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Michigan Boulevard, Chicago, iTarviated Macadam Road which shows no need of repair or resurfacing after two years of hard wear 
THE SUCCESS OF TARVIA IN CHICAGO 
The City of Chicago has a splendid series of boulevards, most of which are paved with 
macadam and have become great automobile thoroughfares. 
A few years ago the maintenance cost of the macadam on these roads became excessive. 
New surfacing would be stripped off by the automobile within a few months, and the con- 
tinual renewal made it a question whether the use of macadam on these boulevards should be 
continued. At the same time adjoining property suffered by reason of great clouds of dust, 
and continual water sprinkling failed to abate the nuisance. 
The use of tarvia has completely changed the situation. After a thorough trying-out in 
various experimental stretches, it is now used in vast quantities with great satisfaction to 
property owners, automobilists and Road Commissioners. The principal stretches of tar- 
viated macadam are on Grand Boulevard, Oakwood Boulevard, Drexel Boulevard, Garfield 
Boulevard, and Jackson Park, the total area being upward of 250,000 yards. In addition to 
this, 5,000 square yards of walk in Washington Park have been treated with tarvia. 
The effect of tarvia on macadam boulevards is that of a powerful binder which cements 
the fine stone in a tough, rubber-like matrix from which automobile tires cannot tear it 
loose. A single application lasts for a season or more and shows beneficial results for several 
years. 
Not only is the dust nuisance abated, but the cost of maintenance has been greatly re- 
duced. To-day the retaining of macadam on these boulevards is not questioned. 
Booklets illustrating tarviated roads all over the country free on request 
Barrett Manufacturing Company 
New York 
Cincinnati 
Chicago 
Minneapolis 
Philadelphia 
Pittsburg 
Boston 
St. L/Ouis 
Kansas City New Orleans 
Cleveland 
London, Eng. 
