A13 Cadenazzo Santonino Roadworks 2026 | Frontaliere Ticino
A13 Cadenazzo Santonino Roadworks 2026 — free tools and expert guides for cross-border workers (frontalieri) between Switzerland and Italy. Compare salaries, tax, LAMal health insurance, pensions, and cost of living in Ticino. Updated 2026.
Context
The Canton of Ticino is preparing for a series of major interventions on the A13, connecting Cadenazzo to S. Antonino. The Federal Roads Office (USTRA) has announced that, from March 2 to June 26, 2026, pavement renovation and traffic upgrades will be carried out, divided into two main phases. The works will affect Via San Gottardo in Cadenazzo and the section between Via Serrai in S. Antonino and Via Camoghé in Cadenazzo—key arteries for the connection between Locarno and Bellinzona, and also for cross-border flows towards Lombardy. 📊 Traffic Data: According to USTRA monitoring, more than 18,000 vehicles travel daily on the Cadenazzo–S. Antonino stretch, with about 27% being cross-border commuters, mainly from the municipalities of Como, Varese, and the Novazzano area. Traffic increases by 15% on weekdays, peaking between 6:30–8:30 and 17:00–19:00. > Regulations and Funding: The renovation is part of the upgrades required by the Federal Act on National Roads (LSN, revised 2022), which mandates acoustic standards of 55 dB for residential areas and minimum investments of 3.2 million CHF per section. The Municipality of Cadenazzo has requested an extraordinary contribution of 410,000 CHF for noise mitigation near elementary schools, while S. Antonino has highlighted the need for new noise barriers, scheduled for installation by June 2026. 💡 Operational Checklist for Cross-Border Workers: - Check traffic updates on USTRA and the Municipality of Cadenazzo (from January 15, 2026) - Plan entry/exit times to avoid peak traffic hours - Set up electronic badge for priority access (pilot project on Via San Gottardo) - Consider alternatives: S. Antonino–Gambarogno–Locarno (via A2) during night closures ⚠️ Practical Comparison: During daytime works, traffic will flow in both...
Operational details
From a technical perspective, the planned works on the A13 Cadenazzo–S. Antonino section in 2026 cover several key aspects, focusing on both safety and environmental sustainability. In the first stretch, between the Cadenazzo football field and the Via Monte Ceneri roundabout, pavement renovation will use new-generation sound-absorbing materials. Materials like SMA 8 Silence asphalt allow for a reduction in noise pollution of up to 7 dB compared to traditional surfaces—a significant figure, considering that, according to cantonal monitoring, average daily traffic in this area exceeded 18,500 vehicles in 2023, with 34% being heavy vehicles. The intervention complies with the Federal Act on Protection Against Noise (LPB) of March 1, 1987, requiring infrastructure renovation by 2027 and cantonal contributions up to CHF 1.4 million. Furthermore, preparations are underway for the installation of smart traffic lights at major intersections, such as the one between Via Monte Ceneri and Via Serrai. These systems, equipped with induction sensors and dynamic management software, will ensure better regulation of vehicle flows during peak hours, reducing waiting times by 22% according to data collected in Bellinzona and Locarno, where similar solutions have been in place since 2022. The second phase, between Via Serrai in S. Antonino and Via Camoghé in Cadenazzo, involves widening the carriageway with the addition of an emergency lane and illuminated signage. This upgrade aims to increase safety, in line with the Road Signage Ordinance of January 1, 2019, and ensure greater traffic fluidity, especially for the roughly 7,300 cross-border commuters who travel daily between Gambarogno, Monteggio, and Chiasso. Operational checklist: - Pavement replacement (SMA 8 Silence) - Installat...
Key points
For cross-border workers and Ticino drivers, the renovation works on the A13 between Cadenazzo and S. Antonino planned for 2026 will be a decisive factor in daily travel planning. In the area between Cadenazzo, Gudo, and S. Antonino, around 27,000 vehicles pass each day, with over 30% coming from Italy, and traffic peaks between 7:00 and 8:30 can see increases of up to 20%. Similar works, like the 2021 Monte Ceneri project, showed that travel times can rise by up to 18 minutes during rush hours. ## Operational checklist for cross-border workers - Monitor USTRA updates and announcements from the Municipalities of Cadenazzo and S. Antonino, which regularly publish schedules and detours. - Check time slots with alternating lanes: for these works, from 21:00 to 5:00, traffic will run on a single lane in each direction. - Plan alternative routes, such as the Gambarogno–Locarno cantonal road, for those living in Bellinzona, Biasca, or Lavena Ponte Tresa. - Consider the economic impact: a cross-border worker with a net salary of CHF 3,000 per month (about €3,100), experiencing an average delay of 30 minutes a day for 20 days, loses around CHF 125 in monthly productivity (hourly calculation). ## Regulations and practical references > From January 1, 2024, with the revision of the Federal Act on National Roads (LSN), work sites on cross-border sections must be notified at least 14 days in advance to registered cross-border workers in border municipalities such as Mendrisio, Chiasso, and Stabio. Fines for violating temporary detours start at CHF 100. ## Scenario comparison 📊 If traffic remains normal, the Cadenazzo–S. Antonino journey takes 12 minutes. During works with alternating lanes, this can rise to 25 minutes. A worker leaving from Verbania and crossing the Magadino...