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 ANC04-4A167

Observers: Dean Beers, Vic Stanculescu

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year: 1992


Comments: COHO ADULT SPAWNING PHASE AT INLET

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 113.1
Inlet Type: Mitered
Outlet Type:
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):18.5
Height(ft):12.0
Apron Length(ft):
Water Depth(ft): 0.7
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.07
Outfall Type:
Constriction Ratio: 0.89
Culvert Gradient: -0.09%
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 20.20
Upstream bank full 100.0 23.50
Upstream bank full 125.0 25.90
Upstream bank full 150.0 28.70
Upstream bed width 75.0 9.80
Upstream bed width 100.0 17.40
Upstream bed width 125.0 18.00
Upstream bed width 150.0 21.00
Upstream ordinary high water 75.0 18.50
Upstream ordinary high water 100.0 18.90
Upstream ordinary high water 125.0 20.20
Upstream ordinary high water 150.0 25.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 87.85
D/S Tailcrest or 1st Thalweg 88.03
Max Pool Depth 88.21
U/S Thalweg 1 88.75
OHW Left Bank 89.08
OHW Left Bank 89.68
Outlet Invert 1 0.00 0.0 88.45
Road Elev 56.50 105.91
Inlet Culvert Invert 1 113.00 0.0 88.35

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: Visual Observation, Ground (A)

Fish Observations

No fish observations occurred during this survey.

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