Kinzigtalbrücke, Road bridge in Bad Soden-Salmünster, Germany.

The Kinzigtalbrücke is a highway bridge on the A66 autobahn that spans nearly 1 kilometer across the valley, passing over several transportation routes below. The structure consists of prestressed concrete in a hollow box design and carries four lanes of traffic.

Construction of the Kinzigtalbrücke began in 1991 and the bridge was completed in September 1994. In August 2021 a semi-trailer truck went off the bridge and fell into the Kinzig below.

The bridge connects communities on both sides of the Kinzig valley and serves as a daily part of the regional transportation network. It has become a familiar landmark in the landscape that locals pass through without much thought during their journeys.

The bridge is in constant use as part of the A66 autobahn and carries thousands of vehicles daily. Visitors wanting to explore the area can observe it from several viewpoints in the valley below.

The bridge is a hollow-box prestressed concrete structure, not a single-span arch: its deck rests on piers across the valley. Around 30,000 vehicles cross it daily. In August 2021 a semi-trailer truck went off the bridge and fell into the Kinzig below.