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Tacoma narrow bridge.
it collapsed due to resonance excited by strong winds.
It crosses the Tacoma Narrows strait which is part of Puget Sound in Washington state.
Tacoma narrow bridge.
The original Tacoma Narrows Bridge that was opened in 1940 collapsed due to heavy winds. The roadway twisted and vibrated violently under 40-mile-per-hour (64 km/h) winds on the day of the collapse.
Tacoma bridge fell down because it is too narrow compare to its length. So the bridge was unstable and due to strong wind it was collapsed.
A land bridge. An Isthmus.
The path through the forest was so narrow that only one person could walk through at a time.
A Narrow Bridge sign means that the bridge ahead is only wide enough to accommodate two lanes of traffic with very little room [source: A_Narrow_Bridge_sign_means_that_the_bridge_ahead_is_only_wide_enough_to_accommodate_two_lanes_of_traffic_with_very_little_room]
the Narrow Bridge
it is a combination of narrow job design and broad job design
A narrow strip of land such as this is called an isthmus.