The Norwegian Fv946 is one of the steepest roads in the world

The Norwegian Fv946 is one of the steepest roads in the world

Norway, europe

Length

5.4 km

Elevation

N/A

Difficulty

extreme

Best Season

Year-round

# Fv946 (Tronåsen): Norway's Gnarliest Mountain Drive

If you're craving an adrenaline-pumping road trip, buckle up—Norway's Fv946 might just be your ultimate challenge. Nestled between Rogaland and Vest-Agder counties in southern Norway, this legendary route sits at the northern tip of Lake Lundevatnet and will test even the most confident drivers.

We're talking about one of the steepest roads on the planet here. With gradients hitting 25-33%, this isn't your average Sunday cruise. The road demands respect—weak engines and dodgy brakes have no business here. Seriously, some cars actually need to reverse up sections because forward gears just don't cut it. That's the kind of intense you're signing up for.

The numbers alone tell the story: just 5.4 km (3.35 miles) of pure, concentrated mayhem. Starting from a parking area along E39 (complete with facilities), it climbs to Bakke Bro, a stunning 1844 suspension bridge spanning the River Sira. The route is narrow—only 2.5 to 3.5 meters wide—and twists through 11 wickedly sharp hairpin turns. The pavement exists, sure, but it's seen better days.

Here's the history kicker: this road has been connecting travelers since 1791 and was officially paved in 1844 as part of the Western Highway. It was originally built for horse transport (imagine that!) and was such a proving ground it earned a spot in the 1931 Rally Monte Carlo.

Fair warning: it's only open to regular cars May through September. Large vehicles, caravans, and trailers? Not happening—ever.

Where is it?

The Norwegian Fv946 is one of the steepest roads in the world is located in Norway (europe). Coordinates: 63.8640, 12.1801

Share this road

Road Details

Country
Norway
Continent
europe
Length
5.4 km
Difficulty
extreme
Coordinates
63.8640, 12.1801

Related Roads in europe

How dangerous is the tunnel at Lac de Mauvoisin?extreme

How dangerous is the tunnel at Lac de Mauvoisin?

🇨🇭 Switzerland

Deep in the Val de Bagnes, nestled in the Swiss Alps, lies the Mauvoisin Dam—home to one of the most unique and atmospheric tunnel experiences you'll ever encounter. Forget manicured tourist trails; this is raw, unpolished adventure through the heart of the mountain. Before you plunge into darkness, take a moment at the sobering memorial near the main tunnel entrance. It honors the workers who risked their lives building this incredible dam. Once you pass, the pavement ends, and the real journey begins. These aren't your typical tourist tunnels. These rough-hewn galleries were built for dam maintenance, but now they beckon the bold. **Road Lowdown:** * **Location:** Val de Bagnes, Valais, Switzerland * **Elevation:** 1,976 m (6,483 ft) at the dam crest. * **Lighting:** Zero. Total darkness. Bring serious lights! * **Surface:** Rough rock and unpaved gravel. Expect slippery conditions. Driving (or biking!) through these galleries is not for the faint of heart. We're talking complete and utter darkness the second you enter. Water drips constantly from the ceiling, adding to the slick and unpredictable gravel floor. Trust me, high-powered lights aren't just recommended; they're essential for survival. The tunnels themselves are narrow, barely wide enough for maintenance vehicles. Motorized access is restricted, but brave mountain bikers and hikers can tackle this legendary route. And then there are the *fenêtres*: massive, unprotected openings in the tunnel walls that offer dizzying views of the turquoise lake hundreds of meters below. No safety glass, no modern railings, just the raw edge of the mountain between you and a serious drop. The main gallery stretches for about 400 meters from the dam crest before spitting you back out into the open air—only to plunge you into more tunnels. The air inside is frigid, even in summer, and the constant dripping creates an eerie echo. A steady hand and a strong stomach are definitely required. Heads up: This is high-altitude territory (almost 2,000 meters!), so the road to the dam and tunnels is usually snowed in during winter. Aim to visit between late June and early October. **Beyond the Dark: The Reward of Pont du Lancet** Made it through the tunnels? The adventure isn't over! The track continues along the lake's eastern shore, leading you to the Pont du Lancet. This bridge connects the lake's shores and marks the transition from dam infrastructure to wild, high-altitude terrain. Getting to the Pont du Lancet is a test of endurance. The path is exposed and prone to rockfalls. The bridge sits in a dramatic basin where glacial meltwater rages below during the spring thaw. It’s the only way to cross and ascend towards the Cabane de Chanrion or circle back along the western bank. The atmosphere here is different. Colder, with the silence broken only by waterfalls. Shadows from the Combin massif mean little sunlight, and ice can linger even in summer. The Pont du Lancet is the ultimate turnaround point, offering a raw, unfiltered glimpse of the Swiss Alps.

