Fish Passage Site 20501496

Coordinates (dec. deg.): 62.53283°, -150.48818°
Legal Description: S028N007W12
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna C-1
AWC Stream #:
Stream Name: Long 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 MSB23-MS082

Project Supervisor: Michael Mazzacavallo, Alaska Department of Fish and Game — Anchorage, AK
Observers: Michael Mazzacavallo, Kat Leavitt, Beth Evers

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Mechanical damage or joints parting
  2. Material inadequate for designed use
  3. Road Fill (pushed off road by grader)

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 39.15
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 5
Approach Angle: 29.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.3 1.2
Height(ft):0.95 1.1
Apron Length(ft):
Water Depth(ft):0.0 0.03
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 1.5
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.95
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Outlet culvert#1 has flow that goes into a marsh. The culvert is extremely rusted and damaged. Culverts do not have corregations. Outlet is essentially a waterfall.
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Material inadequate for designed use
  3. Road Fill (pushed off road by grader)
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 39.36
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 5
Approach Angle: 29.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.3 1.0
Height(ft):0.9 1.1
Apron Length(ft):
Water Depth(ft):0.0 0.02
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 1.45
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.95
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert 2 has flow that goes into a marsh. The culvert is extremely rusted and damaged. Culvert does not have corregations. Outlet culvert are essentailly water falls.
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Material inadequate for designed use
  3. Road Fill (pushed off road by grader)
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 38.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 5
Approach Angle: 29.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.3 1.85
Height(ft):0.6 0.8
Apron Length(ft):
Water Depth(ft):0.0 0.0
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.95
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert #3 is stacked on top of the two other culverts with no flow. Culvert #3 is smashed, but can see through.
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Material inadequate for designed use
  3. Road Fill (pushed off road by grader)

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:GravelGravel
Stream Slope(deg.):2.72
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream bed width 62.0 43.00
Upstream bed width 29.0 4.10
Upstream bed width 47.0 1.30
Upstream bed width 80.0 1.40

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Inlet Culvert Invert 1 104.00 90.76
Inlet Culvert Invert 2 104.00 90.82
U/S Water Surface Elev (Culvert #1 water surface) 1 104.00 90.83
U/S Water Surface Elev (Culvert #2 water surface) 2 104.00 90.87
Inlet Culvert Invert 3 104.00 91.61
Inlet Culvert Top 1 104.00 91.65
Inlet Culvert Top 2 104.00 91.67
Inlet Culvert Top 3 104.00 92.65
Outlet Culvert Top 1 143.15 91.35
Outlet Invert 1 143.15 90.17
D/S Water Surface Elev (Culvert#1 water surface) 1 143.15 90.20
Outlet Invert 2 143.36 90.13
D/S Water Surface Elev (Culvert #2 water surface) 2 143.36 90.15
Outlet Culvert Top 2 143.36 91.21
Outlet Invert 3 143.36 91.28
Outlet Culvert Top 3 146.36 92.06
Max Pool Depth 146.36 88.01
Outlet Pool Water Elev 146.36 88.70
D/S Thalweg 185.36 88.11
D/S Water Surface Elev 185.36 88.24
D/S Thalweg 222.36 87.47
D/S Water Surface Elev 222.36 87.56

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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