RINNINGER

Flood protection: Mega dam with view of the Zugspitze

Figure: Hyna + Weiß Bauingenieure

Fig. 1: In the event of flooding, the 20 reinforced concrete rectangular culverts allow water to flow unhindered through the moor

Figure: Hyna + Weiß Bauingenieure

Figure: Staatliches Bauamt Weilheim

Fig. 2: State Road 2062 runs through the Murnauer Moos for a length of approx. 400 m

Figure: Staatliches Bauamt Weilheim

Fig. 3: Isometric view of the dam cross-section

Figure: Staatliches Bauamt Weilheim

Figure: Hyna + Weiß Bauingenieure

Fig. 4: The reinforced concrete elements are 2 m wide and 1.60 m high. The positioning of the culverts is in alignment with the concrete plug column grid

Figure: Hyna + Weiß Bauingenieure

Figure: Rinninger

Fig. 5: The culverts measure around 23 m

Figure: Rinninger

Figure: Hyna + Weiß Bauingenieure

Fig. 6: In 2024, after being closed for around a year, State Road 2062 was reopened to traffic

Figure: Hyna + Weiß Bauingenieure

In the district of Garmisch-Partenkirchen, a dam was created for a federal highway through a natural depression. The project was already presented in our 2025 yearbook. The new volume „Beton Bauteile 2026“ (Concrete Components 2026) has now been published and can be ordered from the Bauverlag shop.

The dam is characterized by numerous flow channels that prevent the Loisach river from damming up, thus minimizing flood damage. The Murnauer Moos is located in the district of Garmisch-Partenkirchen on the northern edge of the Bavarian Alps. With an area of 32 km², it is considered the largest contiguous, near-natural moorland area in Central Europe. It is crossed by State Road 2062, which connects Federal Highway 2 in the market town of Murnau am Staffelsee with Federal Highway 11 in the municipality of Kochel am See. Because the entire road within the moor is completely flooded even during...