How to get to Stwlan Dam in Wales?hard

How to get to Stwlan Dam in Wales?

🇬🇧 Wales

Okay, adventurers, picture this: you're in Gwynedd, Wales, ready for a climb up to Llyn Stwlan, a mountain reservoir perched 1,679 feet high. This isn't just any drive; it's a winding, paved ribbon snaking up to the Ffestiniog Power Station in Snowdonia National Park. The road itself is a tight 1.8 miles from Tanygrisiau, packed with eight hairpin turns that'll keep you on your toes. Keep in mind that private vehicles aren't allowed and you might need snow chains or tires depending on the weather. But trust me, the views are worth the effort. Once you're up there, the Moelwyn range and Vale of Ffestiniog will knock your socks off. Llyn Stwlan, once a small lake, now acts as the upper reservoir for the power station, with water plunging a thousand feet to generate power. The climb is intense, with some sections hitting an 18.4% gradient, gaining 279 meters in just 1.8 miles! It's steep, averaging around 9.65% — but the payoff is epic!

Is the road through Hoz de Llanaves paved?hard

Is the road through Hoz de Llanaves paved?

🇪🇸 Spain

Get ready for an epic canyon drive in León, Spain! The Hoz de Llánaves is tucked away in the Parque Regional de la Montaña de Riaño y Mampodre, in the northwestern corner of Castile and León. Carved by the Arroyo del Naranco stream, this stretch of the N-621 will leave you breathless. The twisty, winding section between Portilla de la Reina and Llánaves de la Reina is the real heart-pumper, clocking in at just under 3 miles. Now, this isn’t your average Sunday drive. While the road is paved, it's seriously narrow and full of hairpin turns! Keep your eyes peeled for potential rockslides and icy patches. Seriously, check the weather before you go; you don't want to get caught off guard! But trust me, it's SO worth it. The canyon walls are splashed with amazing yellows and greens from all the lichen, giving everything a surreal glow. There’s even a sulfurous spring with a cool history – people used to swear by its healing powers! Plus, you'll be cruising along a branch of the legendary Camino de Santiago. It's more than just a drive; it's an experience!

How to Get to Konigshaus am Schachen in Bavaria?moderate

How to Get to Konigshaus am Schachen in Bavaria?

🇩🇪 Germany

# Königshaus am Schachen: Bavaria's Alpine Retreat Tucked away in the Bavarian Alps near the Austrian border sits Königshaus am Schachen, a charming wooden castle perched at a stunning 1,863 meters (6,112 feet) above sea level—making it one of Germany's highest accessible roads. Built between 1869 and 1872 for King Ludwig II, this two-story Swiss chalet-style retreat was designed by Georg Dollmann and remains a protected monument today. Contrary to its reputation as a hunting lodge, Ludwig II actually had zero interest in hunting, which makes you wonder what he was really up to up here! The modest exterior (by Ludwig's extravagant standards) features charming wooden shutters and ornate balcony railings that feel surprisingly understated compared to his other architectural wild cards. But there's more to this mountain than just the castle. At the summit sits the Alpengarten auf dem Schachen, a one-hectare alpine botanical garden at 2,000 meters that's absolutely worth the trek. Open daily from 8 AM to 5 PM during summer months (with a small admission fee), it showcases 42 plant beds featuring species from mountain ranges across the globe—from the Bavarian Forest to the Himalayas to Patagonia. The unique limestone and dolomite geology creates fascinating soil conditions that support this incredible botanical diversity. Getting there? The road is completely unpaved and closed to regular vehicles, but it's doable with a sturdy 4x4. Just note: it's typically impassable from October through June, so plan your visit for the warmer months when the mountain decides to cooperate.

The Norwegian Fv946 is one of the steepest roads in the world - Norway - RoadScout