T-15 over the Red Rock Dam will be closing today.A bulkhead will be installed beginning on Wednesday. The bulkhead will allow the dam’s large gates to be closed one at a time when a gate requires maintenance. Assistant Operations Manager John Holt says they don’t enjoy closing the road, but this project will help with maintenance projects for the dams 60 year projected future. The road will be closed for a planned two weeks time to complete the installation.