The governors of Kentucky and Indiana and Mayor Greg Fischer last month proposed that the $4.1 billion project be scaled down to save $500 million.
The suggested cutbacks include a smaller east end Bridge, reconfiguring Spaghetti Junction at its present site instead of moving it south, and removing walkways from a new downtown bridge.
Project Manager Gary Valentine says the changes have potential environmental impacts not considered in earlier studies.
He says the new review should take about a year, “which is within the timeline that we have indicated all along, with the goal of still getting into construction by August of 2012,” he said.
The bi-state bridges authority will also host an industry forum this week to discuss ways to make the project more cost-efficient.