Fish Passage Improvement site 20400033

Fish Passage Site 20400033

Coordinates (dec. deg.): 61.20162°, -149.86805°
Legal Description: S013N003W19
Region: South Central
Road Name: SEWARD HIGHWAY

Datum: NAD83
Quad Name / ITM: Anchorage A-8
AWC Stream #: 247-50-10050
Stream Name: Chester Creek

Elevation:

Site Comments: None

Survey Date: Aug 11, 2004

Survey ANC04-2A033

site photos

Observers: Dean Beers, Joe Miller

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Comments: A SIX INCH UNIDENTIFIED FISH WAS OBSERVED AT THE OUTLET. Corregations are odd….custom pipe???

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated Metal)

Fish Passage Rating:

Length(ft): 209.1

Inlet Type: Projecting

Outlet Type:

Corrugation Depth(in.): 1.5

Corrugation Width(in.): 7.5

Condition Rating(1-5): 3

Approach Angle:

Sedimentation At Inlet:

Inlet Substrate:

Outlet Substrate:

	Inlet	Outlet
Width(ft):	7.0
Height(ft):	7.0
Apron Length(ft):
Water Depth(ft):		2.5
Rustline Height(ft):	3.4
Substrate Depth(ft):

Backwatered?:

Baffles Present: No

Embedded?: No

Outfall Height: -0.31

Outfall Type:

Constriction Ratio: 0.37

Culvert Gradient: 1.16%

Max Slope:

Max Slope Length:

Stream Measurements

Stream Substrates	Upstream	Downstream
Dominant:
Subdominant:

Stream Slope(deg.):
Stream Flow Stage:

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Upstream bank full	75.0	44.70
Upstream bank full	100.0	44.10
Upstream bank full	125.0	43.90
Upstream bank full	150.0	38.10
Upstream bed width	75.0	10.00
Upstream bed width	100.0	14.10
Upstream bed width	125.0	12.90
Upstream bed width	150.0	15.00
Upstream ordinary high water	75.0	21.30
Upstream ordinary high water	100.0	20.30
Upstream ordinary high water	125.0	17.00
Upstream ordinary high water	150.0	16.70

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Max Pool Depth				96.03
OHW Left Bank				96.03
U/S Thalweg	1			96.05
OHW Left Bank				96.25
D/S Thalweg				93.31
D/S Tailcrest or 1st Thalweg				94.80
Outlet Invert	1	0.00	0.0	93.22
Road Elev		104.50		115.02
Inlet Culvert Invert	1	209.00	0.0	95.64

Notes:

River distance is measured continuously throughout the survey reach along the thalweg of the stream.
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.

Photos

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