In 1990, the Port Authority announced a minor rehabilitation for the George Washington Bridge. As part of the project, the supporting structural steel for the upper deck would be replaced, and some ramps would be rebuilt. The ramps on the New York side, connecting with Riverside Drive and the Henry Hudson Parkway, were to be reconstructed for $27.6million after studies in the late 1980s showed deterioration on these ramps. Although the Port Authority had announced the repairs in advance, the start of roadwork in September 1990 caused extensive traffic jams.