design of new fishway at sunbury dam
TRANSCRIPT
Design of New Fishway at Sunbury Dam
American Eel
Striped Bass
Alewife
Hickory Shad
Blueback HerringAmerican Shad (Indicator Species)
NYPA
PAMD
NYPA
PAMD
NYPA
PAMD
Cooperstown New YorkCooperstown New York
Susquehanna Flats, MD, around 1899
NYPA
PAMD
NYPA
PAMD
4 Dams on the Susquehanna River Below Sunbury, PA
Sunbury, PASunbury, PA
Conowingo DamConowingo Dam
Holtwood DamHoltwood Dam
Safe Harbor DamSafe Harbor Dam
York Haven DamYork Haven Dam
NYPA
PAMD
Capture of Returning Adult ShadConowingo Dam Fish Lifts
Origin of Returning Adult ShadConowingo Dam Fish Lifts
Origin of Juvenile Shad - Susquehanna River
Vertical Slot Fishway at York Haven Dam - 2000
2001 Shad Fish Passage2001 Shad Fish Passage
As of May 29, 2001...
Conowingo Dam - 184,000 shad
Holtwood Dam - 94,000 shad
Safe Harbor Dam - 74,000 shad
York Haven Dam - 12,000 shad
Record Breaking Year!Record Breaking Year!
NYPA
PAMD
NYPA
PAMD
Bridgestone Rubber Dam
Sunbury Dam - Fully Inflated
Sunbury Dam - Fully Deflated
Inflatable Dam at Sunbury (1985-1988): Replaced all 7 dam segments with Bridgestone Rubber Dams Cost = $3,000,000 13.4 mm thick reinforced rubber
BridgestoneBridgestone
FirestoneFirestoneBridgestoneBridgestone FirestoneFirestone
13.4 mm13.4 mm
5 mm5 mm
Flow
24
Bridgestone Rubber Dam
Vertical Slot Fishway
Serpentine Vertical Slot Fishway
Denil Fishway
El. 517.0
El. 511.0
Water Filled Rubber Dams
Flow
El. 507.0
Pool & Weir Fishway
Water-Filled Bridgestone DamsWater-Filled Bridgestone Dams
Design Criteria Fish Passage Type - Vertical Slot Rise per Fishway Pool < 9 inches Minimum Design Flow 5,000 cfs (T.W. ~ 419.5+) Headwater/Tailwater Diff. ~ 8.75 Feet Number of Pools 12 Pool Depth ~6 Feet Attraction Flow - Adjustable up to ~300 cfs Downstream Entrance Floor - El. 414.3 Upstream Exit Floor - El. 422.0 Top of Fishway Walls - El. 430.0 Design Must Provide Upstream Access Facility Must Not Impact Upstream Flood Levels Public Viewing (Website) Need New 32’ Supplemental Attraction Flow Gate
Fish Passage Type - Vertical Slot Rise per Fishway Pool < 9 inches Minimum Design Flow 5,000 cfs (T.W. ~ 419.5+) Headwater/Tailwater Diff. ~ 8.75 Feet Number of Pools 12 Pool Depth ~6 Feet Attraction Flow - Adjustable up to ~300 cfs Downstream Entrance Floor - El. 414.3 Upstream Exit Floor - El. 422.0 Top of Fishway Walls - El. 430.0 Design Must Provide Upstream Access Facility Must Not Impact Upstream Flood Levels Public Viewing (Website) Need New 32’ Supplemental Attraction Flow Gate
Early 1800s Construction
Dam Deflated - Low Flow
Alternative AAlternative A
Alternative GAlternative G
Alternative CAlternative C
Pump Station Outlet
Alternative CAlternative C
Alternative D2Alternative D2
Alternative EAlternative E
Alternative KAlternative K
Alternative MAlternative M
Flow
New 32-Foot ObermeyerInflatable GateNew 32-Foot ObermeyerInflatable Gate
New 270-FootBridgestoneInflatable Dam
New 270-FootBridgestoneInflatable Dam
Flow
New Control Building
Surveillance & Controls
Design of New Fishway at Sunbury Dam