A9 Como-Chiasso: Highway Closed at Night for Cross-Border Workers (cross-border guide)

Di Valerie Linc · Published on

New inconveniences for cross-border workers: the A9 between Como Centro and Chiasso will be closed at night on March 3 and 4, 2026, for exceptional transport, and daytime construction sites will resume.

Contesto

TL;DR - A9 highway nighttime closure March 3-4, 2026 - Daytime construction resumes March 2, 2026 - Expect 30% longer waits at Brogeda customs - Lane diversions planned for Fati viaduct ## Key facts - Highway affected: A9 Lainate-Como-Chiasso - Night closure date: Tuesday, March 3 to Wednesday, March 4, 2026 - Night closure time: 10:00 PM to 5:00 AM - Daytime work start: Monday, March 2, 2026 - Brogeda delay est.: 30% increase in waiting times - Peak lane opening: 5:00 AM to 10:00 AM towards Switzerland - Peak lane opening: 4:00 PM to 7:00 PM towards Lainate/Milan - Shuttle cost est.: 150,000 CHF per year Bad news for the thousands of cross-border workers who cross the border between Italy and Switzerland every day to reach Canton Ticino: the A9 Lainate-Como-Chiasso highway will be affected by new nighttime closures and the resumption of daytime construction work. Autostrade per l'Italia has announced that, to allow for the passage of exceptional transports, the stretch between Como Centro and Chiasso heading north will be completely closed from 10:00 PM on Tuesday, March 3, to 5:00 AM on Wednesday, March 4, 2026. This targeted interruption will require a mandatory detour for everyone intending to cross the Brogeda customs during those hours. After the forced exit at the Como Centro interchange, vehicles will have to use the ordinary roads towards Chiasso, entering the city customs. This alternative, while necessary, is notoriously slower and subject to congestion, especially during times when freight traffic and nighttime commuters are present. During the closure, it is estimated that waiting times at the Brogeda customs could increase by 30%, forcing cross-border workers to carefully plan their movements. The news, reported by Ticinonline on March 1, 2026, adds to...

Dettagli operativi

But the challenges for cross-border workers don’t end there. As if the extraordinary nighttime closure wasn’t enough, daytime construction sites will also resume on Monday, March 2, 2026, extending the period of traffic disruptions. The interventions particularly concern the Fati viaduct, strategically located before the Monte Quarcino tunnel and the Lake Como exit. These works, focused on the rehabilitation of the pavement and the implementation of a new platform drainage system, will involve a lane diversion in both directions, reducing traffic to a single lane in each direction. This operational mode has been designed to try to mitigate the impact on traffic, but experience shows that even a single lane can generate long queues, especially during peak hours. Autostrade per l'Italia has, however, specified that the construction site can be adjusted during the day, based on traffic flow analysis and estimated travel times. A dynamic management system is expected to ensure, during the most critical hours, the passage on two lanes of traffic. Specifically, between 5:00 AM and 10:00 AM, two lanes will be open towards Switzerland, while from 4:00 PM to 7:00 PM, two lanes will be available towards Lainate/Milan. This optimization attempt is crucial for commuters, but it still requires attention and flexibility. For instance, according to 2023 statistics, the traffic of cross-border workers coming from municipalities like Mendrisio and Chiasso has recorded a 15% increase, leading to about 40,000 daily crossings during peak hours. Cantonal and local authorities, while having no direct say in the management of Italian infrastructure, are constantly monitoring the situation. The Municipality of Chiasso has suggested implementing a shuttle service to alleviate the burden on pu...

