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2019 Salt River Siphon Outage Customer Focus Meeting
Darrin Francom, PEEngineering Services Department Manager
Agenda1. Overview of the Siphon2. Review of Repair in 20013. Results of 2009 Inspection4. 2019 Project Plan5. Outage Coordination
Location - Orientation
Canal To Pipe Transition(Stop Log for Isolation)
Pipe to Canal Transition(Stop Log for Isolation)
Salt Gila Pumping Plant
SRP Arizona Canal
SRP South Canal
Location - Orientation
CAP Delivery Channel to SRP
Salt River
SRP Arizona Canal
SRP South Canal
Salt River Siphon
Facts
21 foot diameter 8,700 feet long Steel Constructed 1995 Interior Coating:
• Original – Coal Tar Epoxy• Repair – Devoe 238 Repaired in 2001 70% of Water Deliveries
2001 Coating Repair Project
2001 Repair Project
Overview:• Performed with In-House Crews (All)
• Two 12 Hour Shifts, 7 Days Per Week
• Repair of Coating at Welds (abrasion)
• Found Coating Blistering
• Planned for 5 weeks
2001 Simplified Project Plan
• Dewater• Open Evacuation Structure/ Drain Siphon• 8 Million Gallons of Water Remains to be Pumped
• Open Manholes and Utility Access Holes• Install Large Pumps• Set Up Ventilation• Remove Fish• Clean and Inspect• Install Portable Scaffolding• Water Blast Repair Areas• Apply 3 Coats Of Protective Coating
2001 Repair Project
Blow Off Manhole
Manhole Evacuation
Structure
ManholePump Elevation
1300
Dewater Pipe Basic Procedure:1. Open Blow Off & Evacuation Structure2. Pump Remaining at Manhole(s)
Siphon Profile
River Profile
2001 Repair Project
Evacuation Structure
2001 Repair Project
Evacuation Structure
2001 Repair Project
Evacuation Structure & View From Inside Siphon
2001 Repair Project
Open Manholes, Begin Pumping
2001 Repair Project
Safety & Ventilation
2001 Repair Project
Fish Removal
2001 Repair Project
Abrasion and Corrosion on Welds
2001 Repair Project
Abrasion and Corrosion on Welds
Spot Blistering Full Circumferential Blistering
2001 Repair Project
Ultra-High Pressure Preparation
2001 Repair Project
Fabricated Cart for Coating
2001 Repair Project
Primarily Hand Applied Coating
2009 Condition Assessment and Inspection
2009 Inspection
Blistering of Coal Tar Coating Spot Failure
2009 Inspection
3 Coating Layers: Gray – RED - Gray Abrasion – Welded Joints 4 – 8 O’Clock, Nearly All Joints
2019 Project Discussion
2019 Repair Project: Challenges
Dewatering
Fish Handling and Removal:• In Channel From Blow-off• In Pipe
Confined Space Work
Undefined Scope - Budgeting
Tight 6 Week Schedule
Project Planning & Execution Process
Work / Project Identification Based on CBM: 2009
Project Approval Through Project Steering Committee: 2016
Stakeholder Engagement: Feb 2017
Project Planning Document: Feb – Mar 2017
Place into Work Execution Plan: Mar 2017
Budget in 2018 – 2019: Apr 2017
Project Planning & Execution Process
A/E & Contractor Selection: May – July 2018
Design and Scoping: July – Dec 2018
Construction Bidding & Negotiation: Jan - Feb 2019
Contract Approval: Mar 2019
Execute Contract: • Preconstruction Activities: April 2019• Mobilize: Aug – Sept 2019• Execute: Oct – Nov 2019• Closeout: Nov 2019
Week 6
Weeks 3-5
Week 2
Week 1
2019 Repair Project: Anticipated Scope
1. Blow-Off 2. Gain Access and Ventilate3. Remove Fish4. Clean / Power Wash5. Dewater Completes6. Pipe Inspection7. Manhole and Specials Inspection8. Scope Fully Defined9. Re-Coat all Welded Joints10. Spot Recoating11. Final Inspections12. Acceptance13. Water-up and Return to Service
Outage Coordination
Coordination of Outage Dates
CAP is proposing a 6-week duration for the Salt River Siphon Outage, with a start date between
10/1/2019 and 11/1/2019
For outage dates that start after 10/8/2019 there may be conflict with SRP planned dry ups
Coordination of Outage Dates
CAP is requesting from customers
• Preferred start date for the outage
• Any issues or challenges that might be incurred due to the duration or timing of the identified work.
Feedback due by: April 17, 2017
CAP Operations Follow Up• CAP Operations will follow up today’s meeting with a
customer letter containing the request for information from customers
• CAP Operations will continue to work with customers as needed on customer specific issues
• CAP Operations will notify customers in writing the final dates for the Salt River Siphon Outage (targeting August 2017)
• CAP Operations may schedule additional customer meetings if needed
Feedback from CAP Customers
• Please provide feedback in writing, only written responses will be considered for project planning
• Send email responses to [email protected]
• Or mail to attentionMelinda Whittington
23636 N. 7th StreetPhoenix, AZ 85024
CAP Project Planning
CAP will use consider customer responses to
• Set a start date for outage
• Coordinate with CAP’s Project team for project requirements
• Allocate water from canal storage for customers
• Address customer concerns
Project Contacts
Patrick Dent, Water Control [email protected]
Melinda Whittington, Water Services [email protected], or [email protected]
John Hussen, Water Control [email protected]
