Fish Passage Site 20300232

Coordinates (dec. deg.): 60.93978°, -149.23545°
Legal Description: S010N001E23
Region: South Central
Road Name: Alaska Railroad

Datum: NAD83
Quad Name / ITM: Seward D-6
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: UN-NAMED WATERSHED, RR TRACK CULVERT.

Survey Date: Oct 20, 2004

Survey ANC04-4A232

Observers: Dean Beers, Vic Stanculescu

Overall Fish Passage Rating: Red

Tidal: Yes
Backwatered: No

Step Pools:
Construction Year:


Comments: UN-NAMED WATERSHED, RR TRACK CULVERT, JUV COHO NETTED BELOW CULVERT.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 30.4
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):1.5
Height(ft):1.5
Apron Length(ft):
Water Depth(ft): 0.2
Rustline Height(ft):0.6
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.12
Outfall Type:
Constriction Ratio: 0.67
Culvert Gradient: 9.01%
Max Slope:
Max Slope Length:

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream bank full 75.0 7.60
Upstream bank full 100.0 6.90
Upstream bank full 125.0 7.10
Upstream bank full 150.0 6.20
Upstream bed width 75.0 1.70
Upstream bed width 100.0 1.50
Upstream bed width 125.0 1.20
Upstream bed width 150.0 1.50
Upstream ordinary high water 75.0 2.40
Upstream ordinary high water 100.0 2.30
Upstream ordinary high water 125.0 2.60
Upstream ordinary high water 150.0 1.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 98.72
Max Pool Depth 98.75
D/S Tailcrest or 1st Thalweg 99.54
OHW Left Bank 100.01
U/S Thalweg 1 102.59
OHW Left Bank 102.84
Outlet Invert 1 0.00 0.0 99.93
Road Elev 15.00 106.25
Inlet Culvert Invert 1 30.00 0.0 102.67

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Dip Net (A)

Fish Observations

No fish observations occurred during this survey.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov