STONE AND CEMENT CONSTRUCTION. 501 



STATES SHOWING THE GREATEST PERCENTAGE OF IMPROVED ROADS. 



Rhode Island 49. 14 Wisconsin 16.64 



Massachusetts 49 New York 16.13 



Indiana 36.7 Washington 13.19 



Ohio 27.13 Maryland 12.77 



Connecticut 24.08 Utah 12.23 



New Jersey 22.76 Tennessee 11.66 



Kentucky 18.82 South Carolina 11 .02 



Vermont 18.4 Maine 10.59 



California 17.87 Michigan MO. 01 



The following states have between 5 and 10 per cent of 

 roads improved : Alabama, Delaware, Florida, Georgia, Illinois, 

 Minnesota, New Hampshire and Oregon. 



There are twenty-two (22) states which have less than 5 

 per cent of roads improved. 



AVERAGE COST PER MILE OF IMPROVED ROADS IN THE VARIOUS 

 STATES IN 1909.* 



Sand-Clay $723 00 per mi. Macadam $4,989 per mi. 



Gravel 2,047 00 per mi. Bituminous Macad. 10,348 per mi. 



TOTALS. 



ESTIMATED COST *QF -IMPROVED ROADS IN THE UNITED STATES 

 BASED ON DATA CONTAINED IN BULLETIN NO. 4!. 



Roads. Miles. Cost. Total. 



Stone 59,237 $4,989 00 $295,533,393 00 



Gravel 102,870 2,04700 210,574,89000 



Sand-Clay 24,601 72300 17,786,52300 



Miscellaneous 3,771 10,00000 37,710,00000 



(B. Mad. Brick, etc.) 



Grand Total 190 , 479 $561 , 604 , 806 00 



* These figures are based on reports received from the officials of 

 state highway departments and from counties, townships and other local 

 sub-divisions of the various states. 



