Along the state funding from Albany, the rest of the money for the Sprain Brook extension was to be paid for through federal funds. The new parkway extension, which had a slated completion in December 1980, was bid on in 1978 and won by Yonkers Contracting Company for a total of $22.8 million (1978 USD). Various materials in the extension included of gravel, of concrete, of asphalt and of steel. While the project started under the eyes of NYSDOT and EPHA, when the new parkway was complete, the East Hudson Parkway Authority had been disestablished in 1979 and control of the Sprain Brook had been turned back to NYSDOT.