ROADS AND BRIDGES, JULY 1, 1913—-DEC. 31, 1914. 63 
Jocations; 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 traflic 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______ Tl. abt 
4. Balston Road from Columbia Turnpike northward___________________ 5 yal 
HR (ost sch meme ier cme re a ee ee 6.47 
Table II shows the entire cost of the work up to January 1, 1915. 
TABLE II.—Cost of maintenance work on 6.5 miles of earth and gravel road in 
Alexandria County, Va. 
Miscella- 
F Work on| Work on| Work on| neous Grave 
SECuOnS: surface. | slopes. | ditches. and used. Total. 
general. 
Cu. yds. 
eae a a rai oats (ore ini civic Sea eee es $76. 91 $34. 25 $39. 25 $90.07 19.5 $240. 48 
Des See a igwicinis = omen Se Renee 192. 04 74, 25 219. 75 256. 26 45.75 742.30 
SE ee aoe ars ie os Sec ceiie bee = 55.00 21.75 16. 25 53.51 12.00 146.51 
bbe SOO OBCO AOE DAI OCIA Se ee 66. 05 14. 25 26. 75 67.16 22. 75 174. 21 
Total for July 1913, to Dec. 31,1914.} 390.00 144.50 302. 00 AGTEOO! aseeeeies --| 1,303: 50 
HIS Call py CATRLOUZ is 2 So 5.2155 cin a= Scic- = cs'- 153. 44 61.78 | 169.88 OCD Ieeccdesea- 434. 99 
BiscalayearlOl3 see nocs coe Ses ce eises cece 283. 68 89. 28 198.00 1852042 |=s eee 756. 00 
POLAIRLON Gale sacs anche eee seeeieee 827.12 295.56 669. 88 (KOS) |oeecoossac 2, 494. 49 
