Officials in Pennsylvania’s capital had long hoped that an electricity-generating trash incinerator built in 1969 would yield a reliable revenue stream. But years of upgrades and repairs had put the city on the hook for more than $300 million in debt – more than three times the overall budget. Faced with strong opposition to tax hikes, the city council sought Chapter 9 protection in October 2011, but Gov. Tom Corbett (R) blocked the filing under state law and put a receiver in place to renegotiate the debts with creditors.