OFFICE OF PUBLIC BOADS. 855 



is Siindy. Road machines, a heavy disk harrow, and slat-bottom wagons were 

 used. Similar materials were used and the same methods followed as in build- 

 ing' section 1. The total length was 3,0(K) feet. This section was originally 

 built by contract in 1910, but, on account of an excess of unmixed clay, the 

 road had become badly rutted and the object of this work was to demonstrate 

 the necessity of thoroughly mixing the sand and clay, which had not been done 

 when the road was built. The length of section rebuilt was :>,(X>0 feet, the 

 width 12 feet, the total width of the roadway 20 feet, and the total area sur- 

 faced 4,000 square yards. The crown was made 1 inch to the foot. The total 

 cost was $102, and the rate per mile, $180. Labor cost $1.25 per day and 

 teams, $4,50 per day. 



Taleotton, Ga. — Work was begun on November 15, 1911, on a sand-clay 

 road called the Centerville Koad, leading from Talbotton toward Centerville, 

 but was discontinued on January 6, 1912, before completion, with the under- 

 standing that it would be resumed early in 1912. The material is red clay, 

 containing pipe clay and a small percentage of sand. The foundation was 

 made of nonslaking clay containing some pipe clay, and the surface was of 

 hne. loamy sand. The maximum cut was 4.5 feet, the maximum fill 4 feet, 

 and the grade was reduced from 9 to 4* per cent. For carrying out the work 

 picks, plows, wheel scrapers, slat-bottom wagons, a disk harrow, and a split- 

 log drag were used. The total length graded was 3,525 feet, the width 30 feet, 

 and the area 11.750 square yards. The length surfaced was 1,950 feet, the 

 width 14 feet, and the area 3,030 square yards. The bottom course was 4 

 inches of clay and the top course 8 inches of sand. The materials were mixed 

 by continued plowing and harrowing. The crown was made i inch to the 

 foot. The earth excavation amounted to 3,290 cubic yards and the surfacing 

 material to 675 cubic yards. The averaiie haul from the pit was 9S5 feet, and 

 the material was spread with shovels. Two 16-inch vitrifiod-pipe culverts and 

 one IS-inch corrugated-metal culvert, each 30 feet long, and also one plank 

 culvert 5 feet by 6 feet were built. The gang on this work consisted of a 

 superintendent, 3 guards, 17 convicts, and 15 mules, and the value of the 

 equipment was carefully estimated to be $6,000. 



The cost of the work to the county per month was estimated as follows: 

 Superintendent. $75; 2 guards. $60; 1 guard, $37.50; provisions, $115.90; mis- 

 cellaneous supplies. .$11.97; incidentals, $7.79; hay, at $28 per ton, $50; oats, at 

 $0,635 per bushel, $161.92 ; ground feed. $34 ; transportation, freight, etc., $10.19 ; 

 depreciation on $G,000 at 10 per cent. $60; and interest on the equipment at 

 per cent, $30, making a total estimated monthly cost of $650.27, or, for 25 work- 

 ing days, an average cost of $26 per day. 



Liberty, Miss. — A sand-clay surface was built on the upper Gloster Road, 

 which runs westward from the junction toward Gloster. Work was begun on 

 August 18, 1911, and completed on September 6, 19li, with 4 days' delay on 

 account of unfavorable weather. The natural soil from station to station 

 5 is s.md; from station 5 to station 12. clay; and from station 12 to station 

 25, sand-clay. At station 12-f90 a 15-inch vitrified-pipe culvert 20 feet long 

 was built, with cemented joints. The total length graded was 2.500 feet, and 

 the width in cuts IS feet and in fills 20 feet, making the area graded 5.122 

 Sfpiare yards. The length surfaced was the same, the width surfaced 15 feet. 

 an<l the area 3,611 square yards. The finishetl roadway was made 20 feet 

 wide from station to station 5 and IS feet wide from station to station 25. 

 The compacted depth of surfacing material w.is 6 inches, and the crown IJ 

 inches to the foot. Five hundred and ninety cubic yards of earth excavation 

 was hauled an average distance of 150 feet and a maximum distance of 400 

 feet. The average cut was 0.7 foot and the maximum cut 1.2 feet. The 

 average fill was 0.5 foot and the maxinuim fill 1.6 feet. The gr.ide was re<luced 

 from 5.8 per cent to 3 per cent. One Innidred and ninety-one cubic yards of 

 surfacing material was hauled 2.100 foet from the pit. A road machine and 

 4 slip scrapers were used. The surf.icing material was sjind of good wearing 

 qii.ility, containing 10 per cent of gravel. 



The cost of the work was $1S7.81, the cost per square yard $0,052, and the 

 rate per mile .$306.2.5. Labor cost .$().. 50 for convicts. $1 for hired men. $1 for 

 county teams, and .$3 for hired trains. About .50 per cent of the work was 

 done l)y county and convift labor, 'i'he principal items of cost were : Excavation 

 $04.43; shaping the subgrade. .$.30; culvert r>ipe. $8.50; labor on the culvert. $2; 

 cement. $0.."0; clearing. .$4.75; hauling from the pit. $.34.25: spreading. $6..30; 

 mixing 1,666 square yards of material. $4.45; and surveying, $2.63. 



