2012 INDOT Letting Dates:

January 11 & 13 - Wednesday & Friday

February 8 - Wednesday

March 7 - Wednesday

April 4 - Wednesday

May 2 - Wednesday

July 11 - Wednesday

August 8 - Wednesday

September 12 - Wednesday

October 11 - Thursday

November 15 - Thursday

December 12 - Wednesday 

http://www.in.gov/dot/div/contracts/letting/lettingdates.htm