Hi. The "Declaracion" is just wrong in several key facts. For example, it declares, "Conexiones portuarias: Tendrá conexión con el puerto de Montevideo a partir del 2022 (actualmente en
obra), mientras que las conexiones con los puertos como el de Fray Bentos; Paysandú; Salto; Colonia y La
Paloma en Rocha se encuentran actualmente inactivas.". The rails were removed, bridges were dismantled or not operative, etc. Eg. a road was built over the rails  several years ago in port of La Paloma, same in Colonia, same in Fray Bentos (rail bride was removed) and those are the places that I in saw myself in those places.

Keeping the railways mapped for navigation in some place are important, but the only place that WILL be operating is from the pulp mill to the port. Construction in appropiate right now, but be aware that the layout is being rectified in several places.
for all the rest, probably disused is the better choice.