Fish Passage Site 40501723

Coordinates (dec. deg.): 65.51295°, -148.58772°
Legal Description: F008N005W21
Region: Interior
Road Name: Livengood Road

Datum: WGS84
Quad Name / ITM: Livengood C-4
AWC Stream #:
Stream Name:

Elevation:

Site Comments: None

Survey Date: Jul 05, 2010

Survey EDS10-LIV03

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert gradient red
  3. Damage associated with ice problems
  4. Culvert gradient gray
  5. Beaver Activity

Comments: C2 is clogged by ice, but also by a beaver dam. C1 takes the majority of flow. Fish were seen swimming upstream. No stream widths were taken because the water was too deep.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 58.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 2
Approach Angle: 30.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.9 5.0
Height(ft):5.0 5.1
Apron Length(ft):
Water Depth(ft): 0.31
Rustline Height(ft):2.9
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.43
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient: 1.24%
Max Slope:
Max Slope Length:
 

Comments: No constriction ration was calculated because the stream was too deep to obtain widths.

  Culvert Observations:
  1. Outfall height red
  2. Damage associated with ice problems
  3. Culvert gradient gray
ID: 2 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 58.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 2
Approach Angle: 30.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.0 4.9
Height(ft):5.1 5.3
Apron Length(ft):
Water Depth(ft): 0.21
Rustline Height(ft):1.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.92
Outfall Type: Free Fall on To Rip Rap
Constriction Ratio:
Culvert Gradient: 3.20%
Max Slope:
Max Slope Length:
 

Comments: The constriction ration could not be calclulated because there were no stream widths taken.

  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red
  3. Damage associated with ice problems
  4. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:OrganicSilt/Clay
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)
D/S Tailcrest or 1st Thalweg (Thalweg) 0.00 92.64
D/S Water Surface Elev (Water Surface) 0.00 93.67
Outlet Pool Water Elev 38.00 95.17
D/S Water Surface Elev (Water Surface) 1 46.00 95.17
Outlet Invert (Bottom of Pipe) 2 46.00 94.45
D/S Water Surface Elev (Water Surface) 2 46.00 94.66
Outlet Invert (Bottom of Pipe) 1 46.00 94.86
U/S Water Surface Elev (Water Surface) 1 104.00 95.58
Inlet Culvert Invert (Bottom of Pipe) 1 104.00 106.60
U/S Water Surface Elev (Water Surface) 2 104.30 97.47
Inlet Culvert Invert (Bottom of Pipe) 2 104.30 96.32
U/S Headwater (Water Surface) 107.00 97.47
U/S Thalweg (Substrate) 107.00 94.96

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): 1.33
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.33
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were caught.
 
Gear Type: Visual Observation, Ground (C)
Comments: Fish were seen swimming upstream during survey

Fish Observations

Species: no fish collected or observed Life History: Not Applicable
Total Fish Observed: 0 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (0)  Upstream Minnow Trap (0)  
 
Species: general fish observation, no species information Life History: Not Recorded
Total Fish Observed: 2 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Visual Observation, Ground (2)  

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