RIVERHEAD - A neighborhood destroyed by a nor'easter in 2010 was torn down today, marking the end of a two-year nightmare for many residents. Demolition began today on a dozen Horton Avenue homes destroyed in a spring 2010 nor'easter. Getting help for affected residents took time as town, county and state leaders fought for funding from the federal government. Officials secured $3.5 million in FEMA disaster relief funds late last year. Some of that money would go to residents, while the rest would be put toward designating the destroyed area an artificial wetland to prevent flooding in the future. Now that federal funding has been secured, homeowners can cash in on their water-logged homes for nearly $200,000 each. Once the properties are converted into drainage ditch, floodwaters will flow away from dozens of other homes in the neighborhood.Riverhead residents sinking in aid delays