The Bridgeport times and evening farmer., 1919-05-10

lock in the Topeka case, which made the mixture available for general not filed until May 26 1910, about the time the writer went out of of flee, l. e., June ', 1910.
 As regards brick pavement Roxbury district in 1909, the statement of Brothers Conn lany that your consulting engineer, as Sup erintendent of Streets of the City of Boston, laid a number of streets with brick pavements in 1909, which brick pavements are generally al ready in wretched condition" is borne by the facts. These brick pavements laid largely on account of enthusiastic recommendations of such pavements, after examination of such pave ments in the city of Bridgeport Conn, city with witch Warren Brothers Company entirely acquainted. The work secured in Boston, count of unforeseen contingencies due to a newly enacted sewer statute, account of which many trenches dug in the streets at the time quality might have been obtained. These pave ments have already been discussed both in the published and unpublished reports of the Finance
 The streets in general however, are in excel lent condition and good for nSny years further service
 Brothers Company states that btuminous crete Claimed be 'As as btulithic at @ of cents per square yard surface only in 19o9" A mistake undoubtedly made by a ordinate of the Street Department, who all the contractor to deviate the specified ttons after statement that quality of asphalt called for could not be immediately obtained This permission was unfortUnatg and coupled with inc foundation of parts of Morton street undoubt- edly secured a poorer pavement than might have been obtained. The writer has no recollec-'on or record ever making the attributed 10 him by Warren Brothers Company and doubts if it statement howevc., is probably true as regards some the bituithic by War Brothers Company. Other examples of btul- ithic undoubtedly of better quality the Morton pavement The per square yard, 67 cents, is significant showing the approximate proper price for bituthic other aggregate bituminous concrete pavements.
 As regards the pavement Huntington the neighborhood of the Opera House, all though the writer has actual figures of cost, prediction is made that the figures will show it less for repairs than the bitulithic pave ment Dartmouth street. from Stuart street Copley for equal length of service.
 The writer with the advantages of aftersight frankly admits in judgment by himself and his subordnates during his terms Superintendent of Streets He trusts that he has prohted by these errors sufficiently to prevent in some measure the foisting the City of Boston of inferior pave rnents at e--orbitant prices.
 The length of the foregoing statement has been necessary in order to submit evidence to refute the bald statements of "arreta Brothers Company's letters For convenience the essential points summarized blows:
 show the average weight, 2 inches thick, to ap- pro1imately 232 pounds per square yard.
 (b) A weight of 2S6 pounds per square yard, claimed by Warren Brothers Company, is phy- sically impossible
 contained in bitulithic, and the equally good materials easily be obtained for any type of bituminous pavement.
 8. The excess weight of bftuHthc over Topeka when made of the same grades of materials, is principally account of the larger amount of phalt in Topeka which displaces stone, as com pared with bituIithic,
 A. Weight alone is of little, if any, importance in determining the wearing qualities of bituminous pavements
 5. Using the same grade of materials Topeka and standard asphalt are more expensive to man.
 
 G. The of bitulithc in Boston, includ- ing labor, materials and plant charges, does necessarily exceed 64 cents per square yard inch thick.
 '. There is no appreciab1e difference in the of handling sand in constructing bit luminous pavements.
 8. There is no substantial increase in cost for hauling bitulithic Topeka and Standard phalt nixtures-
 g. The same machinery is suitable to rnanu- factCre any type of bituminous pavement.
 10. The flush seal coat is sometimes used Topeka, but is not needed for Standard asphalt.
 1. Only best grade materials should be specified allowed for in any type of bitum- inous pavement.
 The brick pavements in the Roxbury dis trct, laid n 1908 and 1909 general in ex- celIent condition.
 13. Bitulithic not excluded from the City of Boston specifications in 1908 1909, as no specifications prepared, contractors being at liberty submit bids any type o btumtnous pavement that they would guarantee. Warren Brothers Company preferred to submit bids for Standard asphalt
 Respectfully submitted,
 GUY c. EMERSON
 Consulting Engineer
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