the county had incurred building and maintaining them was becoming a financial burden. The new authority would oversee a $50 million (equivalent to $ in ) rehabilitation program. The TSPC was opposed to the new plan. Its commissioners feared that their greatest work would pass to the control of an agency for which it would be just one of many responsibilities, and that it would be necessary to make the Taconic a toll road in order to pay for the improvements planned. When the bill passed and the EHPA was created, with most of its members from Westchester, Columbia County residents feared the road would never be completed. The TSPC was allowed to operate the Taconic through 1962, by agreement with the EHPA, since the former's budget was already in place. When it took over, the EHPA established the toll gate at the Thruway as the northern limit of its jurisdiction, ending any plans that some of the TSPC commissioners had had of continuing at least to US 20 a short distance to the north. An opening ceremony celebrating the completion of the road after almost four decades was planned for November 25, 1963. The parkway opened as scheduled, but the ceremony was canceled due to the assassination of President John F. Kennedy three days earlier. Improvements and reconstruction 1961–79, EHPA administration As early as its 1941 study the TSPC had had documentary evidence that some sections of the parkway, particularly in Westchester, were already outmoded. After the war, it had had to put most of the money it was now competing with the interstate system for into finishing the road. It was able to make one improvement, eliminating the grade intersection at Underhill Road in 1954. Clarke designed a new bridge architecturally sympathetic to those built in the early 1930s. The TSPC had also planned to realign the road at Lake Mohansic and replace the grade intersection with an interchange. In 1962, while the commission was finishing the northern section of the Taconic, the EHPA began that project. The original parkway became the northbound roadway and a new southbound one was built. The EHPA's improvements made the road safer and more efficient for the commuters who now used it, but changed the character of the road, widening it and replacing its concrete pavement with asphalt and its wooden guardrails with steel ones that were allowed to rust in order