Punti chiave

In the face of these ongoing interruptions and slowdowns, the watchword for cross-border workers is planning. It is no longer sufficient to rely on routine; it is imperative to regularly consult real-time traffic information sources, such as navigation apps (Waze, Google Maps) or dedicated commuter channels. Leaving with ample time, especially on days and times indicated for nighttime closures, like those scheduled for March 15 and 22, 2026, or for the intensification of daytime construction, can make the difference between arriving on time and experiencing a stressful delay. Consider alternative routes, although they may often be longer or more winding. For example, using the state road 340 Regina or the route to Chiasso can be useful, but it is essential to evaluate their conditions in advance. Recent research indicates that, on average, the journey from Lugano to Chiasso can take up to 45 minutes during peak hours, while through populated areas, the time can increase to 1 hour and 15 minutes in case of congestion. Closures and construction on the A9 are not isolated events but part of a context of ongoing maintenance and infrastructure development. For example, works to enhance the highway network, which include an investment of about 5 million Swiss francs, require commuters to make additional adjustments. To monitor the impact of these disruptions on your travel times and the costs associated with cross-border commuting, we invite you to use our Commuter Transport Calculator. This tool will help you quantify the economic and time impact of your movements. ### Operational Checklist for Cross-Border Workers: - Traffic Check: Consult navigation apps before leaving. - Early Departure: Consider leaving at least 30 minutes earlier than usual. - Alternative Routes: Ch...

Punti chiave

[{"q":"When will the A9 Como-Chiasso highway close at night in 2026?","a":"The Como Centro-Chiasso section of the A9 northbound will close from 10:00 PM on Tuesday, March 3rd, to 5:00 AM on Wednesday, March 4th, 2026. The closure is due to exceptional transport and will require a mandatory detour onto local roads after the Como Centro exit, with an estimated 30% increase in wait times at the Brogeda border crossing."},{"q":"What are the new construction sites on the A9 for cross-border commuters starting March 2026?","a":"Starting Monday, March 2nd, 2026, daytime construction work will resume on the Fati viaduct, before the Monte Quarcino tunnel, for pavement rehabilitation. This will involve a lane diversion with only one lane per direction. However, between 5:00 AM and 10:00 AM, two lanes will be open towards Switzerland, and between 4:00 PM and 7:00 PM, two lanes will be open towards Lainate/Milan."},{"q":"How can cross-border commuters avoid delays on the A9 with the new construction sites?","a":"To minimize delays, it is crucial to plan your trips well in advance. It is advisable to leave at least an hour earlier than usual for strict work schedules, monitor real-time navigation apps (e.g., Waze, Google Maps), and consider using public transport. Wait times at the Brogeda border crossing may increase by 30%."},{"q":"Are there preferential lanes for cross-border commuters on the A9 during daytime construction?","a":"During construction on the Fati viaduct, traffic management will be dynamic. During peak hours, Autostrade per l'Italia will ensure the opening of two lanes: from 5:00 AM to 10:00 AM towards Switzerland and from 4:00 PM to 7:00 PM towards Lainate/Milan. At other times, traffic will be reduced to a single lane per direction."}]

Frequently Asked Questions
When will the A9 Como-Chiasso highway close at night in 2026?
The Como Centro-Chiasso section of the A9 northbound will close from 10:00 PM on Tuesday, March 3rd, to 5:00 AM on Wednesday, March 4th, 2026. The closure is due to exceptional transport and will require a mandatory detour onto local roads after the Como Centro exit, with an estimated 30% increase in wait times at the Brogeda border crossing.
What are the new construction sites on the A9 for cross-border commuters starting March 2026?
Starting Monday, March 2nd, 2026, daytime construction work will resume on the Fati viaduct, before the Monte Quarcino tunnel, for pavement rehabilitation. This will involve a lane diversion with only one lane per direction. However, between 5:00 AM and 10:00 AM, two lanes will be open towards Switzerland, and between 4:00 PM and 7:00 PM, two lanes will be open towards Lainate/Milan.
How can cross-border commuters avoid delays on the A9 with the new construction sites?
To minimize delays, it is crucial to plan your trips well in advance. It is advisable to leave at least an hour earlier than usual for strict work schedules, monitor real-time navigation apps (e.g., Waze, Google Maps), and consider using public transport. Wait times at the Brogeda border crossing may increase by 30%.
Are there preferential lanes for cross-border commuters on the A9 during daytime construction?
During construction on the Fati viaduct, traffic management will be dynamic. During peak hours, Autostrade per l'Italia will ensure the opening of two lanes: from 5:00 AM to 10:00 AM towards Switzerland and from 4:00 PM to 7:00 PM towards Lainate/Milan. At other times, traffic will be reduced to a single lane per direction.

Related articles