E45 Motorway Shuts Down for 18 Hours Saturday

Femi Ajakaye

August 15, 2026
3:02 pm

Denmark’s busiest north-south artery closes for 18 hours this weekend as crews demolish a 38-year-old bridge weighing over 2,300 tons near Horsens, forcing thousands of drivers onto detours during peak holiday traffic.

The E45 motorway shuts down completely between junction 58 Hedensted and 56b Horsens C from 3pm Saturday to 9am Sunday. Vejdirektoratet warns drivers to expect serious delays, especially in the first hours after the closure kicks in. The old Vestvejen bridge comes down as part of the ongoing widening of the E45 from four to six lanes between Vejle and Skanderborg.

I’ve driven this stretch more times than I can count. It’s the spine of East Jutland, packed with commuters, trucks and tourists year-round. A closure like this doesn’t just inconvenience a few travelers. It reroutes an entire regional traffic flow through small towns and two-lane roads that were never designed for the load.

Detours and delays

Traffic diverts onto the old main road, routes 451, 170 and 52, skirting south around Horsens. Special signs will guide drivers heading to Billund Airport through Hatting and Korning. Vejdirektoratet project manager John Kjærsgaard says the first two hours are typically the worst. If you can wait until late Saturday night or Sunday morning, you’ll save yourself a lot of frustration.

The advice makes sense, but it assumes flexibility most people don’t have. Families coming back from summer houses, airport runs, shift workers, logistics drivers on tight schedules. Not everyone can just reschedule.

Why now

The bridge demolition is one piece in a multi-year puzzle. Vejdirektoratet is replacing or expanding dozens of overpasses along the E45 to accommodate the wider profile. They’ve already removed a 980-ton bridge south of Skanderborg. More closures are scheduled at Hedensted, where the Gesagervej bridge is coming down later this month, leaving a three-week gap before a new crossing opens.

The motorway expansion is driven by congestion and safety concerns. E45 carries huge volumes of both passenger and freight traffic. Adding lanes is supposed to ease bottlenecks and reduce accidents. But the short-term cost is a summer of rolling disruptions, speed limits and detours that test patience across the region.

A region under construction

This isn’t an isolated event. Multiple stretches of E45 are under construction simultaneously. Ramps near Aarhus N are closed until September. Nighttime work continues at Hørning and Aarhus S, where the Torshøjvej bridge is being expanded. Further south, repairs on the Elbodal bridge between Fredericia and Vejle reduce traffic to one lane each direction on weekends, with speeds dropped to 80 km/h or even 50 km/h during night shifts.

For anyone living or working in this corridor, the pattern is clear. You can’t just hop on the E45 and assume a smooth ride anymore. You have to check conditions before you leave, factor in extra time and be ready for last-minute changes.

Impact on daily life

Commuters from Hedensted and Horsens face tough choices this weekend. Take the long way around or stay home. Local businesses that rely on motorway access, from logistics hubs to tourism operators, will feel the squeeze. Freight companies have already flagged the closure in trade media, noting the cost in fuel, driver hours and missed delivery windows.

Holiday traffic adds another layer. August is still peak season for families traveling to and from Jutland’s coast and summer-house areas. Billund Airport sits right in the middle of the affected zone. Anyone flying in or out this weekend should budget an extra hour, minimum.

Living here as an expat, I’ve learned that Denmark’s infrastructure is generally excellent but unforgiving when it breaks down. There’s less redundancy than you might expect. One major closure can ripple across an entire region because the alternatives are limited. The detour routes through southern Horsens will be jammed. Side streets will clog. Locals will sit longer at intersections, breathing exhaust and wondering why their quiet neighborhood suddenly feels like a transit corridor.

Long-term gain, short-term pain

Vejdirektoratet frames this as necessary modernization. A six-lane E45 will handle more traffic, reduce congestion and improve safety. That’s the theory. In practice, road expansions can also induce more driving, a phenomenon planners call “induced demand.” Build it and they will come. Whether Denmark’s motorway network needs to grow or whether investment should shift to rail and public transit is a debate that rarely surfaces in official press releases.

What’s certain is that for the next few years, the E45 will be a construction zone. Drivers need to adjust expectations, plan ahead and accept that the old certainties of Danish road travel are on hold. This weekend’s closure is just one chapter in a much longer story.