Gov. Steve Beshear Monoday announced that a project to replace two railroad bridges that are aged and deteriorated, yet vital to Fort Knox and countless freight customers, has been approved for an $11.6 million grant from the U.S. Department of Transportation. The bridges, at Muldraugh in Hardin County, are sequentially located on a heavily used freight rail line that is part of the Strategic Rail Corridor Network and Defense Connector Lines serving Fort Knox. The rail line’s many commercial customers include Louisville Gas & Electric Co., which depends on it for coal deliveries for power generation.