A section of Highway M-119 between Island View and Division Road in Michigan collapsed, with the Emmet County Sheriff's Office attributing the damage to flooding and advising drivers to seek alternative routes. This infrastructure failure underscores the severe impact of ongoing flooding conditions driven by rain and snowmelt across the region. Officials first issued warnings about rising waters on April 7, when the water level at the Cheboygan Dam was measured at 21.5 inches below the top of the structure.
On Sunday, the Michigan Department of Natural Resources activated five pumps to divert water around the Cheboygan Dam, aiming to mitigate the rising floodwaters. All dam gates on the DNR-managed portion are fully open to handle the flow. By Sunday afternoon, DNR officials reported water levels had reached within 15 inches of the top of the dam, highlighting the escalating threat.
The Cheboygan County Sheriff's Office issued a warning that the dam's water levels had reached the 'READY' mark of the state's emergency safety protocol. Under the 'READY, SET, GO' system, the 'READY' status indicates water has risen to within 12 inches of the top of the dam, with levels increasing by at least 3 inches per day. This stage requires residents to begin packing essentials and finalizing evacuation plans, as authorities prepare for potential further escalation.
Governor Gretchen Whitmer declared a state of emergency for the area on Friday, amplifying the official response to the crisis. The National Weather Service issued a flood watch for the northern half of Lower Michigan, placing the area under this alert until 8 a.m. Wednesday, April 15. These coordinated warnings aim to ensure public safety as water levels continue to pose a significant risk to infrastructure and communities.
Officials have urged residents to sandbag their homes, secure outdoor items, move valuables to higher levels, and prepare to evacuate. Specifically, authorities in northern Michigan advised that residents near the Cheboygan Lock and Dam Complex should be ready to leave at any time due to the threat of rising waters. Law enforcement also recommended packing go-bags with medications and important documents, staying away from riverbanks and low-lying areas, and taking proactive steps to safeguard property.
The Cheboygan Dam, built in 1922, is classified as a high-hazard structure, meaning a failure could lead to significant destruction and loss of life. It was rated in 'fair' condition during a September 2022 inspection and is not currently producing power. The dam is privately owned by Hom Paper and remains part of a lock system managed by the Department of Natural Resources to allow boat traffic on the river.
Crews are working with the Federal Energy Regulatory Commission to decide on options to re-open a hydroelectric generation station to move more water. Additional mitigation efforts included installing more pumps on Sunday to help move water around the Cheboygan Dam complex and prepare for further rain and snowmelt. Crews also placed 1,500 sandbags along the lock on Thursday and added more on Saturday to serve as a buffer against rising water.
The forecast calls for scattered thunderstorms Monday night, with a 30 percent to 60 percent chance of showers continuing into Tuesday, and rain expected to last through Thursday. This persistent wet weather exacerbates the flood risk, potentially accelerating water level rises at dams and rivers across the region.
In a separate but related development, Newaygo County Emergency Services urged residents living in the Muskegon River floodplain below Croton Dam to evacuate quickly as water levels continue to rise. The agency warned that public safety services will not be available until conditions become safe to respond for anyone choosing to remain in the floodplain.
Infrastructure and safety concerns are mounting, with expectations that people in impacted areas may lose power. Road washouts are a problem, with concern that people will become stranded because a road is washed out.
Officials have warned that roadblocks may be set up to handle traffic if a full evacuation becomes necessary.
The Cheboygan Dam's ownership and operational context involve private management by Hom Paper, with the Department of Natural Resources overseeing the lock system for river navigation.
Escalation stages of the dam emergency protocol define clear thresholds for action: the 'SET' stage occurs when water reaches 6 inches from the top of the dam or is predicted to overflow within 48 hours, at which point residents should be ready to leave immediately. A mandatory 'GO' order is issued if water reaches within 1 inch of the top, signaling a high probability the dam will fail or be overtopped.