Fish Passage Site 20300950

Coordinates (dec. deg.): 60.59468°, -149.54755°
Legal Description: S006N002W24
Region: South Central
Road Name: Seward Highway

Datum: NAD83
Quad Name / ITM: Seward C-7
AWC Stream #:
Stream Name: Quartz Creek

Elevation:

Site Comments: None

Survey Date: Sep 12, 2001

Survey KPCS1-EK074

Observers: Cecil Rich, William Glick, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: right culvert has no flow due to aggradation. Channel has diverted all flow to left culvert. Island has formed above inlet.Cobble deposited covering endls of mitered cluvert.

Culvert Measurements

ID: 1 Structure Type: Open-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 94.0
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: Boulder
Outlet Substrate: Cobble
InletOutlet
Width(ft):11.9 11.9
Height(ft): 5.9
Apron Length(ft):
Water Depth(ft):2.25 1.33
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.04
Outfall Type:
Constriction Ratio: 0.95
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Sediment accumulation
ID: 2 Structure Type: Open-bottom arch (Strutural Metal Plate) Fish Passage Rating:
 
Length(ft): 91.0
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: Boulder
Outlet Substrate: Cobble
InletOutlet
Width(ft):11.9 11.9
Height(ft): 4.67
Apron Length(ft):
Water Depth(ft): 0.27
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.04
Outfall Type:
Constriction Ratio: 0.95
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Sediment accumulation

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderBoulder
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 19.0 35.10
Downstream ordinary high water 50.0 22.80
Downstream ordinary high water 100.0 20.00
Upstream ordinary high water 5.0 32.00
Upstream ordinary high water 50.0 16.00
Upstream ordinary high water 100.0 34.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev 0.00 100.0 84.77
D/S OHW Elev 0.00 100.0 83.58
D/S Thalweg 0.00 100.0 85.37
D/S Thalweg 50.00 50.0 84.44
D/S Water Surface Elev 50.00 50.0 85.96
D/S OHW Elev 50.00 50.0 86.52
D/S Tailcrest or 1st Thalweg 81.00 19.0 85.37
D/S Water Surface Elev 81.00 19.0 86.48
OHW Left Bank 81.00 19.0 87.04
OHW Left Bank 95.00 5.0 86.98
OHW Left Bank 95.00 5.0 86.60
Max Pool Depth 95.00 5.0 85.08
D/S Thalweg 95.00 5.0 85.08
Outlet Invert 1 100.00 0.0 85.29
Outlet Thalweg 1 100.00 0.0 85.29
Outlet Rustline Height 2 100.00 0.0 86.71
Outlet Rustline Height 1 100.00 0.0 86.27
Outlet Invert 2 100.00 0.0 86.29
Outlet Thalweg 2 100.00 0.0 86.29
Outlet Culvert Top 2 100.00 0.0 90.96
Outlet Culvert Top 1 100.00 0.0 91.19
Road Elev 146.00 94.85
Road Elev 146.00 96.21
Inlet Culvert Top 1 192.00 0.0 91.25
Inlet Culvert Top 2 192.00 0.0 91.48
Inlet Thalweg 2 192.00 0.0 88.87
Inlet Rustline Height 2 192.00 0.0 89.02
Inlet Rustline Height 1 192.00 0.0 88.27
Inlet Thalweg 1 192.00 0.0 85.90
U/S Thalweg 2 193.00 1.0 88.67
U/S Thalweg 1 193.00 1.0 87.06
U/S Thalweg 1 197.00 5.0 87.54
U/S Thalweg 2 197.00 5.0 88.25
U/S Water Surface Elev 1 197.00 5.0 88.50
U/S OHW elevation 1 197.00 5.0 89.37
U/S Water Surface Elev 2 197.00 5.0 89.44
U/S OHW elevation 2 197.00 5.0 89.69
U/S Thalweg 1 215.80 23.8 89.00
U/S Thalweg (R. thalw only goes to L culv.) 2 215.80 23.8 88.50
U/S Headwater (split channel - left channel) 242.00 50.0 91.15
U/S Thalweg (split channel -left channel) 242.00 50.0 89.77
U/S Water Surface Elev (split channel - left channel) 242.00 50.0 90.75
U/S Thalweg 292.00 100.0 91.83
U/S Water Surface Elev 292.00 100.0 92.83
U/S Headwater 292.00 100.0 93.37

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 1.15
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.3

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 28 Fish Measured: 14 Fork Lengths (mm) Min: 62 Max: 165 Mean: 114
Collected/Observed by Gear Type: Downstream Minnow Trap (14)  Upstream Minnow Trap (14)  

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov