Schierstein Bridge - Technical Data

Technical Data

The Schierstein Bridge consists of six individual bridges.

• From the south end, the first structure spans the Mainz-Mombach floodplain. It is a composite steel bridge with two spans with lengths of 46.4 m and 52.2 m, for a total length of 98.6 m. It is composed of longitudinal plate girders and crosswise trusses with a prestressed-concrete bridge deck.
• The next structure is the small river bridge, spanning the left arm of the Rhine. It is an arched steel bridge with three spans of 70 m, 170 m, and 70 m, for a total length of 310 m. It has an orthotropic steel bridge deck supported by haunched longitudinal plate girders and crosswise trusses.
• Structure 3 is the Rettbergsaue Island bridge, with three spans of 70 m each, for a total length of 210 m. It is composed of constant-height longitudinal plate girders and crosswise trusses with a prestressed-concrete bridge deck.
• The fourth structure is the large river bridge, spanning the left arm of the Rhine. It is a steel bridge with an orthotropic steel bridge deck supported by haunched longitudinal plate girders and crosswise trusses. Its cross-section is identical to that of the small river bridge. It has three spans of 85 m, 205 m, and 85 m for a total length of 375 m. The 205-m span is the largest of the entire Schierstein Bridge.
• Structure 5 is the bridge spanning the Schierstein floodplain. It is composite bridge with a constant height and a composition like that of Structures 1 and 3. It has three spans of approximately 70 m, 60 m, and 55 m, for a total length of 185 m.
• After a 4.39-meter wide pillar separating Structures 5 and 6, comes finally a prestressed concrete box-girder bridge with 3 spans of 32.88 m each, for a total length of 98.64 m. The deck is also preloaded in the transverse direction.

All six structures have a common deck for both carriageways. Structures 1 and 2, and Structures 3 through 5, are longitudinally coupled.

The abutments and land supports were built as single columns with a circular cross-section and founded on footings. The river piers have a rounded rectangular cross-section and were founded on caissons.