Rising transportation costs and vessel shortages could impact farm profitability and export competitiveness.
The U.S. grain transportation system faces growing challenges as the inland barge fleet continues to age while replacement rates fail to keep pace with retirements. A new report from CoBank's Knowledge Exchange highlights concerns that transportation constraints could increase costs for farmers and weaken the nation's export competitiveness.
Barges play a critical role in moving agricultural commodities across the country. The Mississippi River system serves as one of the most important grain transportation routes in the United States, carrying large volumes of corn, soybeans and wheat to export terminals.
According to the report, the U.S. inland barge fleet has declined to 19,668 vessels, a decrease of nearly 7.6% over the past decade. At the same time, the average barge age has increased from 13.8 years in 2016 to 17.6 years in 2026. Since hopper barges typically have a lifespan of 25 to 30 years, many vessels are approaching retirement age.
The challenge is compounded by a growing gap between new construction and vessel retirements. About 410 new barges are built annually, while between 500 and 1,000 are retired each year. If this trend continues, the fleet could shrink to about 16,240 barges by 2035, representing a decline of more than 17%.
Industry analysts warn that reduced barge availability may increase freight rates and transportation expenses. Higher transportation costs often reduce grain bids offered to farmers because a larger share of the crop's value is absorbed by shipping costs. In addition, slower grain movement can increase storage needs and widen basis levels.
Growing export demand could further strain the transportation network. USDA projections indicate that U.S. grain and oilseed exports will increase by approximately 9% by 2035, with much of the growth expected in corn and soybean exports.
One of the biggest barriers to replacing aging barges is cost. Steel, labor, financing, and material expenses have increased significantly in recent years. The cost of constructing a new hopper barge has risen from roughly $650,000 a decade ago to more than $1 million today.
“The U.S. is facing a barge retirement wave. Tighter barge availability raises freight rates and weakens grain basis levels paid to farmers. When barge freight rises, elevators often bid less aggressively for grain because more of the export value is absorbed by transportation costs,” said Tanner Ehmke, lead grains and oilseeds economist with CoBank.
He added, “Higher transportation costs also delay grain movement, forcing more grain into storage and widening basis and carries. Ultimately, that will lead to deferred grain shipments to relieve short-term pressure on freight demand.”
Many operators continue relying on older vessels because freight rates have not increased enough to justify large-scale fleet replacement. As a result, companies are focusing on extending the life of existing assets rather than significantly expanding fleet capacity.
Weather-related disruptions present another concern. Low water conditions on the Mississippi River have repeatedly limited barge loading capacity and reduced to tow sizes. These restrictions slow transportation efficiency and increase operating costs throughout the supply chain.
Infrastructure challenges also remain a significant issue. Aging locks and dams across the inland waterway system require continued maintenance and investment. Delays caused by aging infrastructure can reduce efficiency and impact the movement of agricultural products.
Federal lawmakers have proposed investments through the Water Resources Development Act of 2026, which could provide more than $6 billion for ports, waterways, and related infrastructure improvements. Supporters believe such investments could improve reliability and strengthen the transportation network.
Although railroads provide an alternative transportation option, experts note they cannot fully replace river barge capacity due to equipment limitations, terminal constraints and export facility bottlenecks. Barges remain one of the most efficient methods of moving large volumes of grain to export markets.
With demand expected to grow and transportation challenges intensifying, industry leaders say continued investment in vessels and infrastructure will be critical to maintaining the efficiency of the U.S. agricultural export system.
Photo Credit: CoBank-Current Data LLC