Construction Activity Sequence
Multiple construction activities may occur simultaneously.
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This is a general description of how the construction will progress. Each section of the alignment has unique features and requirements which may change the order of the sequence and/or add new elements to it.
Acquire pipeline construction easements
Trees and stumps removed along alignment
Pipeline installation:
- Signage up (or notification given) two weeks prior to construction beginning
- Notification given 48 hours or 500 feet prior to construction reaching residences
- Dust control is continuous during construction hours, 7:00 AM to 7:00 PM
- Traffic rerouted or flagged for safety
- Pipeline installation begins
- Asphalt removal or grinding
- Trenches excavated to the length expected to be completed during the day
- Driveways along alignment will have plates installed for ingress/egress over open trench
- Gravel installed and leveled inside the trench
- Pipe wrapped in plastic coating and laid in place
- Pipe connected and welded together
- Welds tested and approved
- Fiber optic conduit installed
- Pipeline backfill installed and compacted
- Trench backfill installed and compacted
- Road base and asphalt cap installed over trench
- Treated water system, which includes fire hydrants and residential services, installed after raw water pipeline is completed; the above sequence repeats while treated water system is installed
General clean-up of site
Final clean-up of site
Restoration process begins