
| Total Fish Observed: 2 |
Fish Measured: 1 |
Fork Lengths (mm) Min: 66 Max: 66 Mean: 66 |
| Collected/Observed by Gear Type: Downstream Minnow Trap (2) |
| |
| Species: adult stickleback-unspecified |
Life History: Resident |
| Total Fish Observed: 1 |
Fish Measured: |
Fork Lengths (mm) Min: Max: Mean: |
| Collected/Observed by Gear Type: Downstream Minnow Trap (1) |
| |
| Species: adult pink salmon |
Life History: Anadromous |
| Total Fish Observed: |
Fish Measured: |
Fork Lengths (mm) Min: Max: Mean: |
| Collected/Observed by Gear Type: Downstream Visual Observation, Ground () |
| Comments: more than one observed downstream,at least one observed downstream |
| |
| Species: adult sockeye salmon |
Life History: Anadromous |
| Total Fish Observed: |
Fish Measured: |
Fork Lengths (mm) Min: Max: Mean: |
| Collected/Observed by Gear Type: Downstream Visual Observation, Ground () Upstream Visual Observation, Ground () |
| Comments: at least one observed upstream |
Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov
