Strada Statale 73

Strada statale SS73 in Italy
Basic data
Operator:
Regions :	Tuscany Umbria Brands
Strada Statale 73 near Montarrenti, Sovicille municipality
Course of the road historical street course as defined in 1928 (with today's names) Grosseto Province as (former ) Roccastrada Province of Siena as SP 73bis Monticiano (former ) (former ) Sovicille - Rosia (former ) Siena SR 2 (former ) / (former ) as Siena - Taverne d'Arbia (formerly ) (former ) / (former ) as (former ) Arezzo Province Monte San Savino (former ) SR 71 (former) via Arezzo SR 69 (former ) / SR 71 (former ) / (former ) Sansepolcro / (formerly ) Perugia Province San Giustino as Bocca Trabaria (1049 meters) Province of Pesaro and Urbino Borgo Pace Mercatello sul Metauro Sant'Angelo in Vado Urbania Urbino (former ) Fossombrone - Calmazzo

The Strada Statale 73 (SS 73) is an Italian state road that was laid down in two parts in 1928 between the SS 1 near Grosseto - Montepescali and Fossombrone - Almazzo. It goes back to the Strada nazionale (SN) 59 and 63 established in 1923. Because of its leadership via Siena and through the Valico di Bocca Trabaria, the SS 73 received the title Senese-Aretina e di Bocca Trabaria . In 1938 the part San Giustino - Calmazzo (part of the former SN 63) was renumbered to SS 73 bis with the title di Bocca Trabaria and the section from SS 1 to Sansepolcro kept the number SS 73; but from then on only wore Senese-Aretina as a title. The intermediate piece became part of a new side branch of the SS 3 - the " SS 3 to Tiberina ". This has now been graded by relocating the "SS 3 bis" to a parallel expressway to the southwest. The section from Montepescali to Siena was upgraded to a provincial road in 2001. The "SS 73 bis" was extended beyond Calmazzo as an expressway parallel to the "SS 3" to Fano and replaced it as a state road.