Fish Passage Site 20103687

Coordinates (dec. deg.): 61.59012°, -145.22079°
Legal Description: C003S001E22
Region: South Central
Road Name: ATV Trail

Datum: NAD83
Quad Name / ITM: Valdez C-4
AWC Stream #:
Stream Name: Unnamed


Site Comments: Site 20100710 on the Richarson Highway is about 500 feet downstream.

Survey Date: Sep 18, 2017


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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

  1. Outfall height red
  2. Mechanical damage or joints parting
  3. Structural Problem
  4. Inlet perch

Comments: Site information submitted by the Copper River Watershed Project and USFWS. Creek flows into Little Tonsina. 2015 survey notes fish downstream. Coho and Kings below 20100710 and Dolly Varden below this site and the downstream culvert. Site has a Red Outfall. Site looks constricted and gradient may also be an issue.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate: None
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:

Comments: Culvert outlet is breaking off, outfall visibly over 4 inches. It also looks like the site is constricted and may have a red gradient.

  Culvert Observations:
  1. Outfall height red
  2. Inlet perch
  3. Structural Problem
  4. Mechanical damage or joints parting

Stream Measurements

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

No stream width data available.


No elevation data available.

Fish Sampling Efforts

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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