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Altenwörth Power Plant – Zwentendorf nuclear power plant loop from Sitzenberg-Reidling

Altenwörth Power Plant – Zwentendorf nuclear power plant loop from Sitzenberg-Reidling

Easy

5.0

(1)

riders

Altenwörth Power Plant – Zwentendorf nuclear power plant loop from Sitzenberg-Reidling

01:08

29.5km

60m

Road cycling

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: April 30, 2026

Waypoints

Start point

Train Station

Get Directions

6.44 km

Roman Gate (Vienna Gate), Traismauer

Highlight • Historical Site

The landmark of the town of Traismauer is the Roman Gate, also known as the Vienna Gate. The Vienna or Roman Gate in its current form dates back to the 16th or 17th century. Remains of the late antique east gate have been preserved up to the second floor. The medieval gate tower in the middle is flanked by two slightly lower horseshoe towers.

Nice little town worth seeing. Traismauer is a town with around 6,500 inhabitants in the Sankt Pölten-Land district. It's worth a detour! 🚴🏻‍♂️

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16.3 km

Altenwörth Power Plant

Highlight • Monument

The Altenwörth power plant is one of the largest run-of-river power plants in Austria. It is located on the Danube in the municipality of Altenwörth and is operated by VERBUND AG. Commissioned in 1976, the power plant has produced approximately 2.1 billion kilowatt hours annually since then, equivalent to the annual energy needs of approximately 600,000 households. The Altenwörth power plant is equipped with a fish pass to ensure the ecological continuity of the Danube. It also plays an important role in flood protection, as the weir can intervene to regulate flooding.

The power plant has a pedestrian and bicycle bridge that allows for safe crossing of the Danube. During the crossing, visitors can enjoy impressive views of the Danube and the surrounding landscape. There are rest areas and information panels providing information about the power plant and the surrounding area.

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17.7 km

Traisen

Highlight • River

shortly before the mouth

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17.8 km

Mouth of the Traisen River at the Danube

Highlight • River

The old estuary of the Traisen is an interesting sight but not as beautiful as the new renatured one!

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18.7 km

View of the Altenwörth Danube Power Plant

Highlight • Viewpoint

From here, where the Traisen flows into the Danube, you have a particularly good view of the dam of the Altenwörth power plant

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19.7 km

Swan Family by the Pond

Highlight • Lake

A beautiful bike ride through the Au!

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21.7 km

Bärndorfer Hut

Highlight • Mountain Hut

The Bärndorferhütte is a transplanted Alm from Carinthia. The ideal contrast in front of the ruins of the nuclear power plant, a "must see". And an Almdudler. :)

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21.9 km

Zwentendorf nuclear power plant

Highlight • Monument

Here you have a nice view of what is probably the safest nuclear power plant in the world.

On April 4, 1972, the groundbreaking ceremony for the construction project "nuclear power plant Zwentendorf", which had been decided a year earlier by the general assembly of the joint nuclear power plant Tullnerfeld. On February 15, 1972, excavation began at the construction site. The cost of construction was around 8,466 million Schilling (1979) The type of nuclear power plant corresponded to a boiling water reactor. The bottleneck capacity was designed for 730 megawatts.
In the summer of 1977, protest demonstrations also took place in Austria, strongly influenced by the opponents of nuclear power plants in West Germany. In the session of the National Council on July 7, 1978, a resolution was passed on a draft law which in any case bound the further use of nuclear energy to the approval of the National Council and provided for a referendum.
The referendum of November 5, 1978 ended with a participation of around two-thirds of those eligible to vote with 50.5% against and 49.5% for the commissioning. In Zwentendorf, the majority of the population voted in favor of commissioning.

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29.5 km

End point

Train Station

Way Types & Surfaces

Way Types

11.3 km

11.0 km

3.71 km

3.30 km

148 m

Surfaces

28.7 km

670 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Tuesday 14 July

29°C

18°C

63 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

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Altenwörth Power Plant – Zwentendorf nuclear power plant loop from Sitzenberg-Reidling

Roman Gate (Vienna Gate), Traismauer

Altenwörth Power Plant

Traisen

Mouth of the Traisen River at the Danube

View of the Altenwörth Danube Power Plant

Swan Family by the Pond

Bärndorfer Hut

Zwentendorf nuclear power plant

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