1918
108 years ago
Innovation

The Twin Peaks Tunnel in San Francisco, California begins service as the long...

February 3, 1918

Summary

The Twin Peaks Tunnel in San Francisco, California begins service as the longest streetcar tunnel in the world at 11,920 feet (3,630 meters) long.

Full Story

The Twin Peaks Tunnel in San Francisco, California begins service as the longest streetcar tunnel in the world at 11,920 feet (3,630 meters) long.

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Quick Facts

Date
February 3, 1918
Event Type
Innovation
Years Ago
108

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