Fish Passage Site 20501404

Coordinates (dec. deg.): 62.23803°, -150.43974°
Legal Description: S025N006W20
Region: South Central
Road Name: Oil Well Road

Datum: NAD83
Quad Name / ITM: Talkeetna A-1
AWC Stream #:
Stream Name: Moose Creek tributary



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.


Project Supervisor: Gillian O'Doherty, ADFG
Observers: Gillian O'Doherty, Mark Eisenman

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2014

Site Observations:

  1. None of this type

Comments: Replaced in 2014, Site Resurveyed 10/21/15. Site is almost backwatered. Fish (Coho) caught upstream and downstream of culvert. 5 Coho caught upstream, 2 downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Green
Length(ft): 80.6
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: Sand
Outlet Substrate: Sand
Width(ft):8.9 8.6
Height(ft):5.7 5.5
Apron Length(ft):
Water Depth(ft): 1.71
Rustline Height(ft):
Substrate Depth(ft):3.3 3.5
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 3.3
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.12
Culvert Gradient: 1.05%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)
Width (ft)
Upstream ordinary high water 7.90
Upstream ordinary high water 7.60
Upstream ordinary high water 8.40


Locator ID Culvert
Distance (ft)1
Distance From
Crossing (ft)2
Elevation (ft)
Road Elev 105.94
Outlet Culvert Top 0.00 99.47
Outlet Invert (On substrate) 0.00 93.82
D/S Water Surface Elev 0.00 95.53
Inlet Culvert Top 80.60 100.32
Inlet Culvert Invert (On substrate) 80.60 94.68
U/S Water Surface Elev 80.60 95.55


  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): 0.6
Gear Type: Minnow Trap (B) Trap Duration(h): 0.6

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 7 Fish Measured: 7 Fork Lengths (mm) Min: 109 Max: 125 Mean: 113
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (5)  
Species: adult threespine stickleback Life History: Unknown
Total Fish Observed: 3 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Minnow Trap (3)  

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