Oklahoma may close two historic Route 66 bridges, but leave them a s monuments. One is the famous Pony Bridge which is too far gone to be repaired and continue use.
The other is the Horse Creek Bridge near Afton.
However, you can probably still drive across the bridges until 2017, so if you want to drive them, you'd better get to cruisin'.
I can live with them closing them and leaving them as monuments.