The City Council narrowly approved Mayor Brandon Johnson's controversial $830 million bond deal to finance neighborhood infrastructure improvements, despite complaints that a back-loaded repayment schedule would inflate the total cost to $2 billion by the time all of the debt is paid off.

But the mayor was forced to cast another tie-breaking vote to avoid having the decision on his bond issue put off even longer.

The borrowing plan had been criticized for its structure, which pushes off paying down the principal until 2045. Some members of the City Council also expressed concerns over how the money would be used.