Fish Passage Site 20303748

Coordinates (dec. deg.): 60.55973°, -151.26143°
Legal Description: S005N011W05
Region: South Central
Road Name: First Avenue

Datum: NAD83
Quad Name / ITM: Kenai C-4
AWC Stream #: 244-30-10010-2001-3004
Stream Name: Unnamed

Elevation:

Site Comments: Stream coming down from the Kenai Airport Resevoir for float planes. Downstream area has been used as dumping ground. There is a dry overflow culvert with an apron on the downstream side, but no inlet was found.

Survey Date: Jul 12, 2017

Survey KEN17-FA01

Observers: Maggie Schaffer, Elise Idle

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height gray

Comments: Culvert information and assessment data collected and submitted by USFWS. Site was fully backwatered. Marshes on both upstream and downstream side. Upstream was 30 feet wide and approximately 100 feet long. Pooled area began approximately 10 feet downstream. A pipeline was running through the culvert. The site was 3/4 of a mile from a reservoir for float planes at the Kenai Airport. The downstream area was at a bottom of a gulch with lots of trash that had been thrown down into it. There was no clearly defined upstream, it was a shallow marsh completely filled with horsetail. There is a dry overflow culvert with an apron on the downstream side, but no inlet was found. No long profile done.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 150.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: Organic
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft): 0.4
Rustline Height(ft):1.1
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.2
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Possible natural gas pipeline running downstream of the culvert. There was a dry overflow culvert with an apron on the downstream side, no inlet was found.
  Culvert Observations:
  1. Outfall height gray
ID: 2 Structure Type:N/A Fish Passage Rating: Black
 
Length(ft):
Inlet Type:
Outlet Type: Flared Inlet
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):
Height(ft):
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present:
Embedded?:
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):
Stream Flow Stage:Wet, No Defined Channel
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream bed width 10.0 30.00

Elevations

No elevation data available.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 1.15
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 75 Max: 75 Mean: 75
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  

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