Hundreds of volunteers mobilized April 15 in Manawa, Wisconsin, to protect the city’s wastewater treatment plant as flooding spread across Waupaca County. Beginning at 5 a.m., residents, students and neighboring fire crews worked together to fill and stack sandbags, building barriers to prevent costly damage. Local officials say the effort has been effective.The urgency stems from both the current flood threat and lingering memories of a dam failure two years ago that overwhelmed the system, causing sewage backups and widespread basement flooding. City leaders warn that losing the plant again could result in millions of dollars in damage, while noting
