[1]Designed by Highway Department but not yet constructed.
[1]Designed by Highway Department but not yet constructed.
[2]Designed by Highway Department and construction supervised by Counties.
[2]Designed by Highway Department and construction supervised by Counties.
[3]Designed and construction supervised by Highway Department.
[3]Designed and construction supervised by Highway Department.
Where loading is referred to as "Heavy," the structure is designed for a twenty-ton roller and for 100 lbs. per sq. ft. Where loading is referred to as "Medium," the structure is designed for a fifteen-ton roller and for 75 lbs. per sq. ft.
Where loading is referred to as "Heavy," the structure is designed for a twenty-ton roller and for 100 lbs. per sq. ft. Where loading is referred to as "Medium," the structure is designed for a fifteen-ton roller and for 75 lbs. per sq. ft.
(These mileages are only roughly approximate as accurate data is obtainable in very few counties)
As proof that the people of Oregon are awake to the value of good roads, the following list is given of Counties which have voted bond issues for the development of their road systems: