<P> Public works ( or internal improvements historically in the United States ) are a broad category of infrastructure projects , financed and constructed by the government , for recreational , employment , and health and safety uses in the greater community . They include public buildings ( municipal buildings , schools , hospitals ) , transport infrastructure ( roads , railroads , bridges , pipelines , canals , ports , airports ) , public spaces ( public squares , parks , beaches ) , public services ( water supply , sewage , electrical grid , dams ) , and other , usually long - term , physical assets and facilities . Though often interchangeable with public infrastructure and public capital , public works does not necessarily carry an economic component , thereby being a broader term . </P>
the public works administration help make improvements to what part of the nation 's economy
internal