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PRESENTATION FOR CWEA TRAINING Keys to Successful Pipeline/Infrastructure Projects. Pipeline Flow Diversion. Presented by: Tom Epperson, PE, Tetra Tech. Keys to Successful Pipeline/Infrastructure Projects. Pipeline Flow Diversion. Tom Epperson, PE, Tetra Tech.

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presentation for cwea training keys to successful pipeline infrastructure projects

PRESENTATION FOR CWEA TRAININGKeys to Successful Pipeline/Infrastructure Projects

Pipeline Flow Diversion

Presented by: Tom Epperson, PE, Tetra Tech

maintaining sewage flow during construction
Maintaining Sewage Flow During Construction
  • Connections to Existing Sewer
  • Manhole Connections or Rehab Work
  • Rehabilitation – Bypass Pumping
connection to existing sewer maintain sewage flow
Connection to Existing Sewer – Maintain Sewage Flow
  • Construct New MH over Existing Pipe
  • Keep Flow within Pipe
  • Modify Channel/Base
  • Cut and Remove Top of Existing Pipe
connection to existing sewer maintain sewage flow2
Connection to Existing Sewer – Maintain Sewage Flow
  • Existing Sewer Pipe
  • Add Manhole Base& Shaft
slide7

Connection to Existing Sewer – Maintain Sewage Flow

  • Existing Sewer Pipe
  • Add Manhole Base& Shaft
  • Modify Channel &Side Pipe
slide8

Connection to Existing Sewer – Maintain Sewage Flow

  • Existing Sewer Pipe
  • Add Manhole Base& Shaft
  • Modify Channel &Side Pipe
  • Cut & Remove Topof Pipe
manhole connections or rehab work1
Manhole Connections or Rehab Work

Key Issues:

  • MH Access (cover size)
  • Confined Space Entry
  • Sizing of Flow-thru Tubes
  • Confirmation of Back-up
manhole work
Manhole Work

Flow-thru Tubing

manhole work1
Manhole Work

Flow-thru Tubing

key elements of bypass plan
Key Elements of Bypass Plan
  • Bypass Pumps
  • Bypass Piping
  • Redundancy
  • Spill Prevention & Response Plan
  • Noise Monitoring
  • Odor Monitoring
  • Monitoring Systems
bypass pumps
Bypass Pumps
  • Capacity – Typical Sewage Flow & Peak Flow Rate
  • Suction Supply
  • Pumping Equipment (submersible, self-priming centrifugal)
  • Valving
key design issues
Key Design Issues
  • Confirm Capacity
  • Location of Bypass Pumping & Piping
  • Traffic Control
  • Duration of Bypass
  • Contractor Submittals: bypass plan, noise, odor, monitoring, and redundancy
slide22

QUESTIONS

Maintaining Sewage Flow During Construction Activities