- PUBLIC EOAD MILEAGE AISTD EEVENUES, 1914. 5 



TYPES OF SURFACED ROADS. 



Table 7 shows the distribution of types of surfaced roads in the 

 various States on January 1, 1915. Of the 257,291.54 miles of sur- 

 faced roads in the United States on January 1, 1915, 116,058.12 

 miles, or 45.11 per cent, were gravel; 64,898.43 miles, or 25.22 per 

 cent, were macadam; 44,154.73 miles, or 17.16 per cent, were sand 

 clay; 10,499.79 miles, or 4.08 per cent, were bituminous macadam; 

 2,348.43 miles, or 0.91 per cent, were concrete; 1,593.88 miles, or 

 0.62 per cent, were brick, and 17,738.16 miles, or 6.90 per cent, were 

 surfaced with various materials. 



Table 1.- 



-Road mileage, revenue, and other related data for the United States, 1914, 

 1909, 1904.^ 



1911 



1904 



Total road mileage 



Surfaced mileage. 



Percentage sm'faced 



Total revenue 



State and local road and bridge bonds outstanding 



Jan. 1, 1915 



Land area (square miles) 



Populat ion 



Rural population 



Assessed valuation 



Miles of road per square mUe of area 



Miles of road per 1,000 of rural population 



Surfaced mileage per square mOe of area 



Surfaced mileage per 1,000 of rural population 



Road and bridge revenue per mile of road 



Road and bridge revenue per square mile of area... 



Road and bridge revenue per capita 



Road and bridge revenue per 8100 assessed value... 



2, 445, 761 



257, 291. 54 



10.5 



10,263,784.46 



14,763,082.32 



3 2, 973, 830 



3 91, 641, 197 



3 49,348,883 



1,093,003,851 



0.82 



49.5 



0.086 



5.21 



$98. 22 



$80. 79 



82.62 



$0.35 



2, 199, 645 

 190, 476. 32 

 8.66 

 (2) 



3 2, 973, 830 



3 91, 641, 197 



3 49,348,883 



5 $69, 093, 003, 851 



0.74 



44.6 



0.064 



3.86 



2, 151, 379 



153, 530. 4 



7.14 



ra, 623, 616. 56 



(2) 

 4 2, 974, 099 



* 75, 715, 857 



* 45, 197, 390 

 5,114,924,911 



0.72 



47,6 



0.052 



3.39 



$37.01 



$26. 77 



$1. 05 



$0.23 



I Exclusive of District of Columbia, Alaska, and island possessions. 

 3 1910. < 1900. 6 1912. 



Miles of road surfaced between 1909 and 1914, 66,815. 22. 



2 No information obtained. 

 6 1902. 



