10 Insane and Highly Dangerous Roads or Causeways Running Across the Sea

Can you imagine yourself walking along a thin narrow strip of road running across a sea or an ocean, waves lashing your feet and threatening to wash you away any moment? There are dangerous roads and bridges around the world but even more breathtaking and dangerous are narrow roads running across the sea called causeways. Unlike bridges, causeways are just a few feet above sea level or built on embankments where quite a number of them are notorious for being covered by the sea at high tide. One moment you find a never ending stretch of road and in the next, there’s only water. Here are ten of the most dangerous causeways or dangerous sea roads in the world.

1. Väinatamm, Estonia causeways

Väinatamm is the largest causeway in Estonia operational for 120 years. It is considered as one of the most dangerous causeways in the world connecting the Island of Muhu and Saarema to the continent. The sea road was opened in 1896 and cut down the travel time between the locations by half.  Incidentally the causeway was the scene of intense battle during operation Albion in 1917. German bicycle troops thronged the causeway to try and secure Muhu Island while surrounding retreating Russian soldiers.

2. Colchester Causeway, USA causeways

The Colchester causeway is one of the most scenic causeways running for 12 miles along the edge of Lake Champlain (Vermont). It connects to the North through Colchester onto the causeway extending from downtown Burlington and is part of the Great Island Line Trail in Vermont.

3. Låningsvejen, Denmark causeways

Mando is an island in the Danish Wadden Sea just off the southwest Coast of Jutland. At high tide it is barely accessible through an unpaved 4 km road running across the sea and connecting the island to the main land.  Only two tractors are allowed to use this road which is used to carry tourists and school children to and from the Island.

4. Rough Island Causeway, UK causeways

The Rough Island causeway connects Rough Island to the Scottish Mainland and is completely submerged underwater for five hours every day. The Island is a bird sanctuary which attracts visitors daily however you have to take in account the high tide before going there.

5. Causeway between Jindo and Mondo Islands, South Korea causeways

The biggest attraction of this immensely popular tourist attraction despite of it being dangerous is the local phenomena named “Moses Miracle” when a land pass just 2.9 km wide opens up for about an hour between Mondo and Jindo Islands. The natural causeway is spectacular event which occurs just twice a year in April-June; it is even celebrated as a sea festival named “Jindo’s Sea Way”.

6. Funafuti Causeway, Tuvalu causeways

The Funafati causeway, Tuvalu, Australia was built only 4 .5 meters above sea level. One section of Funafati is extremely narrow for a road making travel extremely dangerous hence the causeway was built as a concrete section to facilitate transport during World War II. The stretch is an important connection between two of the major islands being Fugafale and Tegako.

7. Passage du Gois, France causeways

This is one of the most dangerous causeways in the world which you will find flooded the entire year through. The road is a famous tourist attraction leading to the Island of Noirmouteir in France and located between Noirmoutier and Beauvoir Sur Mer in the department of Vendee. To make it across, you will have to ensure your there by low tide as the road is flooded over twice a day by the high tide.

8. Hindenburg Dam, Germany causeways

The 11 km long Hindenburg Dam is a causeway joining the North Frisian Island of Sylt to the mainland. Over 50 trains pass across the causeway every day transporting cars as it is the only link to Sylt. The southern part of the causeway has lost a considerable amount of land to rising tides.

9. Great Salt Lake Causeway, USA causeways

Running across the Great Salt Lake in Utah is a raised causeway which was built in 1950 by the Union Pacific. As a 20 mile stretch across the huge lake, the most spectacular feature of the causeway are the two contrasting shades of water separated by the causeway on either side.  One side is blue and the other has a reddish tint caused by different species of algae.

10. Crammond Island, Edinburgh Scotland causeways

The Crammond Island causeway is one of the gets covered by the sea during high tide. Crammond Island is one of several Tidal islands in the Firth of Forth in Eastern Scotland connected to the mainland by a paved path across the drum sands negotiable during low tide. A row of concrete pylons along the causeway was constructed during WWII as anti boat boom and is the most attractive feature of the natural phenomenon.


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Written by Andrew Alpin

Andrew Kevin Alpin is a senior content specialist from Kolkata, India. With a passion for writing from a very young age, he has 8 years of experience in content writing behind him. Apart from being well versed in several niches, Andrew’s forte is social media stories, news, health, fitness, parenting, entertainment, literature, philosophy, travel and food. With a penchant for writing poetry, he has also published a collection of poems written over years titled “Thy will be Done”. Andrew’s interests include reading, music and collecting occult and spiritual books.

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