ROADS AND BRIDGES, JULY 1, 1913-DEC. 31, 1914. 63' 



locations; roads have been straightened and widened; culverts have 

 been located, built, and enlarged. The total amount expended in 

 such work up to December, 1914, was $75,785.95, and about $125,000 

 was available in the fall for continued work. The local financial 

 conditions resulting from the state of the cotton market during the 

 autumn may considerably reduce this figure before it is spent. 



V. SUPERVISION OF MAINTENANCE IN ALEXANDRIA COUNTY, VA., UNDER EXIST- 

 ING AGREEMENT, AND ON THE UNITED STATES EXPERIMENTAL ROADS IN 

 MONTGOMERY COUNTY, MD. 



The maintenance of the experimental roads in Montgomery 

 County, Md., is reported in detail in Department Bulletin No. 257. 

 A system of columnar accounts was devised and used to control 

 costs on each of the several experimental sections. The purpose of 

 this work is to demonstrate comparative costs of maintenance on a 

 large variety of surface treatments. 



The maintenance of earth roads in Alexandria County, Va., for 

 the purpose of obtaining cost data was started under the Division 

 of Construction on December 30, 1911, and was transferred to this 

 division in February, 1914. Under the present memorandum of 

 agreement it will be continued until June 30, 1915. There have been 

 some changes in the route, and for purposes of better distributing 

 the costs and disclosing any differences that might exist in the gen- 

 eral demands of traffic on the different parts of the road it was 

 divided into the following sections: 



Miles. 



1. Mount Vernon Road from Hume Station, on the Washington-Virginia 



Railway, to Nauck over the Old Factory Road 1. 7 



2. Seminary road from county line to Columbia Pike over the Glebe Road_ 3. 15 



3. Hatfield or Fort Myers Road from Hatfield Station, on the Falls Church 



electric line, to Arlington post office, on the Columbia Turnpike 1. 11 



4. Balston Road from Columbia Turnpike northward . 51 



Total 6.47 



Table II shows the entire cost of the work up to January 1, 1915. 



Table II. — Cost of maintenance worlc on 6.5 miles of earth and gravel road in 



Alexandria County, Va. 



Sections. 



Work on 

 surface. 



Work on 

 slopes. 



Work on 

 ditches. 



Miscella- 

 neous 

 and 



general. 



Gravel 

 used. 



Total. 



1 



S76.91 

 192. 04 

 55.00 

 66.05 



$34.25 

 74.25 

 21.75 

 14.25 



$39.25 



219. 75 



16.25 



26.75 



$90.07 



256.26 



53.51 



67.16 



Cu. yds. 

 19.5 

 45.75 

 12.00 

 22.75 



$240. 48 



2 



742. 30 



3 



146.51 



4 



174. 21 







Total for July 1, 1913, to Dec. 31, 1914. 

 Fiscal year 1912 



390. 00 

 153. 44 

 283.68 



144.50 

 61.78 

 89.28 



302. 00 

 169. 88 

 198. 00 



467.00 



49.89 



185.04 





1,303.50 

 434.99 





Fiscal year 1913 





756. 00 











827. 12 



295.56 



669.88 



701.93 





2, 494. 49 









