Annual medal for the third year of Clement XI's pontificate, commemorating the inauguration of the new aqueduct at Civitavecchia. In addition to this annual medal by Saint-Urbain, a larger medal by Giovanni Hamerani was also produced to commemorate this aqueduct.

Work had begun under Innocent XII to build an aqueduct to provide water to the port and city of Civitavecchia. The undertaking to carry water from Allumiere traced the ancient aqueduct of Trajan and covered over twenty miles. After Innocent's death, Clement XI continued the project and set aside the funds needed to complete the work. He entrusted the direction of the project to Cardinal Benedetto Pamphili, who had already directed the aqueduct work at the Port of Anzio. On November 22, 1702, the project was complete and water gushed forth from the fountain in the port.