Fish Passage Site 20400595

Coordinates (dec. deg.): 61.50582°, -148.96956°
Legal Description: S016N003E05
Region: South Central
Road Name: Knik River Road

Datum: NAD83
Quad Name / ITM: Anchorage C-6
AWC Stream #: 247-50-10200-2078
Stream Name: Barbell Lake Outlet


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.

Survey UPDATE-0595

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

Overall Fish Passage Rating: Black


Step Pools:
Construction Year:

Comments: Culvert replaced. No sediment at inlet about 2 to 3 inches of silt had accumulated at outlet. Juvenile salmonids observed upstream and downstream of crossing.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated steel) Fish Passage Rating: Black
Length(ft): 70.2
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: Silt/Clay
Width(ft):8.0 8.0
Height(ft):5.5 5.2
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft): 0.3
Baffles Present:
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:

Comments: Water surface through culvert looks very flat, site may be backwatered.

Stream Measurements

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

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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