Starting from 22 October 2025 and until 10 September 2028, the SS685 NSA27 - Delle Tre Valli Umbre will undergo a major change in traffic due to scheduled maintenance works. An alternating one-way system will be implemented in the section that goes from the intersection with the SS4 of Arquata del Tronto to the SP477 roundabout.

These works could cause delays and inconveniences to traffic. Motorists are therefore invited to pay particular attention to the signs on site and to respect the instructions of the workers, in order to guarantee their own safety and that of other road users.

Details:

• Location: SS685 NSA27 - Delle Tre Valli Umbria
• Affected section: SS4-Arquata del Tronto intersection and SP477 roundabout
• Work start date: 22 October 2025
• Completion date: 10 September 2028
• Traffic: Alternate one-way traffic

It is recommended to plan your journeys taking these works into account, and to use alternative routes if possible to avoid congestion. The Traffic Police and local authorities will be available to provide further guidance and information.