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When was the old 7 Mile bridge built?

Published in Bridge Construction History 2 mins read

The old 7 Mile Bridge, a significant engineering marvel of its time, was constructed from 1909 to 1912.

Historical Construction of the Old 7 Mile Bridge

The construction of the original Seven Mile Bridge, initially known by its full designation, the Knights Key-Pigeon Key-Moser Channel-Pacet Channel Bridge, marked a pivotal moment in Florida's history. This monumental undertaking was a key component of Henry Flagler's ambitious Florida East Coast Railway (FEC) extension, aiming to connect mainland Florida to Key West.

  • Visionary Leadership: The project was spearheaded by Henry Flagler, a prominent industrialist and co-founder of Standard Oil, whose vision was to establish a railway line across the Florida Keys. His dedication and financial backing were crucial to overcoming the immense engineering challenges posed by the marine environment.
  • Engineering Expertise: The construction was carried out under the direct supervision of Clarence S., whose expertise was vital in planning and executing such a complex over-water railway bridge. The project involved innovative techniques for the era, including the use of concrete and steel in a harsh saltwater environment.

The bridge's completion in 1912 opened up the Florida Keys to unprecedented access, transforming the region economically and socially.

Key Facts About the Old 7 Mile Bridge

To provide a clearer overview of the bridge's construction and characteristics, consider the following details:

Aspect Detail
Construction Period 1909 to 1912
Original Name Knights Key-Pigeon Key-Moser Channel-Pacet Channel Bridge
Key Figures Henry Flagler (Visionary), Clarence S. (Director of Construction)
Original Purpose Part of the Florida East Coast Railway to Key West
Current Use Primarily for pedestrians and cyclists; a modern bridge handles vehicular traffic

Transition and Legacy

While the original bridge served its purpose for many decades, enabling rail and later vehicular traffic, a modern counterpart was eventually built alongside it to accommodate contemporary transportation needs. Today, the older bridge stands as a historical landmark, offering unique recreational opportunities for walkers and bikers, connecting visitors to a piece of Florida's pioneering past. The modern bridge is now the primary route for vehicular traffic, signifying the evolution of infrastructure in the region.