This ominous-looking machine partially immersed in the Missouri River was the world’s largest suction dredge when it was introduced.

This 1941 cover image shows Chrysler engineers planning the layout of the first factory for the mass production of tanks in the U.S.

On a Saturday morning in the summer of 1966, Vinton Bacon, general superintendent of the Metropolitan Sanitary District of Chicago, pulled his car into a service station near his suburban home for gas and an oil check. The attendant found four sticks of dynamite wired to the car’s engine. Only a faulty connection prevented them from exploding.

This 1940 cover photo shows a streamlined crane lowering the first rotor into position at the Hiwassee Dam in North Carolina.

As reported by ENR at the time, while the Depression deepened in the early 1930s, none of the initiatives taken by President Herbert Hoover or Congress did much to help, and some, such as the Smoot-Hawley Tariff Act, which led to higher prices, were counterproductive.

This 1935 cover shows three workers in a sewer tunnel in Chicago that is being driven through blue clay.

In this selection of construction history from the ENR archives, a look at the successful rush to build in the middle of World War II what at the time was the world's largest office building.

The following article, published in ENR’s 100th anniversary issue (April 30, 1974) chronicles the magazine’s history during it’s first century.

During his first year as ENR editor-in-chief, Arthur J. Fox decided to have the magazine each year recognize the individuals who have made significant contributions to the construction industry.

The machine being pulled by a tractor on this 1937 cover is a then-newly developed rockpicker.