APPLYING “TARVIA B”, GOUVERNEUR, N. Y. 
ROAD ECONOMY 
While primarily Tarvia was intended for a dust preventative, it has proved to be a most won- 
derful road preservative as well, and in that way its use saves in maintenance expense much more 
than the cost of the Tarvia treatment. 
Air. Linn White, of the South Park Board of Chicago, says: 
“In 1905, South Park Avenue was reconstructed and paved with macadam twelve inches thick. The 
cost of construction was $1.25 per square yard. In 1906 it was repaired and rerolied at a cost of 2%c 
per square yard. In 1907 about 6c per square yard was expended ii, maintenance, and it is now esti- 
mated that it wiil cost at least 20c per square yard to resurface and carry it through the season of 1908 
in good shape as a piain macadam street. This is a maintenance cost of about 10c per square yard 
per year for the period of three years, exclusive of sprinkling an,d cleaning. This means the round of 
repairs and resurfacing would only be begun over again at a gradualiy increasing cost each year. In 
its present condition there are numerous depressions one to two inches deep and 9 sprinkling of loose 
stone may be seen over the surface, loosened and thrown up by the automobiles. 
“In 1906 two miles of Grand Boulevard were treated with Tarvia at a cost of Gc per square yard, 
plus a trifle for a little new stone used in redressing. In .Tune, 1907, three blocks were spiked up and 
re-treated with Tarvia. The rest of it, thirteen blocks, remains in fair condition up to date, with 
not more than five per cent repaired in 1907. It may he expected to go through the season of 1908 
with a very small percentage of repairs.” 
The entire surface of Grand Boulevard has since been treated at a cost of 2l4c per square 
yard, making a total cost for the Tarvia treatment and three years’ maintenance of less than Oc 
per square yard, which contrasts favorably with the 28^c required on the South Park extension 
of the same street. 
It should be borne in mind also in connection with this work that the cheaper • tarviated 
road was dustless, whereas the South Park avenue extension with its high maintenance cost 
required continual sprinkling with water, and even then was a source of complaint to residents 
and pedestrians. 
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