Fish Passage Improvement site 20503779

Fish Passage Site 20503779

Coordinates (dec. deg.): 61.52872°, -149.59915°
Legal Description: S017N002W26
Region: South Central
Road Name: West Birch Harbor Drive

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10305
Stream Name: Crocker Creek

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 UPDATE-BIR01

site photos

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Mark Eisenman

Overall Fish Passage Rating: Black

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

Inlet perch

Comments: Site visited to get baseline data and take photographs. This culvert was not assessed during the 2009-11 MSB Fish Passage Project. Outlet is at grade but does riffle downstream about 20 feet. Lots of well establish moss on the rocks and logs around and in the creek shows this creek has a fairly low and consistent flow. This is a pond upstream and there is a channel that has been cut to allow some stream flow into the pond. No outlet to the pond was observed.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated aluminum)

Fish Passage Rating: Black

Length(ft): 100.0

Inlet Type: Projecting

Outlet Type: Projecting

Corrugation Depth(in.):

Corrugation Width(in.):

Condition Rating(1-5): 3

Approach Angle:

Sedimentation At Inlet: Yes

Inlet Substrate: Gravel

Outlet Substrate: Gravel

	Inlet	Outlet
Width(ft):	3.0	3.0
Height(ft):	2.6	3.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height:

Outfall Type: At Stream Grade

Constriction Ratio:

Culvert Gradient:

Max Slope:

Max Slope Length:

Comments: Culvert length estimated using GIS. Most of culvert looks to be aluminum, but there appears to have been a section of steel pipe added at inlet to extend length. Debris at inlet causing an inlet perch. Culvert looks undersized for creek. There is a little sediment at both the inlet and outlet.

Culvert Observations: