Maps. National system of interstate highways, selected by joint action of the several State highway departments, as modified and approved by administrator, Federal Works Agency, Aug. 2, 1947.
Publication Title:
National system of interstate highways, selected by joint action of the several State highway departments, as modified and approved by administrator, Federal Works Agency, Aug. 2, 1947.
Display Title:
Maps. National system of interstate highways, selected by joint action of the several State highway departments, as modified and approved by administrator, Federal Works Agency, Aug. 2, 1947.
Series Title:
Maps.
Corporate Agency Authors:
Public Roads Administration and Federal Works Agency