In Kentucky, the flooding resulted in scattered road closures and flooded basements.
No casualties were reported, but many homes in Peterborough had flooded basements and/or main floors.
Some 350,000 houses lost electricity, and tens of thousands had flooded basements.
Authorities from a number of city agencies worked to cut off the flow of water, which flooded basements in six houses, Firefighter Iannizzotto said.
The fracture in the 48-inch, low-pressure pipeline flooded basements, knocked out some telephone service and disrupted morning rush-hour traffic.
Top Chicago financial exchanges were closed as water flooded basements, but markets elsewhere faced little disruption.
Along the coast of Connecticut, high tides and heavy rainfall flooded coastal roads and basements.
Buildings that did not suffer any first floor damage had flooded basements.
The rain flooded basements and streets in the Cape Sable area.
Those two buildings and 30 others still have flooded basements, and many others are bracing for temporary power failures as the clean-up begins.