Fish Passage Site 20501075

Coordinates (dec. deg.): 61.61622°, -149.56526°
Legal Description: S018N002W25
Region: South Central
Road Name: Beverly Lake Road

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

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-MS112

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: Yes
Construction Year:


Site Observations:

  1. Road Fill (pushed off road by grader)
  2. Constriction ratio gray
  3. Culvert gradient red
  4. Outfall height red

Comments: Downstream , 119 ft there is a bridge. Drop into inlet from grassy debris/ cobble in front of inlet.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 45.28
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 40.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Cobble
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft):0.0 0.13
Rustline Height(ft):0.6
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.34
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.5
Culvert Gradient: 4.59%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Road Fill (pushed off road by grader)
  3. Outfall height red
  4. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:CobbleGravel
Stream Slope(deg.):5.6
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 28.0 3.90
Upstream ordinary high water 60.0 3.10
Upstream ordinary high water 74.0 4.40
Upstream ordinary high water 91.0 4.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.42
U/S Thalweg 0.00 99.19
U/S Water Surface Elev 0.00 99.72
U/S Thalweg 49.00 97.19
U/S Water Surface Elev 49.00 97.66
U/S Thalweg 81.00 96.80
U/S Water Surface Elev 81.00 97.00
Inlet Culvert Invert 85.00 96.12
U/S Water Surface Elev 85.00 96.56
Inlet Culvert Top 85.00 98.14
Outlet Invert 130.28 94.07
D/S Water Surface Elev 130.28 94.20
Outlet Culvert Top 130.28 96.06
Max Pool Depth 134.28 93.17
D/S Water Surface Elev 134.28 93.86
D/S Thalweg 156.28 92.40
D/S Water Surface Elev 156.28 92.91
D/S Thalweg 184.28 89.32
D/S Water Surface Elev 184.28 90.23

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