Most císaře Františka I., Suspension bridge in Old Town, Prague, Czech Republic
The Emperor Francis I Bridge was a chain suspension bridge over the Vltava, Prague's second permanent crossing after Charles Bridge. Its two identical halves met at a massive masonry pier on Střelecký Island, and each half carried two towers holding the chain bearings 10.5 m above the roadway. The central span measured 132 m, the side spans 33.3 m each, and the deck was of soft wood.
Construction took place between 1839 and 1841, making it Prague's second river crossing after Charles Bridge. It represented an ambitious engineering project that employed innovative techniques of that era.
The bridge carried the name of Emperor Francis I, and its Czech name was Most císaře Františka I. Horse-drawn tram cars stopped at both ends because the chain structure could not bear rails, so passengers walked across on foot. Ignát Herrmann described its slippery, creaking wooden roadway and the cutting wind.
Access to the bridge was restricted to light vehicles, while heavier traffic had to use an alternative route. Today the site can be explored on foot to understand how the city's transportation network evolved.
During its first load test in November 1841, around 150 cattle were driven across the structure. This was an unconventional but practical way to verify the bridge's ability to handle real-world conditions.
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