March 2
| 1925 | In response to a resolution adopted by AASHO during its annual meeting in 1924, Secretary of Agriculture Howard M. Gore appoints the Joint Board on Interstate Highways to study how to designate the Nation's main interstate roads. Chief Thomas MacDonald chairs the committee, with BPR's E. W. James as secretary and A. B. Fletcher as a member. The Joint Board, which includes representatives of 21 State highway agencies, creates the U.S. numbered highway system. (AASHO continues to designate U.S. route numbers today.) |
| 1974 | Administrator Norbert Tiemann announces an agreement with the National Council of State Garden Clubs, Inc., and the State highway agencies for "Operation Wildflower" to promote the planting and growth of wildflowers along Federal-aid highways. |
