Naperville’s preliminary 2026 budget calls for $190 million in capital improvement and infrastructure projects — 6% more than last year, city staff said Monday at the first of three Naperville City Council budget workshop meetings.

Most of the funding is slated for transportation and utility infrastructure projects, with about $31.4 million earmarked for upgrades at the Springbrook wastewater treatment facility and $28.4 million for water main replacement work as Naperville continues to address its 37-mile backlog of aging water mains.

Over the next five years, city officials hope to replace 6.5 miles of water mains per year, although that number could increase to 10 miles a year as more mains age.

“In the 2030s, it’s likely that the rate of water mains reaching the end of life will inc

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