OFFICE OF PUBLIC ROADS. 729 



done with 9 Inches of gumho and from 1 to 2 inches of sand. About 400 feet 

 of the road required no surface treatment. The teaming and rolling compacted 

 the surface material to a thiclvuess of 7 inches. 



The machinery used on this worli included 2 road graders, 1 drag, 6 drag 

 scrapers, and S wheel scrapers. Labor cost $2 per 8-hour day and teams $4 

 and $4.50. The total cost to the community was $067.45, which was at the rate 

 of 14.2 cents per square yard or $1,334.90 per mile. The work comprised 4,693 

 square yards. 



CoFFEEViLLE, Miss. — This is a section 1 mile long of the Grenarda Road, run- 

 ning west toward Grenarda. The work was begun on February 3, 1911, and 

 finished on April 13, 1911. The road runs through slightly hilly country and ia 

 underlaid with sand and clay. Seven lines of cross drains of 15 and 24 inch 

 vitrified r)ipe were required. Each pipe culvert was finished with end walls 

 of brick laid in cement mortar. A road machine and S drag scrapers were used 

 in the excavation, which amounted to 3,410 cubic yards and cost 20.S cents 

 per cubic yard. The grade was reduced from 14.2 per cent to 7.S per cent, and 

 the road was graded 24 feet wide for the first half mile and 22 feet wide for 

 the remainder of the distance. The average length of the haul for the exca- 

 vation was 200 feet. One hundred and forty-eight cubic yards of sand were 

 hauled at a cost of 42 cents per cubic yard and spread on the road at a cost 

 of 4.7 cents per cubic yard. The sand and clay were mixed with a harrow. The 

 cost of the items entering into the construction of the culverts was as follows: 

 107^ feet of 15-inch vitrified pipe, $29.02; 125 linear feet of 24-iuch vitrified 

 pipe, $93.75; labor and hauling, $22.15; 8,400 brick, $54.60; 60 sacks of cement, 

 $.30; hauling, $8.45; and masons and heli^ers, $51.70. 



The total cost of this road to the community was $1,289.41, which is at the 

 rate of 13.7 cents per square yard. The labor cost $1 per day of 10 hours and 

 teams $2.50 per day. The work comprised 9,387 square yards. 



GuLFPORT, Miss. — The work was commenced here on October 6, 1910, and was 

 completed on November 12, 1910. The road is the Harrison County race track, 

 one-half mile in length, and was graded and surfaced with sand clay 50 feet 

 wide. The surrounding country is level and swampy. The subsoil presented 

 swamp conditions with heavy vegetable mat, hummocks, and sand. One 12-inch 

 box culvert was built to dram the oval within the track. Earth was axcavated 

 to the amount of 4,500 cubic yards at a contract price of 35 cents per cubic yard, 

 making a total of $1,575. Shaping the subgrade cost $60.85. The surface was 

 finished with a 0.5 per cent grade. The grading was done with 1 grader, 4 

 drag scrapers, 3 wheel scrapers, and wagons. It required 1,759 cubic yards of 

 clay, which were obtained at Soucier. 19 miles north of Gulfport. The clay was 

 taken out with a steam shovel and loaded on the cars, and a total of 99 cars 

 were used at a cost, on the siding, of $891. The charge for the clay was $4 per 

 car plus $5 for freight. Hauling from the car to the road cost 49.5 cents per 

 cubic yard, and spreading 24.4 cents per cubic yard, making a total cost of the 

 material, per cubic yard in place, of $1.25. The track was finished with a drag 

 and rolled with a 7-ton horse roller. Rolling and dressing cost $117. 



The total cost to the community was $3,560, which is at the rate of 24.3 cents 

 per square* yard, or $7,120 per mile for a 50-foot road, which is equivalent to 

 $2,278 per mile for a 16-foot road. These costs are based on labor at $1 per 

 day of 10 hours, and on teams without drivers, at $3 per day. The work com- 

 prised 14,667 square yards. 



Elizabeth City, N. C. — The work commenced here on July 5, 1910, and was 

 finished on July 28, 1910. The road improved was the Norfolk Stage Road, 

 running northeast from Elizabeth City toward Norfolk. The adjacent land 

 is generally level, with some bottom land. The subsoil was loamy .«aud 

 and fine sand with silt. The road improved was 1 mile in length, graded to 

 a width of 30 feet in the cuts and 24 feet in the fills. One steel grader, 1 

 dump wagon, and four 2-wheel dump carts were furnished by the local authori- 

 ties. No clay suitable for sand-clay construction could be found in this vicinity, 

 although an extensive search was made, and consequently the material found on 

 the road was used to construct the sui'face, with the exception of a section 200 

 feet long, which was spread with heavy silt-bearing sand hauled about three- 

 fourths mile. This treatment was somewhat in the nature of an experiment. 

 Two wooden culverts were built at a cost of $50.20. The total amount of exca- 

 vation was 1,208 cubic yards and cost 21.6 cents per cubic yard. The grade 

 was reduced from 3 per cent to a maximum of 1 per cent. 



