Fish Passage Site 20100505

Coordinates (dec. deg.): 60.43636°, -145.19576°
Legal Description: C016S001E34
Region: South Central
Road Name: Copper River Highway

Datum: NAD83
Quad Name / ITM: Cordova B-4
AWC Stream #:
Stream Name: Wrong Way Creek

Elevation:

Site Comments: Near milepost 23

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 CRWP17-Cop39

Observers: Kirsti Jurica, Hoots Witsoe

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is too short
  2. Beaver Activity
  3. Shallow fill; inadequate roadfill volume above culvert
  4. Structural Problem
  5. Mechanical damage or joints parting
  6. Outfall height red

Comments: Culvert assessment performed and submitted by the Copper River Watershed Project. Large wetland complex upstream. Upstream slough connects with Alaganik River as well as downstream channel. Numerous juvenile Coho salmon caught upstream. Beaver dams upstream and downstream from culvert.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 45.5
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.5
Corrugation Width(in.): 6.0
Condition Rating(1-5): 2
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):8.9 9.0
Height(ft):7.88 8.29
Apron Length(ft):
Water Depth(ft): 0.86
Rustline Height(ft):2.2
Substrate Depth(ft):0.5 0.2
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.96
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.8
Culvert Gradient: -0.55%
Max Slope:
Max Slope Length:
 

Comments: Culvert is two separtate pieces set together but not connect with a small seam in the middle. Pipe is 100% rusted, rust line hieght taken from line of heavy pitting. Culvert is set at adverse gradient. Water surface gradient through culvert is 0.13%, substrate gradient is 0.35%. Cobble/boulder step pools below culvert.
  Culvert Observations:
  1. Beaver Activity
  2. Structural Problem
  3. Mechanical damage or joints parting
  4. Culvert is too short
  5. Shallow fill; inadequate roadfill volume above culvert
  6. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicSand
Subdominant:Silt/ClayOrganic
Stream Slope(deg.):
Stream Flow Stage:Medium

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 102.17
D/S Water Surface Elev (Water surface downstream of end of outlet cascade) 0.00 91.86
D/S Thalweg 0.00 89.51
D/S Tailcrest or 1st Thalweg 14.00 91.76
D/S Water Surface Elev 14.00 92.66
Max Pool Depth 17.00 91.95
Outlet Pool Water Elev 17.00 92.82
Outlet Invert (on substrate) 22.00 91.96
D/S Water Surface Elev 22.00 92.82
Outlet Culvert Top 22.00 100.25
Inlet Culvert Top 67.00 100.00
Inlet Culvert Invert (on substrate) 67.00 92.12
U/S Water Surface Elev 67.00 92.88
U/S Thalweg 71.00 92.96
U/S Water Surface Elev 71.00 93.25
U/S Water Surface Elev 77.00 93.88
U/S Thalweg 77.00 93.23
U/S Thalweg (below beaver dam) 109.00 94.32
U/S Water Surface Elev 109.00 94.95
U/S Grade Ctrl (Thalweg) (upstream beaver dam) 117.00 97.78
U/S Water Surface Elev 117.00 97.88
U/S Water Surface Elev 125.00 97.94
U/S Thalweg (upstream beaver pond) 125.00 94.22

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): 20.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 20.0
 
Gear Type: Minnow Trap (C) Trap Duration(h): 20.0
 
Gear Type: Minnow Trap (D) Trap Duration(h): 20.0

Fish Observations

Species: stickleback-unspecified Life History: Unknown
Total Fish Observed: 42 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Not Recorded Minnow Trap (8)  Not Recorded Minnow Trap (10)  Not Recorded Minnow Trap (6)  Not Recorded Minnow Trap (18)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 70 Max: 110 Mean: 85
Collected/Observed by Gear Type: Not Recorded Minnow Trap (3)  

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