Fish Passage Site 20501471

Coordinates (dec. deg.): 62.13629°, -149.94032°
Legal Description: S024N004W25
Region: South Central
Road Name: Montana Creek Road

Datum: WGS84
Quad Name / ITM: Talkeetna Mts A-6
AWC Stream #:
Stream Name: Buddy Creek


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.


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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2013

Site Observations:

  1. None of this type

Comments: Replaced with a stream simulation culvert in June 2013. Culvert resurveyed Oct 22, 2015. Stream gradient taken from site plans. Upstream gradient 0.67%, downstream gradient 1.11%.

Culvert Measurements

ID: 1 Structure Type: Box culvert (Structural aluminum plate) Fish Passage Rating: Green
Length(ft): 36.2
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 9.0
Condition Rating(1-5): 5
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
Width(ft):18.0 18.0
Height(ft):5.4 5.6
Apron Length(ft):
Water Depth(ft): 1.21
Rustline Height(ft):
Substrate Depth(ft):2.2 2.0
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 2.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: -0.36%
Max Slope:
Max Slope Length:

Comments: Substate depth calculated from site plans and measured height of opening.

  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Stream Slope(deg.):0.67
Stream Flow Stage:Medium

No stream width data available.


Locator ID Culvert
Distance (ft)1
Distance From
Crossing (ft)2
Elevation (ft)
Road Elev 103.03
Outlet Invert (on substrate) 0.00 92.43
D/S Water Surface Elev 0.00 93.64
Outlet Culvert Top (On collar) 0.00 98.35
Inlet Culvert Top (on collar) 36.20 98.22
Inlet Culvert Invert (On substrate) 36.20 92.81
U/S Water Surface Elev 36.20 93.74


  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