Our Draft Survey service is designed to provide shipowners, charterers, and cargo interests with accurate cargo weight determination based on international standards and best practices.
At UPRIVER Marine, we carry out draft surveys in compliance with IMO/ICS procedures, ensuring precision and consistency at both loading and discharging ports. We operate across Argentina, Uruguay, and Brazil—including:
Up River ports (San Lorenzo, Timbúes, Rosario)
Bahía Blanca
Montevideo and Nueva Palmira
Santos, Paranaguá and other Brazilian terminals
Our experienced surveyors take accurate draft readings, apply corrections for trim, density, and hull form, and calculate the actual cargo quantity loaded or discharged, minimizing discrepancies with Bill of Lading figures.
We act as Protecting Surveyors when required, verifying that declared quantities are aligned with what was truly loaded. Our team can also work remotely in coordination with the vessel’s officers if prior presence is not possible, always with the goal of securing your commercial position.
With 24/7 availability, robust reporting, and a commitment to transparency, UPRIVER Marine ensures confidence in every ton.
Ensure accurate bunker delivery with trusted supervision and detailed reporting—protecting your interests at every transfer point.
Verify bunker quantities at the start or re-delivery of a charter with full accuracy and neutrality.
Independent pre-loading inspections to ensure hold readiness and avoid cargo claims or rejections.
Trusted maritime surveying and consulting across Argentina, Uruguay, Brazil, Paraguay and the Paraná–Paraguay Waterway, with coverage in the main US Gulf and East Coast ports and key global ports.
We specialize in bunker quantity surveys, cargo supervision, and regulatory audits, ensuring accuracy, transparency, and peace of mind for shipowners and charterers.
Head Office – Argentina:
US Office:
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