WEST MEMPHIS, Ark. — The Hernando de Soto (I-40) Bridge which crosses the Mississippi River between Arkansas and Memphis, Tenn., was closed Monday after a bridge pier in a construction zone settled overnight. Engineers were inspecting the span.

Under a Tennessee highway project that extends into Arkansas, workers are improving the I-40 Bridge to make it safer in case of earthquakes.

The New Madrid fault runs through the area.

Motorists were diverted to Interstate 55, which parallels I-40.

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