Fish Passage Site 20401299

Coordinates (dec. deg.): 61.45491°, -149.80899°
Legal Description: S016N003W28
Region: South Central
Road Name: Lucy Lake Road

Datum: NAD83
Quad Name / ITM: Anchorage B-8
AWC Stream #: 247-50-10300-2001
Stream Name: Lucy Creek Tributary

Elevation:

Site Comments: Bruno Wiida's drive (visited with Bruno)

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 MSB23-MS038

Project Supervisor: Michael Mazzacavallo, Alaska Department of Fish and Game — Anchorage, AK
Observers: Michael Mazzacavallo, Kat Leavitt, Beth Evers

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Structural Problem
  2. Culvert is poorly aligned
  3. Constriction ratio gray

Comments: Outlet has tree growng into opening of culvert. Inlet has bent sides and showing signs of sagging. Culvert is between wetland and pond constructed stream 30ft into inlet.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 32.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 58.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.3 4.65
Height(ft):2.3 2.65
Apron Length(ft):
Water Depth(ft):0.0 0.69
Rustline Height(ft):1.6
Substrate Depth(ft):0.7 1.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 1.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.31
Culvert Gradient: 0.25%
Max Slope:
Max Slope Length:
 

Comments: Used W/S to calculate stream gradient due to the tops of the culverts being too bent to use.
  Culvert Observations:
  1. Structural Problem
  2. Culvert is poorly aligned
  3. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):0.54
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 8.0 18.00
Downstream ordinary high water 25.0 13.20
Downstream ordinary high water 50.0 13.10

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 98.55
D/S Thalweg 0.00 94.19
D/S Water Surface Elev 0.00 96.04
D/S Water Surface Elev 75.00 96.10
D/S Thalweg 75.00 95.40
D/S Thalweg 83.00 94.82
D/S Water Surface Elev 83.00 96.10
D/S Water Surface Elev 102.00 96.16
Outlet Invert 102.00 95.47
Outlet Culvert Top 102.00 98.19
Inlet Culvert Top 134.10 97.90
U/S Water Surface Elev 134.10 96.24
Inlet Culvert Invert 134.10 95.65
U/S Thalweg 156.10 96.22
U/S Water Surface Elev 156.10 96.87
U/S Water Surface Elev 171.10 96.97
U/S Thalweg 171.10 95.23

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.

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