Volunteers have collected enough money to ensure the parking lot next to the Roseburg National Cemetery will be paved next summer, according to the head of the group raising money for the project. Guardians of Heroes President Derek Simmons said Friday the group will continue to raise money, but it has secured enough to begin construction. “We are going to break ground on it in July, that’s for certain. The only question is: Are we going to do the whole parking lot or just part of it?” Simmons said. The Guardians of Heroes and local Rotary Clubs wrapped up a …