Fish Passage Site 20103955
Coordinates (dec. deg.): 62.27876°, -145.43544°
Legal Description: C006N001W28
Region: South Central
Road Name: Pipeline Acess Road
Quad Name / ITM: Gulkana B-3
AWC Stream #:
Stream Name: Bear Creek
Site Comments: None
Project Supervisor: Kim Clark, ADFG
— Anchorage, AK
Observers: Kirsti Jurica, Nicole Farnham
Overall Fish Passage Rating:
Step Pools: No
- Culvert gradient gray
- Constriction ratio gray
- Mechanical damage or joints parting
Comments: Inlet invert joints are parting. Isolated pools upstream and downstream, Abundant juvenile grayling in pools. Although approach angle is aligned, stream channel makes a 90 degree turn 50 ft upstream. Overflow pipe is aligned with valley. Rip Rap at outlet. Submitted by Kirsti Jurica with CRWP.
|ID: 1||Structure Type: Pipe-arch (Structural aluminum plate)||Fish Passage Rating:|
Comments: Substrate depth at inlet and outlet not measured or recorded. Outlet substrate noted as armored rock. Althought approach angle is aligned stream channel makes a 90 degree turn 50' upstream. Overflow pipe is aligned with valley.
|ID: 2||Structure Type: Pipe-arch (Structural aluminum plate)||Fish Passage Rating:|
Comments: Inlet and outlet noted to have very small miter. Outlet has armor rock noted as substrate. A baffle is noted in the longitudinal profile for the overflow pipe. Overflow pipe is aligned with the valley.
|Stream Width Type||Distance From
|Upstream ordinary high water||11.70|
|Upstream ordinary high water||8.90|
|Upstream ordinary high water||11.40|
|Road Elev (Road surface)||100.36|
|Outlet Invert (Overflow pipe, no distance included)||84.68|
|Outlet Culvert Top||91.63|
|Road Elev (Road Surface)||100.08|
|Inlet Culvert Top||94.13|
|Inlet Culvert Invert||87.38|
|Misc. (Berm 16 feet upstream of overflow inlet)||89.67|
|U/S Thalweg (Dry 20' upstream of overflow pipe)||0.00||88.11|
|U/S Water Surface Elev||142.00||85.37|
|Inlet Culvert Invert (Dry)||167.00||84.04|
|Inlet Culvert Top||167.00||90.05|
|Outlet Culvert Top||256.00||89.27|
|Max Pool Depth||264.00||82.76|
|D/S Water Surface Elev||264.00||82.52|
|D/S Water Surface Elev||286.00||83.51|
|D/S Water Surface Elev||360.00||83.64|
|D/S Water Surface Elev||371.00||83.31|
- River distance is measured continuously throughout the survey reach along the thalweg of the stream.
- Measured from each end of the crossing along the thalweg of the stream.
Fish Sampling Efforts
No fish sampling occurred during this survey.
No fish observations occurred during this survey.
Questions or comments about this report can be directed to email@example.com