What percentage of the Interstate System construction cost was borne by the federal government?
Answer
90%
The federal government bore 90% of the cost for the Interstate System construction, representing a massive assumption of responsibility compared to previous federal road contributions.

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Related Questions
When was the Interstate Highway System officially born through landmark legislation?What 1919 military experience heavily influenced Eisenhower's dedication to a national road network?Which European road system served as a specific model for high-speed, limited-access travel that impressed Eisenhower?What historical distinction is attributed to the undertaking that created the Interstate Highway System?What percentage of the Interstate System construction cost was borne by the federal government?Which key figure served as the Chief of the Bureau of Public Roads who laid significant planning groundwork prior to 1956?Besides improving commerce, what was the primary initial justification emphasized for the IHS's creation?What design specification was mandated to ensure the system functioned as a high-speed, modern network?What was the initial authorization amount specified in the 1956 Act for the first 13 years of work?How long did the challenging 1919 military motor convoy, which influenced Eisenhower, take to traverse the country?What mechanism was established in the 1956 Act to help shield the funding from annual budget debates?