The time taken to repair roads and footpaths dug up for water and sewerage works in Sydney could be cut in half under a historic agreement between local councils and the city’s water authority, the New South Wales government says.

Leaders of 42 councils gathered at the Prince Henry Centre in Little Bay to sign a memorandum of understanding with Sydney Water which commits both councils and the utility to agreed time frames, quality specifications and ongoing management practices for road and footpath restoration. Under the agreement, a 90-day target…