US Army Corps of Engineers BUILDING STRONG ® Portable Floating Fish Collector (PFFC) Sean Askelson Chris Budai - PM Kristy Fortuny - TL Dave Griffith Todd Pierce Greg Taylor HDR, Cherokee, USGS FEB 2015

BUILDING STRONG ® PORTLAND DISTRICT 2 PFFC Overview  Information for Cougar Downstream Passage  Schedule ► Design ► Construction  Facility Overview  Proximity to Tower  Depth of FCM  Hydraulic Tuning Settings  Vibration

BUILDING STRONG ® PORTLAND DISTRICT 3 PFFC-Information for Downstream Passage  We have a surface route at Cougar (temperature weirs)  We know the PFFC is small, but… ► Looking at % fish in PFFC flow net, compare to % fish captured ► Looking at how that ratio changes when we operate at lower flows ► Could help narrow down fish outmigration timing?  We are learning on a small scale facility

BUILDING STRONG ® PORTLAND DISTRICT 4 PFFC-Schedule  Engineering Design Report DEC-2011 ► Anticipated Final Plans and Specs APR-2012 ► Anticipated Operational by SEP-2012  No DDR. Straight to Plans and Specs  Started Plans and SpecsAPR-2012  Finalized Plans and Specs OCT-2012  Construction AwardedAPR-2013  Facility was Operational 28-MAR-2014

BUILDING STRONG ® PORTLAND DISTRICT 5 PFFC-Facility Design Goals 120 cfs total capacity 50 cfs half capacity adjustable bypass Q FLOW

BUILDING STRONG ® PORTLAND DISTRICT 6 PFFC-Facility Plan View of Screens 8 Dewatering BaysBypass Control

BUILDING STRONG ® PORTLAND DISTRICT 7 PFFC-Facility Profile View of Screens 8 Dewatering BaysBypass Control

BUILDING STRONG ® PORTLAND DISTRICT 8 PFFC-Proximity to Tower  Due to anchorage limitations, the installed PFFC was ~150-ft from the Temperature Tower  The PFFC did not intercept the flow into the tower wet well ► Potential to miss fish following the flow towards tower  The PFFC could not rotate “into” the flow due to anchorage constraints ► Less than ideal entrance hydraulics

BUILDING STRONG ® PORTLAND DISTRICT 9 PFFC-Proximity to Tower

BUILDING STRONG ® PORTLAND DISTRICT 10 PFFC- Depth of Flow Control Module  FCM was too low in water  Bypass flow was too high (energy dissipation) Too Much Q

BUILDING STRONG ® PORTLAND DISTRICT 11 Photo: T. Pierce Ramp Weir Flume  We designed and installed interim remedy measures ► Weir/ramp – controls bypass flow ► Flume – improves fish safety/handling PFFC - FCM

BUILDING STRONG ® PORTLAND DISTRICT 12 PFFC-Vibration

BUILDING STRONG ® PORTLAND DISTRICT 13 Hydraulic Tuning Data collected and summarized by USGS, Cook, Washington.

BUILDING STRONG ® PORTLAND DISTRICT 14 Hydraulic Tuning Data collected and summarized by USGS, Cook, Washington.

BUILDING STRONG ® PORTLAND DISTRICT 15 PFFC-Operations in 2014  Not close enough to the tower  Not aligned with flow lines approaching tower  FCM too low ► Weir/Ramp to control bypass flows ► Lower than optimal approach velocity ► Did not reach capture velocity  Lower “high discharge” than desired  Confirm velocity gradient through facility  We learned a lot on a small scale facility!

BUILDING STRONG ® PORTLAND DISTRICT 16 Closer to wet well and ability to rotate into flow PFFC – Revised Proximity to Tower

BUILDING STRONG ® PORTLAND DISTRICT 17 PFFC- Additional Improvements for 2015  Raising the FCM in the water column ► Allows use of ballast to adjust depth ► Remove the weir/ramp: allows the constrictor panels to control bypass flow ► Better hydraulic transition from screen to bypass ► Less entrance same flow = higher velocities  Stiffened the porosity panels (minimize vibration) ► Allow to operate at upper end of design range  More flow into facility = higher approach velocity

BUILDING STRONG ® PORTLAND DISTRICT 18 PFFC Overview  To inform data gaps for Cougar Downstream Passage PDT

BUILDING STRONG ® PORTLAND DISTRICT 19 Discussion Photo: T. Pierce