Fish Passage Site 10302250

Coordinates (dec. deg.): 58.41309°, -135.75533°
Legal Description: C040S058E12
Region: Southeast
Road Name: Lukes Drive

Datum: NAD83
Quad Name / ITM: Juneau B-6
AWC Stream #:
Stream Name: Good River

Elevation:

Site Comments: None

Survey Date: Aug 08, 2011

Survey SEA11-MTV01

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is too short
  2. Structural Problem
  3. Road bank erosion

Comments: Mountain View Road/ Lukes Dr.. Visual Observation Salmonids Up/Downstream. Pipe very distorted, smashed but functional. Pipe too short. Inlet perch at low flows.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating: Green
 
Length(ft): 22.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 29.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.4 5.4
Height(ft):4.7 4.6
Apron Length(ft):
Water Depth(ft): 0.54
Rustline Height(ft):3.1
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.22
Culvert Gradient: -4.69%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is too short
  2. Structural Problem
  3. Road bank erosion

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:GravelGravel
Stream Slope(deg.):0.1
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 30.0 6.50
Upstream ordinary high water 70.0 7.40
Upstream ordinary high water 100.0 5.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Tailcrest or 1st Thalweg 0.00 97.97
D/S Water Surface Elev 0.00 99.03
Outlet Pool Water Elev 19.00 99.02
Max Pool Depth 19.00 95.99
Outlet Invert 31.00 98.47
D/S Water Surface Elev 31.00 99.01
Inlet Culvert Invert 53.80 97.40
U/S Headwater 53.80 99.08

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) Trap Duration(h): 30.0
Channel Type: Main Channel (>50% of water flow)
Comments: Unidentifed juvniles observed upstream and downstream from culvert.
 
Gear Type: Visual Observation, Ground (B) Trap Duration(h): 30.0

Fish Observations

No fish observations occurred during this survey.

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