USACE Louisville District · 2019
Weldon Spring Reserve Center propane-to-natural-gas conversion
Seven buildings on an Army Reserve campus converted to natural gas, substantially complete four months ahead of schedule and before the heating season.
- Client
- U.S. Army Corps of Engineers, Louisville District
- Facility
- 88th Readiness Division Reserve Center
- Final value
- $362,485 (orig. $348,790)
- Performance
- Mar 2019 – Mar 2020
- Completion
- Substantially complete Nov 2019
- Location
- St. Charles County, Missouri
Project overview
The local gas utility extended a new main to the campus and set meters at each building. SIS installed the underground service laterals from the new main, completed meter and regulator work, made the final building connections and converted every piece of fuel-fired equipment from propane to natural gas.
Scope of work
- Removal of existing underground and exposed propane piping
- Nitrogen purge of abandoned underground piping
- Directional-bored laterals from the new main to each building
- Gas meters, regulators and final service connections
- Conversion of air handlers, heating units and boilers
- Conversion of water heaters and kitchen equipment
- Testing and adjustment of all equipment and regulators
Challenges and how we solved them
Boring under roads, pavement and live utilities
Close coordination with local utility locate services before and during directional boring across the campus.
Working to the gas utility's schedule
Ongoing communication with the utility to time the final tie-ins to the new main.
Keeping an operating campus warm
Work was scheduled for summer, and interior conversions ran concurrently with exterior utility work to compress the schedule.
RESULT
Substantially complete four months ahead of schedule and before the heating season.
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What this project shows
- Substantially complete four months ahead of schedule
- Seven buildings converted with no loss of heat to occupants
- Directional boring under roads and live utilities
- Coordination with a gas utility's own construction schedule
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