January 20
| 1905 | The second day of the National Good Roads Association's midwinter meeting, in Jacksonville, FL, begins at 10:30 a.m. Colonel W. L. Spoon, the OPRI expert in charge of the object lesson road under construction during the convention, discusses construction of sand-clay roads, saying sand and clay make the finest roads in the world, as demonstrated by the beach road along the Florida coast. On the 21st, the delegates meet at the Board of Trade, then go to the northern part of the city where they inspect the road being built by Spoon and road expert J. H. Dodge, Director Martin Dodge's brother. |
| 1908 | OPR begins an 8-week course of theoretical and practical instruction for engineer trainees in Washington, DC (salary: $60 per month and field expenses). Lectures and laboratory work cover problems in road construction, petrography and mineralogy, dust preventatives, plotting, field notes, estimates, types of surface, and the history and development of road building. |
