Flood Watch: Ice Jams Trigger Road Closures and Flooding Concerns in Lawrence County
Lawrence County residents are facing a potential flooding situation as rising temperatures contribute to the formation of dangerous ice jams in local rivers and creeks. These jams are already causing road closures and prompting officials to closely monitor water levels.
Understanding the Ice Jam Phenomenon
As temperatures climb, ice begins to break apart and move downstream. However, this movement isn’t always smooth. “The problem arises when the ice encounters obstacles, particularly around river bends,” explains Brian Hutton Jr., Meteorologist for Action News 4. “It can become lodged in these bends, causing a buildup that acts like a temporary dam, preventing water from flowing freely downstream. This leads to water accumulating and eventually overflowing the banks.”
Aerial footage captured by Sky 4, Pittsburgh’s news helicopter, on Wednesday showcased significant ice jams along Neshannock Falls in Lawrence County. The resulting buildup of water is already causing the Neshannock Creek to spill over its banks.
Road Closures and Safety Concerns
Due to the flooding, a section of Route 956 between Mercer Road and Fayette-Neshannock Falls Road has been temporarily closed to ensure public safety. Officials are urging drivers to avoid the area and seek alternative routes.
The Role of Rain in Exacerbating the Situation
Hutton emphasizes that rainfall can significantly worsen the situation. “Flooding typically occurs when ice accumulates to a critical point, or when rain falls on top of existing ice, causing water levels to rise rapidly.” This combination of melting ice and precipitation creates a heightened risk of widespread flooding.
Rivers vs. Creeks: A Difference in Risk
While both rivers and creeks are susceptible to ice jams, Hutton notes that rivers generally pose a greater danger. “Streams and creeks usually have a faster flow and less depth, allowing them to clear ice more efficiently. However, rivers, with their greater volume and slower currents, are more prone to significant ice buildup.”
Ongoing Monitoring and Safety Precautions
Local officials are actively monitoring the situation, keeping a vigilant eye on rivers and creeks throughout Lawrence County. Residents living near waterways are advised to stay informed and exercise caution. For the latest updates and emergency information, subscribe to the WTAE Pittsburgh YouTube Channel.
Source: WTAE Pittsburgh
