How to drive the Single Lane Tunnels/Bridges of Iceland?
In Iceland, some tunnels and bridges have only one lane, especially in rural areas. While they are not numerous, it's important to remember the rules before driving through them. The key thing to know is how to handle oncoming traffic. If you're in a tunnel and there's a passing place on your right, you must pull over to allow the other vehicle to pass.
General rules for Single Lane Tunnels
Passing Places
Single-lane tunnels in Iceland include frequent passing places, marked spaces where vehicles can pull over to allow oncoming traffic to pass. Passing places are usually spaced around every 100-150 meters, allowing drivers to pull to the side when they encounter an approaching vehicle. In single-lane tunnels, right-of-way rules are very specific. The vehicle closest to a passing place generally pulls over, but in practice, if the passing place is on your side (right side of the road), you are required to stop to let the oncoming vehicle pass. In many cases, signage or lights at the tunnel’s entrance will indicate right-of-way and give instructions for drivers.
Low Speed and Caution
Due to the narrow space and possible oncoming traffic, speed limits are strictly enforced, and drivers must go slowly.
Lighting and Visibility
Some of these tunnels are equipped with good lighting, but visibility can still be challenging due to their narrow and confined structure. Drivers should enter slowly, keep their headlights on, and be prepared to yield.
Not Suitable for All Vehicles
Iceland’s single-lane tunnels are typically built for standard-sized vehicles. Large trucks or buses might find them challenging, and some rental car agencies advise tourists to avoid certain single-lane tunnels, particularly in winter.
Most famous Single-Lane Tunnels in Iceland
Múlagöng
Connecting Dalvík and Ólafsfjörður in northern Iceland, this single-lane tunnel is about 3.4 kilometers (2.11 miles) long and includes several passing points along its length. Opened in 1990, it allows traffic to pass safely in an otherwise mountainous area.
Strákagöng
Located near Siglufjörður in North Iceland, this tunnel is 800 meters (0.5 miles) long. Built in 1967, it’s a single-lane tunnel where drivers often encounter oncoming traffic. Proper passing etiquette and attention to passing areas are essential for a smooth drive through this tunnel.
Arnardalshamar
Iceland’s first tunnel, located in the Westfjords, is only 30 meters (98 feet) long and has two lanes, though it is narrow. It connects Ísafjörður and Súðavík and is an interesting historical landmark as Iceland's first tunnel built in 1948.
Single-Lane Bridges
Iceland also has one-lane bridges, and the rule here is that the car closest to the bridge has the right of way. After that, vehicles on each side take turns crossing.