Fish Passage Site 20400022

Coordinates (dec. deg.): 61.31187°, -149.57526°
Legal Description: S014N002W11
Region: South Central
Road Name: Hidden Haven Drive

Datum: NAD83
Quad Name / ITM: Anchorage B-7
AWC Stream #: 247-50-10110-2053
Stream Name: Meadow Creek

Elevation:

Site Comments: Culvert outlet is 800-1000 feet upstream from confluence with Eagle River. Another culvert upstream 20400023 on VFW Drive.

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 UPD21-HID01

Project Supervisor: Kim Clark, ADFG — Anchorage, AK
Observers: Kim Clark, Michael Mazzacavallo

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: Yes
Construction Year:


Site Observations:

  1. Culvert sagging in middle

Comments: Stream is at OHW. Channelized upstream between two roads. Downstream about 800-100 ft is the confluence with Eagle River.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 53.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.25
Corrugation Width(in.): 4.5
Condition Rating(1-5): 5
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):13.0 13.1
Height(ft):7.74 6.42
Apron Length(ft):
Water Depth(ft): 0.83
Rustline Height(ft):0.7
Substrate Depth(ft):1.4 2.75
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 1.4
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.19
Culvert Gradient: 2.94%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert sagging in middle

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleGravel
Subdominant:GravelCobble
Stream Slope(deg.):2.84
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Downstream ordinary high water 231.0 16.50
Downstream ordinary high water 258.0 8.80
Downstream ordinary high water 366.0 7.50

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
D/S Thalweg 0.00 91.32
D/S Water Surface Elev 0.00 92.13
D/S Thalweg 32.00 92.45
D/S Water Surface Elev 32.00 93.23
D/S Grade Ctrl (Thalweg) (Grade control 3 ft below outlet. Measurement just below grade control.) 56.00 92.99
D/S Water Surface Elev 56.00 93.68
Outlet Culvert Top 63.00 100.00
Outlet Invert 63.00 93.24
D/S Water Surface Elev 63.00 94.07
Inlet Culvert Invert 116.00 93.80
Inlet Culvert Top 116.00 101.58
U/S Water Surface Elev 116.00 94.66
U/S Thalweg 125.00 94.39
U/S Water Surface Elev 125.00 95.33
U/S Thalweg 145.00 95.69
U/S Water Surface Elev 145.00 96.15

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