Fish Passage Site 10302238

Coordinates (dec. deg.): 58.59278°, -134.90228°
Legal Description: C038S064E07
Region: Southeast
Road Name: Glacier Highway

Datum: NAD83
Quad Name / ITM: Juneau C-3
AWC Stream #:
Stream Name: Bessie Creek

Elevation:

Site Comments: Glacier Highway at MP 35

Survey Date: Jul 08, 2011

Survey SEA11-GLH10

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Jason Olds, Charmagne Gutierrez

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio red

Comments: None

Culvert Measurements

ID: 1 Structure Type: Oval (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 139.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.5
Condition Rating(1-5): 3
Approach Angle: 18.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):7.7 7.7
Height(ft):8.8 8.8
Apron Length(ft):
Water Depth(ft): 0.16
Rustline Height(ft):2.2
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.64
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.37
Culvert Gradient: 5.69%
Max Slope:
Max Slope Length:
 

Comments: 3' conrete Footer @ inlet and outlet. Stream grade obtained using only 6.5 times mean OHW because channel terminates at ~20 waterfall. * Oval pipe Vertical
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red
  3. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleBoulder
Subdominant:GravelCobble
Stream Slope(deg.):2.44
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 62.0 22.30
Upstream ordinary high water 101.0 21.50
Upstream ordinary high water 116.0 17.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Grade Ctrl (Thalweg) (Top of glide) 0.00 89.95
D/S Water Surface Elev 0.00 90.68
D/S Thalweg (Taken in the Thalweg of a continious riffle) 28.00 92.52
D/S Water Surface Elev 28.00 93.05
D/S Water Surface Elev 37.00 93.50
D/S Tailcrest or 1st Thalweg 37.00 92.92
Max Pool Depth 55.00 90.70
Outlet Pool Water Elev 55.00 93.56
Outlet Invert (on metal) 77.00 94.04
D/S Water Surface Elev 77.00 94.20
Inlet Culvert Invert (on metal) 217.00 101.96
U/S Water Surface Elev (turbulent) 217.00 102.38
U/S Headwater (1st resting) 217.00 102.42
U/S Grade Ctrl (Thalweg) 239.00 103.39
U/S Water Surface Elev 239.00 104.01

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: None (A)
Comments: No traps set no fish observed.

Fish Observations

No fish observations occurred during this survey.

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