Tag Archive: Ohio River

Ohio River Road Damage – Clarksville, Indiana

Ohio River Road Damage - Clarksville, Indiana

The image depicts damage to road running parallel to the Ohio River, in Clarksville , Indiana after recent high water and flooding led to bank erosion. Louisville, Kentucky lies on the opposite side of the Ohio River.

The Ohio River experiences frequent flooding and bank erosion, primarily due to heavy rainfall, snowmelt, and its extensive tributary system. Major floods have historically impacted cities along the river, with some of the worst occurring in 1937, 1997, and 2018. The Great Flood of 1937 was the most devastating, submerging entire towns, displacing hundreds of thousands, and causing widespread destruction from Pittsburgh to Cairo, Illinois. Modern flood control measures, including reservoirs, levees, and the lock-and-dam system managed by the U.S. Army Corps of Engineers, help mitigate extreme flooding. However, heavy storms and prolonged wet seasons still cause periodic water level surges, leading to localized flooding and property damage.

Bank erosion along the Ohio River is another persistent issue, caused by fast-moving currents, seasonal floods, and human activities like dredging and construction. Erosion leads to the loss of farmland, damage to infrastructure, and increased sedimentation in the river, which can affect water quality and aquatic habitats. In urban areas, failing riverbanks threaten roads, bridges, and homes, requiring costly stabilization efforts. Some communities use riprap (rock barriers), retaining walls, and vegetation planting to slow erosion, but long-term riverbank stability remains a challenge. As climate patterns shift, increased rainfall intensity may worsen both flooding and erosion, prompting further investment in floodplain management and conservation efforts.

Ohio River Navigation Dam No. 50 Sign – Marion, Kentucky

Ohio River Navigation Dam No. 50 Sign - Marion, Kentucky

Signage from a defunct navigation dam (no. 50) located on the Ohio River, near Marion, Crittenden County, KY

The Ohio River Lock and Dam System is a critical infrastructure network designed to regulate water levels and facilitate navigation along the 981-mile-long Ohio River. Managed primarily by the U.S. Army Corps of Engineers, the system consists of a series of locks and dams that maintain a consistent channel depth, allowing for the safe and efficient passage of commercial barges, recreational boats, and other vessels. Prior to modern improvements, the river was unpredictable, with natural shallows and seasonal variations making navigation difficult. The system, initially developed in the early 20th century, replaced outdated wooden wicket dams with more advanced high-lift structures that provide year-round navigability. Today, the system supports billions of dollars in commerce, primarily transporting coal, petroleum, steel, and agricultural products.

The lock and dam system works by creating a series of controlled pools along the river, allowing vessels to “lock through” from one water level to another. Each lock chamber is a large, enclosed space with gates at either end that open and close to let water in or out, raising or lowering boats as needed. Notable installations include the Markland Locks and Dam, McAlpine Locks and Dam, and Olmsted Locks and Dam, the latter being the most advanced and expensive project in the system. In addition to navigation, the system plays a key role in flood control, water supply, and hydroelectric power generation, benefiting communities along the river. Continuous modernization efforts ensure the system remains efficient, as aging infrastructure and increasing traffic demand ongoing improvements.

Coal Barge and Tugboat Sunrise – Louisville, Kentucky

Coal Barge and Tugboat Sunrise - Louisville, Kentucky

An early morning coal barge and tug boat head downstream on the Ohio River passing under I-65 and along the waterfront for downtown Louisville, Kentucky. In the distance is the Mc Alpine Locks and Dam, and the Falls of the Ohio.

The McAlpine Locks and Dam in Louisville, Kentucky, is a critical infrastructure component on the Ohio River, enabling river barge traffic to bypass the Falls of the Ohio, a series of rapids that historically obstructed navigation. The Ohio river serves as a key hub for commercial river traffic, including barges transporting commodities like coal, grain, and industrial goods. The Ohio River connects coal mining regions, particularly in Appalachia, to power plants, steel mills, and export markets via shipping terminals in the Gulf of Mexico.