Series 1495: Interstate System Traveled-way Study. 1961-1972.Highway Department (RG 55).
As of 10/31/2003
Series 1495: Interstate System Traveled-way Study. 1961-1972.
Highway Department (RG 55).
Correspondence, memoranda, maps and data sheets relating to Phases 1, 2, 3 and 4 of the Way Study for the interstate highway system.
| Correspondence and memoranda: 1961-1970 | 9171 |
| Data sheets and recording forms: n.d. | 9171 |
| Maps showing stages of construction: 1962-1972 | 9171 |
| Miscellaneous computer printouts: n.d. | 9171 |