John Ripley Freeman was an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 civil

Civil engineer

A civil engineer is a person who practices civil engineering; the application of planning, designing, constructing, maintaining, and operating infrastructures while protecting the public and environmental health, as well as improving existing infrastructures that have been neglected.Originally, a...

 and hydraulic engineer

Hydraulic engineering

This article is about civil engineering. For the mechanical engineering discipline see Hydraulic machineryHydraulic engineering as a sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive...

. Freeman was born in West Bridgton, Maine and received his undergraduate degree from MIT in 1876. He is noted for his efforts to design and build the Charles River Dam

Charles River Dam Bridge

The Charles River Dam Bridge, officially the Craigie Bridge, also called Craigie's Bridge or the Canal Bridge, is a six-lane bascule bridge across the Charles River, connecting Leverett Circle in downtown Boston, to Monsignor O'Brien Highway in East Cambridge, Massachusetts...

, advising the government on dam and lock foundations for the Panama Canal

Panama Canal

The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

, and influencing the design of MIT's new campus in Cambridge, Massachusetts

Cambridge, Massachusetts

Cambridge is a city in Middlesex County, Massachusetts, United States, in the Greater Boston area. It was named in honor of the University of Cambridge in England, an important center of the Puritan theology embraced by the town's founders. Cambridge is home to two of the world's most prominent...

. He was also the founder and president of Massachusetts Mutual Fire Insurance Co.. He also served on the National Advisory Board on Aeronautics during World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

.