In August 2023 floods destroyed roads and bridges in Slovenia, and the government asked for twenty prefabricated temporary bridges through both the EU Civil Protection Mechanism and NATO’s Euro-Atlantic Disaster Response Coordination Centre. Fourteen bridges arrived from six countries. The first German structure at Prevalje had to be lengthened on site because the ground at a planned bearing could not carry it, and the last deliveries were made in late October, more than two months after the request. The episode exposes a problem that counting modular bridges does not capture. A structure held in a depot becomes a reopened road only when site engineering, foundations, lifting equipment, trained crews, transport, verification and a decision by the competent authority are available at the same time. The rules of the European Civil Protection Pool, recast in April 2025, define a Bridges capacity as a package of people, equipment and logistics, with a goal of two such capacities simultaneously available for deployment, while France and Norway maintain national reserves under different divisions of responsibility. What remains unresolved is how many links Europe could restore to an authorised use at the same time, and whether the public record allows that number to be measured.