Full Breakdown
Danube Sulina Canal Bottleneck Threatens Ukraine’s Grain Exports
8/28/2026, 2:55:19 AM
The Immediate Crisis
As of August 26, up to 70 vessels were anchored near the Sulina Canal in Romania, awaiting clearance to load grain at Ukraine’s Danube ports. The backlog stems from a shortage of river pilots, frequent air-raid alerts that suspend port operations, and the prioritisation of higher-value cargoes such as fuel. ASAP Agri reported that on August 25 more than 50 vessels were queued while only five to seven ships per day managed to move toward the Ukrainian ports. Each additional day of delay adds roughly $8,000 to a vessel’s freight cost.
Background & Context
Ukraine ships about 90 % of its grain through Black Sea ports. Russian attacks that blocked those ports have forced exporters to reroute shipments through the Danube River system, a route with far lower capacity. The Sulina Canal, a 71.7-km distributary linking the Danube to the Black Sea, can handle only two to three vessels per day for grain.
Data & Statistics
| Metric | Figure | Source |
|---|---|---|
| Vessels waiting near Sulina Canal | up to 70 | traders and analysts (Aug 26) |
| Vessels passing daily (reported) | 5-7 | ASAP Agri (Aug 25) |
| Real traffic capacity for grain vessels | 2-3 per day | Avalon shipping |
| Daily cost of delay per vessel | up to $8,000 | ASAP Agri |
| Grain exported Aug 1-21, 2024 | 539,000 t | Ukraine agriculture ministry |
| Same period 2023 | 1.73 M t | Ukraine agriculture ministry |
| Grain volume to Danube ports (Aug vs July) | 11× higher | Ukrzaliznytsia |
| Peak Danube capacity (2022-23) | 2.5 M t/month | historical data |
Official Statements & Responses
- Yevgen Osypov, CEO of Kernel, warned that the blockade could force Ukrainian farmers to leave about 20 % of arable land unplanted, reducing the 2025 wheat and corn harvest by roughly 12 million tons.
- Katerina Kononenko (Avalon shipping) noted that the Sulina Canal was expected to close for about two days due to poor weather, compounding the setback for grain exporters.
On-the-Ground Reports
Local river pilots and terminal operators say low water levels, exacerbated by a summer drought, force vessels to travel with reduced cargo loads, further slowing throughput. Bulgarian grain producers in the Vidin region report that critically low Danube water levels have blocked shipments, pushing 90 % of their grain into near-full storage facilities and increasing logistics costs by €40-50 per tonne.
Conflicting Reports & Gaps
Sources differ on the exact number of vessels awaiting passage: some describe “up to 70” ships, while others cite “more than 50” as of August 25. All agree that daily movement is limited to single-digit vessels, but precise daily figures vary between consultancy estimates and operator statements. No publicly available data confirm the exact duration of the pilot shortage or the timeline for canal reopening after weather disruptions.
What’s Next
Ukraine’s agriculture ministry warns that storage capacity could be exhausted by early November if export routes remain blocked. Stakeholders are exploring alternative corridors, including rail and road links through Poland, Romania’s Constanta port, and transit agreements with Hungary and Moldova, though these options entail higher transport costs.
Verbatim Quote
- “This is state terrorism. It does not show strength; it shows helplessness. Putin cannot and will not achieve anything on the battlefield. Instead, he is betting on terrorizing our cities, ports, and critical infrastructure,” — Andrii Sybiha, foreign minister
