A8 and A9 night work: closures and alternative routes

Context

TL;DR

• A8 closed between Castellanza and Fiera toward Milan
• Legnano: entrance closed in both directions for two nights
• A9: branch toward Milan closed from Chiasso/Como
• Lainate: exit closed from Varese between October 15 and 16

Key facts

• Works → maintenance of the safety barriers
• Affected motorways → A8 Milan-Varese and A9 Lainate-Como-Chiasso
• Connecting road → SC5 Varese-Gazzada Road
• First time slot → 20:00-5:00, night between October 13 and 14
• A8 section → Castellanza-Fiera Milano, towards Milan
• Legnano entry → closed 21:00-5:00, nights of October 13 and 14
• Lainate exit → closed 21:00-5:00, night between October 15 and 16
• Alternative → SS527, SS33 and A52

Between 20:00 on Tuesday, October 13, and 5:00 on Wednesday, October 14, the first change concerns the Villoresi west service area. The area, on the stretch between Lainate and northern Milan, will be closed to those traveling towards Milan.

That same night, from 22:00 to 5:00, on the A8 Milan-Varese, the stretch between Castellanza and Fiera Milano will be closed, also in the direction of Milan. The mandatory exit is at Castellanza; the indicated alternative route follows the SS527 and SS33 towards Milan, as far as the Fiera interchange. From there, it is possible to join the A52 Milan North Ring Road, heading towards Monza, Milan or Venice.

During the same time slot, the Origgio west exit will also be closed to those arriving from Milan. The indicated alternatives are the Legnano exit on the same A8, or Uboldo on the A9 Lainate-Como-Chiasso.

For those arriving from Chiasso or Como, the measure on the A9 concerns the slip road joining the A8 Milan-Varese towards Milan. The first alternative is to exit earlier at Saronno, continue along the SP527 Bustese towards Rescaldina and Castellanza, then enter the A8 at Castellanza. The second involves a mandatory diversion onto the A8 towards Varese, exiting at Legnano and rejoining via the same interchange towards Milan.

Closures related to maintenance

On the A8 and the SC5 Varese-Gazzada Road, the schedule calls for the Legnano entry to be closed in both directions from 21:00 to 5:00 on the nights of Tuesday, October 13, and Wednesday, October 14. To reach Milan, the indicated alternative is Lainate-Arese, while for Varese it is Castellanza.

Between 21:00 on Thursday, October 15, and 5:00 on Friday, October 16, the Lainate exit will not be available to those arriving from Varese. It will be possible to take the earlier exit at Legnano or continue towards Milan, join the A50 West Ring Road and exit at the SS33 del Sempione interchange. The measure is part of the maintenance of the safety barriers. To find one's way among the affected points, one can consult mappa dei valichi together with the closure schedule.

Operational details

The most critical point for a cross-border commuter traveling on the A9 from Chiasso/Como toward Milan is not an indistinct closure of the motorway, but the connection with the A8. The distinction matters: the source identifies the merging branch and indicates two different sequences. In the first, drivers take the Saronno exit and reach Castellanza via the SP527 Bustese; in the second, they follow the detour toward Varese, take the Legnano exit and re-enter via the same interchange in the direction of Milan.

To read the schedule without conflating the measures, it is useful to separate time, direction and type of access. The Villoresi ovest service area closes from 20:00, while the Castellanza-Fiera section and the Origgio ovest exit are affected from 22:00. The Legnano entrance closes from 21:00 in both directions. On the night between Thursday and Friday, however, the point to avoid is the Lainate exit for those arriving from Varese.

The choice depends on direction and access

| Situation | Practical reading | | A9 from Chiasso/Como toward Milan | The connection toward A8 is closed; the source indicates Saronno-SP527-Castellanza or Legnano after the detour toward Varese | | A8 from Milan | Origgio ovest is unavailable; the indicated exits are Legnano or Uboldo | | Entering at Legnano | Toward Milan, use Lainate-Arese; toward Varese, Castellanza | | A8 from Varese | On the night of October 15-16, Lainate is closed; one can take the Legnano exit earlier or use A50 and SS33 del Sempione |

This reading is especially useful for those who need to choose the entry point before setting out. For the route from Chiasso/Como, the decision must be made before reaching the A9-A8 branch: the first alternative leads to Saronno and Castellanza; the second retains the route through Legnano after the detour toward Varese. For the closure of Legnano, on the other hand, the direction determines the alternative. It is not the same choice for Milan and Varese.

An additional check of tempi di attesa ai valichi can help assess the starting situation, but it does not replace the closure schedule, which remains divided across the nights of October 13, 14 and 15. For the cross-border commuter, the decisive factor is therefore the intersection of the affected night and the precise point they intend to use.

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Key points

The most practical way to follow the plan is to turn the instructions into a short sequence. Each measure concerns a specific entrance, exit, stretch or branch.

Departure procedure

1. Mark the relevant window: 20:00-5:00 for Villoresi west, 22:00-5:00 for Castellanza-Fiera, Origgio west and the A9-A8 branch, 21:00-5:00 for the Legnano entrance on the nights of October 13 and 14, 21:00-5:00 for Lainate on the night of October 15 and 16.

2. Define the direction of travel and the access point: toward Milan or Varese, coming from Milan, Varese or Chiasso/Como. The same location may have a different measure for the entrance and exit.

3. If you are arriving from Chiasso or Como toward Milan, prepare one of the two indicated sequences: exit at Saronno, take SP527 Bustese toward Rescaldina and Castellanza, and enter the A8 at Castellanza; or take the detour onto the A8 toward Varese, exit at Legnano and re-enter from the same interchange toward Milan.

4. On the two nights dedicated to the Legnano entrance, do not plan to use that access. For Milan, the indicated alternative is Lainate-Arese; for Varese, it is Castellanza.

5. On the night between Thursday, October 15 and Friday, October 16, if you are coming from Varese, do not rely on the Lainate exit. The main recommendation is to exit earlier at Legnano; the further alternative goes via the A50 western ring road and the SS33 del Sempione interchange.

The closure of the Villoresi west service area between 20:00 and 5:00, on the Lainate-Milan north stretch toward Milan, must also be taken into account. For a cross-border commuter, noting this time slot separately helps avoid confusing it with the closure of the Castellanza-Fiera stretch, which begins at 22:00.

Before setting off, cross-reference the schedule with storico del traffico ai valichi to complete the operational departure check.

First day as a cross-border worker? Our practical guide walks you from cantonal registration to your first paycheck.

Source: varesenoi.it

First day as a cross-border worker? Our practical guide walks you from cantonal registration to your first paycheck.