When it comes to sewer system rehabilitation, municipalities must decide whether to repair or replace aging infrastructure. Here are a few key factors to help make the decision:

1. Condition of the Pipes
   • Repair: If damage is minor, like small cracks or leaks, repairing the pipes can restore functionality without extensive work.
   • Replace: For severely corroded or structurally compromised pipes, replacement is often necessary to avoid ongoing issues.
2. Age of the System
   • Repair: Relatively newer systems (under 30 years old) may only need minor repairs to keep running smoothly.
   • Replace: Older systems (50+ years) often require full replacement as they may no longer meet current standards or are prone to frequent failures.
3. Cost vs. Long-Term Investment
   • Repair: Repairs are generally cheaper upfront but may not address underlying issues, leading to higher maintenance costs over time.
   • Replace: While replacements are more expensive initially, they offer long-term reliability and reduced maintenance.
4. Environmental Impact
   • Repair: Repairing pipes typically causes less disruption to the surrounding area, making it a more environmentally friendly choice for small issues.
   • Replace: Replacement can be more disruptive but is sometimes necessary to ensure a sustainable, efficient system in the future.
5. Future Needs
   • Repair: If the system is still meeting the current demand, repairs can extend its lifespan without major changes.
   • Replace: For systems that need increased capacity or better performance due to growth or new regulations, replacement is often the best option.

Choosing between repair and replacement depends on the system's condition, cost, and future needs. Balancing short-term savings with long-term reliability is key to making the right choice.