Gutachtalbrücke, Prestressed concrete girder bridge in Baden-Württemberg, Germany.

The Gutachtalbrücke is a prestressed concrete road bridge on the Bundesstraße 31 east of Titisee-Neustadt. It crosses the Gutach valley, the L156 road and the Höllentalbahn. The structure consists of a 617 m main bridge with eight spans and a 134.55 m four-span approach bridge. The main bridge has spans of 49 m, 59 m, four of 101 m, 59 m and 46 m, with a single-cell box girder 17.85 m wide at the deck.

Plans to relieve Neustadt's town centre with such a bridge existed since 1958, but the project was only approved in 1978. Built from 1978 to 1980 to a design by Hans Wittfoht, it is the highest bridge in the Black Forest; the two halves met on 24 June 1981. The 22 million Deutsche Mark cost was borne by the federal government and Baden-Württemberg, with the contract going to Polensky & Zöllner and Richard Besemer of Wendlingen am Neckar.

The bridge is listed as a Kulturdenkmal, a protected cultural monument. Its planning goal was to fit visually into the landscape without blocking the view into the Kappler Tal. The structure was designed by Hans Wittfoht and built by Polensky & Zöllner with Richard Besemer of Wendlingen am Neckar.

The bridge carries the B31 east of Titisee-Neustadt, not a motorway, so it can be crossed by car; the road climbs at a gradient of 4.08 percent, with two lanes uphill and one downhill. Below it pass the Gutach stream, the L156 road and the Höllentalbahn. The structure curves with a horizontal radius of 600 m, and the main bridge is 617 m long, followed by a 134.55 m approach bridge.

The bridge carries the B31, not a motorway, and is a listed Kulturdenkmal. Its main span is 617 m long with eight fields, joined to a 134.55 m approach bridge of four fields; the two halves met on 24 June 1981. The deck is only 17.85 m wide, with two lanes uphill and one downhill on a 4.08% gradient.