Harbor Road in Stony Brook collapsed from catastrophic flooding during storm thunderstorms Sunday night. The storms also knocked out a dam, draining the water from Mill Pond.

The road collapse left a street with seven households cut off. Fish and wildlife that occupied the pond were killed when the water drained.

Suffolk County Executive Ed Romaine declared a state of emergency.

The county and Brookhaven Town are hoping for state and FEMA funds to fix the collapsed road, and fix the widespread damage.