Additional equipment, left, from Associated Pump & Supply of Houma has arrived at the Sewerage and Water Board building where the fixed turbine is housed, background right, in New Orleans, La. Friday, Aug. 11, 2017. The company website says 'following Hurricanes Katrina and Rita, Associated Pump & Supply was instrumental in dewatering areas affected by flooding.'

Advocate staff photo by MATTHEW HINTON

The last four generators intended to provide back-up for New Orleans' drainage system have arrived in the city and are being installed, officials said Monday.

There are now 26 generators in the process of being installed throughout the city to provide backup power to the Sewerage & Water Board's pumps should more power problems arise.

During the Aug. 5 floods, power issues may have kept some drainage pumps offline. Those problems were brought into even clearer focus last week, when a fire took the one turbine that can provide direct power to the pumps offline for a day, leaving the city reliant on its last backup power supply and Entergy to run the pumps.