Fish Passage Site 20300466

Coordinates (dec. deg.): 60.96211°, -149.13762°
Legal Description: S010N002E17
Region: South Central
Road Name: Alyeska Highway

Datum: NAD83
Quad Name / ITM: Seward D-6
AWC Stream #: 247-60-10250-2007
Stream Name: California Creek

Elevation:

Site Comments: In 1992 DOT replaced the existing undersized culvert with a larger culvert that provided fish passage and could also handle flood flows. Boulders were placed in the stream upstream of the culvert to provide pool habitat for fish. The ste was hydroseeded after construction and willow budles were planted on the up and downstream banks in May 1993.

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 CRB02-Al328

Observers: Dean Beers, James Laurence, James Laurence

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: None

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 101.0
Inlet Type:
Outlet Type:
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):18.5
Height(ft):12.0
Apron Length(ft):
Water Depth(ft): 0.5
Rustline Height(ft):0.8
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.91
Culvert Gradient: 1.68%
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 ordinary high water 50.0 18.00
Upstream ordinary high water 75.0 19.00
Upstream ordinary high water 100.0 24.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Thalweg 1 0.00 0.0 79.12
Outlet Invert 1 0.00 0.0 89.19
Inlet Culvert Invert 1 101.00 0.0 90.89
Inlet Thalweg 1 101.00 0.0 79.09

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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