Arizona Road Conditions

Road Conditions, Arizona Highway System

ARIZONA HIGHWAYS STATE ROUTE 88 (Apache Trail) STATE ROUTE 187

STATE ROUTE 82 STATE ROUTE 61

STATE ROUTE 75

ENGINEERING HIGHWAY 60

(Continued from Page 25) cubic yard capacities, and two all-steel, 12 cubic yard dump carts. These carts were designed by the contractors themselves and built in the state for this job. They are pulled by 60 Caterpillar tractors and dumped by gravity. A hoist mounted on the tractor rights the body after dumping.

The job was figured for about 90 per cent solid, so no teams or fresnos will be used. This classification did not completely eliminate the use of all livestock, however. A few burros are employed to pack powder to places where regular hauling equipment would require extensive pioneer roads. They just about make their own trails and give no concern to their load, although a slip over the side may develop a surprise for them on landing.

The quantities for the job run fairly uniform for cuts, but the fills vary greatly. The average roadway excavation is 1600 cubic yards per station, for the full length of the project. The largest fill on the project is 285 feet between grade points and contains 104,000 cubic yards of embankment.

The job is a National Recovery Highway Project, with the completion date set for December 31, 1935, but the contractors expect to dig out before then.

The contractors are superintending their own work, both George and Bill Orr acting in this capacity. The state is represented by R. C. Perkins, District Engineer, with the writer as his resident engineer.

EROSION WORK GOES FORWARD

There are a lot of corollaries to the proposition of soil erosion in this country. Farmers go broke not because of low prices alone. Farmers are a sturdy, independent people. They are able to feed themselves and wear old clothes and get by market vagaries, but when erosion is eating the strength and vitality of Mother Earth beneath their feet, the burden becomes too great. The cost of producing a pound or a bushel exceeds the value when soil fertility is gone; it is some problem to restore it.

There are "marginal lands" all over the United States that must be put back into forest and sod. And every acre of our fertile desert soil, in this frost-free, sub-tropical climate, that can be irrigated by any means, must be irrigated, in the interests of the commonwealth. It may not come immediately, but it is coming. And this, I say, is the final phase of the greatest problem of our day, the soil problem, as it affects Arizona.

But the future, is cheerful. We shall not only have irrigated farms scattered all over this state, but by our eventual control of wash and promotion of vegetation we shall have water either on the surface or close to the surface of our myriad washes and watercourses. It will become possible to get water in wells almost anywhere, and there will be homes where now is only cactus and rattlesnake and burning aridity.

"Save The Opening" With Armco Corrugated Pipe

When inspection shows a waterway to be failing, it's wise economy to replace it before the opening has been obstructed with pieces of the failing culvert, and certainly before the structure has completely failed.

A method used by many engineers and maintenance superintendents is that of threading an Armco Corrugated Pipe through the failing structure. This is practicable in most cases because the carrying capacity of existing waterways is usually greater than actually required. The picture above shows such a job on an electric railway. The original waterway was in very poor shape, having broken down in many places, but the replacement was accomplished quickly and economically.

Armco Corrugated Pipe is Strong and Durable-properly installed, it never pulls apart. Thousands of installations under fills ranging from 18 inches to 95 feet are in good condition today, some of these having been in service for 27 years.

For new construction or maintenance, Armco Corrugated Pipe is the most economical.

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