Fish Passage Site 20502063

Coordinates (dec. deg.): 63.20592°, -147.39293°
Legal Description: F020S002E05
Region: South Central
Road Name: Valdez Mining District Road

Datum: NAD83
Quad Name / ITM: Healy A-1
AWC Stream #:
Stream Name:

Elevation:

Site Comments: None

Survey Date: Jul 07, 2011

Survey MSB11-PSVMD07

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Constriction ratio red
  3. Structural Problem
  4. Mechanical damage or joints parting

Comments: Upst is a very steep mountain runoff drainage. Inlet is badly crushed with a 2' fall into the pipe and outfall height consisting of a cascade over rocks to an outlet pool 2.4' below.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 86.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 1
Approach Angle: 10.0
Sedimentation At Inlet: Yes
Inlet Substrate: Sand
Outlet Substrate: None
InletOutlet
Width(ft):1.0 2.8
Height(ft):1.7 3.0
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.25
Rustline Height(ft):0.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 2.4
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.23
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Outfall height red
  2. Constriction ratio red
  3. Structural Problem
  4. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:SandGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 25.0 3.40
Downstream ordinary high water 60.0 5.00
Downstream ordinary high water 100.0 4.60

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