Hurricane Irene by the numbers: state by state damage reports

In North Carolina, some 1,000 residents remain in emergency shelters, while in Virginia, the number has dwindled to 17.

Continuing threats

From a public-safety standpoint, some of the biggest challenges state and local officials face involve people coming into contact with downed power lines, often as they try to remove damaged or downed trees.

In Maryland, one of the three storm-related deaths reported to the state so far occurred because the individual was overcome by fumes from an improperly installed emergency generator.

Water quality is another concern. US Geological Survey scientists are sampling water from six major rivers in the Northeast – from the Susquehanna, which flows out of New York into the Chesapeake Bay, to Boston's Charles River – for sewage contamination. In Virginia, residents in some of the smaller communities in the areas Irene affected are being asked to boil water before drinking it as officials bring water-treatment facilities back on line and test for contamination.

Even as power comes back, teams of federal and state damage assessors are moving into stricken areas to assess damage to homes, businesses, and infrastructure. Those assessments will become the basis for figuring out how much federal disaster aid will be needed to repair homes and businesses.

Floodwaters in New York and Vermont

Yet as assessments get underway at the southern end of Irene's path, communities at the northern end are still struggling with the immediate effects of floodwaters that poured down mountainsides in Vermont as well as in New York's Catskill and Adirondack Mountains.

In both states, roads to and from rural communities have been washed out. At least three of Vermont's iconic covered bridges succumbed to the floods. National Guard units are flying food and water into stranded communities isolated by flood damage to roads and bridges.

In Vermont, 260 roads and 30 bridges are impassable. Some 400 people have been isolated in Killington, Vt., a popular ski and vacation spot.

In New York, "26 counties have been identified with significant damage – flooding, trees down, power outages," Mr. Michalski says. The mostly mountainous counties most affected by flooding "are still in life-safety response."

"The Catskills received between 10 and 12 inches of rain," he says. "That's a heck of a lot."

For affected communities, rainfall from Irene represented close to 25 percent of some communities' typical average annual rainfall.

"We still have to wait for water to recede in many places" to start toting up the damage, Michalski says. In a sentiment many of his counterparts undoubtedly share, assessing effects and beginning the process of recovery "will be going on for months."

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