The great Trogfurth Bridge (German: Trogfurther Brücke) was a historic cultural monument in the Harz Mountains of Germany that was blown up by the SS on 14 April 1945. The bridge over the River Bode, which was made of rubble stone, had been built in 1739/40 at the site of a ford - first mentioned in 919 - on the Königsstieg path through the mountains. The Königsstieg ("King's Way") was one of the oldest German military roads and trading routes and linked northern Europe with Italy.
After the Second World War the destroyed bridge was replaced by a modern one. This became superfluous when the Königshütte Dam was constructed, as the dam wall was located only a few metres east of the old bridge site. From the Trogfurth Bridge it is only a few hundred metres to the Lange, to the ruins of the castles of Königsburg, Trageburg and Susenburg.
Trogfurther Brücke is No. 42 in the system of checkpoints in the Harzer Wandernadel hiking network.