Fish Passage Improvement site 20501389

Fish Passage Site 20501389

Coordinates (dec. deg.): 62.58795°, -150.23599°
Legal Description: S029N005W20
Region: South Central
Road Name: Parks Highway

Datum: NAD83
Quad Name / ITM: Talkeetna C-1
AWC Stream #:
Stream Name: Chulitna River tributary

Elevation:

Site Comments: CHULITNA RIVER WATERSHED,

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 MSB11-PRK16

site photos

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Abraham Gioffre, Jim Latham

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Culvert gradient red
Outfall height red

Comments: Site is too brushy to survey and the pipe gradient was determined using the range finder slope function. Dwst of the site are several grade drops with the first one measured at 1.9' with the survey rod. Pipe gradient determined using the slope feature of the range finder. Could not survey due to heavy brush. **Updated site photos and fish sampling information added from 9/22/16 site visit from Sampling Unmapped Streams in the MSB project. Culvert now has a RED outfall.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Structural steel plate)

Fish Passage Rating: Red

Length(ft): 172.4

Inlet Type: Mitered

Outlet Type: Mitered

Corrugation Depth(in.): 2.0

Corrugation Width(in.): 6.0

Condition Rating(1-5): 2

Approach Angle: 20.0

Sedimentation At Inlet: No

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	6.0	6.0
Height(ft):	5.94	5.96
Apron Length(ft):	0.0	0.0
Water Depth(ft):		0.3
Rustline Height(ft):	1.0
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height: 0.0

Outfall Type: At Stream Grade

Constriction Ratio: 0.84

Culvert Gradient: 4.50%

Max Slope:

Max Slope Length:

Comments: Pipe gradient measured with range finder to be 4.5%. Inlet miter length measured 10' and the outlet miter length was 8' as the length is the total to the end of pipe.

Culvert Observations: