Fish Passage Site 20502121

Coordinates (dec. deg.): 62.69556°, -149.83534°
Legal Description: S030N003W16
Region: South Central
Road Name: Alaska Railroad

Datum: NAD83
Quad Name / ITM: Talkeetna Mts C-6
AWC Stream #:
Stream Name:

Elevation:

Site Comments: Culvert on RR at MP 256.85

Survey Date: Jun 21, 2011

Survey MSB11-PSARR33

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: John Greuey, Abraham Gioffre

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Beaver Activity
  2. Woody Debris
  3. Inlet perch

Comments: Culvert was a 3' circular CMP with the inlet near completely blocked with a debris dam cutting off nearly all flow through the pipe. The outlet was at grade into a pooled slough area which flowed into a lowland marsh.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 50.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: Gravel
InletOutlet
Width(ft):3.0 3.0
Height(ft):0.5 3.0
Apron Length(ft):0.0 0.0
Water Depth(ft): 1.0
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: All dimensions were visually estimated not measured.
  Culvert Observations:
  1. Beaver Activity
  2. Woody Debris
  3. Inlet perch

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:OrganicSand
Stream Slope(deg.):
Stream Flow Stage:Low

No stream width data available.

Elevations

No elevation data available.

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