Feldman also took blame for the city’s infrastructure woes. The water and sewer pipes had been neglected for decades, but as they began increasingly bursting during his administration, Feldman was blamed for taking too casual an approach to the problem. The city approved a $200 million bond issue earlier this year, but the magnitude of needed water-sewer work is much larger — $1.4 billion over the next 20 years, a city consultant found.