OFFICE OF PUBLIC EOADS. 723 



Shipped 75 miles by rail and hauled an average distance of 3 miles to the road. 

 It possessed an excellent binding capacity and a fair wearing quality. The 

 quantities and costs on this work were as follows: Nine hundred and forty-two 

 cubic yards of gravel, $60.29; excavating the subgrade, $138.94; 727 tons of No. 

 2 stone, $1.70 per ton; 159 tons of No. 3 stone, $1.20 per ton; 50 tons of No. 1 

 stone, $2.30 per ton ; 5 tons of No. 3 stone. $1.80 per ton ; spreading, rolling, and 

 sprinkling, $264.74 ; and shaping the subgrade, $94.40. 



The total cost of the road to the community was $2,797.40. This was the 

 contract price of the road, for which the township furnished the rough grading 

 in addition. The rate per square yard of finished surface was 88.6 cents for 

 3,156 square yards, which makes a cost rate of $7,796 per mile. 



Knoxville, Tenn. — The section of water-bound macadam was built at the 

 same time as the bituminous-macadam section described under that title. It 

 extended on Paitledge Pike from the end of the bituminous section to Lake 

 Street and for 746 feet on Lake Street, where the width increased from 20 feet 

 to 25 feet. The total surface was 4.063 square yards, including intersections. 



One 24-inch by 32-foot vitrified pipe culvert, one 8-inch by 36-foot cast-iron 

 pipe culvert, and one 10-inch by 32-foot vitrified pipe culvert were installed. 

 The work consisted in spiking up and reshaping the old road, after which a 

 new macadam surface of soft limestone was put on. 



Unskilled labor was used at a cost of $1.35 per 10-hour day; double teams cost 

 $3.50 per day; and roller and operator $3 per day. The limestone cost $1.20 

 per cubic yard on the siding. The total cost of this work was $1,464, or 36 

 cents per square yard, which is at the late of $4,224 per mile of 20-foot road. 



GRAVEL EOADS. 



Pell City, Ala. — The work at Pell City, Ala., consisted in grading and sur- 

 facing with gravel 2,800 feet of the Coosa Valley Road, about half of which 

 was new location. Work was begun on May 16, 1911, and finished on June 21, 



1911. 



The finished gravel surface is 12 feet wide, with 5-foot earth shoulders. The 

 road runs through hilly country, but the maximum grade was reduced from 

 14.4 per cent to 6 per cent ; 1,300 cubic yards of material were excavated and 

 graded with plow, slips, and grader. The average haul was 400 feet, and the 

 total cost of grading was .$219.47. 



One reinforced-concrete bridge with 20-foot span was built, at a cost of 

 $137.70. The chert gravel used for surfacing was donated in the pit, and ap- 

 proximately 830 cubic yards were hauled and spread loose to a depth of 8 

 inches, at a total cost of $170.55, or 21.2 cents per cubic yard. The average haul 

 was one-half mile. The gravel was dumped on boards, spread by hand in one 

 course, and dressed with the grader. No roller was used, but travel compacted 

 the gravel to about 7 inches. 



The costs per cubic yard were: Excavating and grading, 15.3 cents; digging 

 the gravel, 7 cents; hauling the gravel, 11.9 cents; and spreading and dressing 

 it, 2.3 cents. The total cost to the community was $.561.82, or 15.05 cents per 

 square yard, which is at the rate of $1,084 per mile. Laborers cost, per 10-hour 

 (lay. $1 ; teams, which were owned by the town, with driver, $2 per day; and 

 foreman, $2. The work comprised 3,733 square yards. 



TiiRKE Mile Crkek. Ala. — A section 700 feet in length of the Telegraph Road, 

 running north from Mobile to Mount Vernon, was surfaced 16 feet wide with 

 sandy gravel hauled S3 miles by rail from Jackson in Clarke County. The work 

 began on February 13, 1911, and was completed on March 14, 1911. 



The road is upon an old causeway through swampy land and is underlaid 

 with a fill of various materials, including sand, sawdust, clay, shells, and 

 rubbish. It is entirely level and was finished to a total width of 18 feet. 



Two huudre<l and four cubic yards of gravel were placed on the road and 

 rolled to u crown of one-half inch to the foot. The county furnished a 3-ton 

 roller. The gravel had low binding value, but could be improved by inspection 

 at the pit. The haul from the siding was three-fourths mile. The cost per 

 cubic yard in j)lnce was $1.93. With labor at $1.50 per 9-hour day and teams 

 at $4 per day the total cost to the coninuinity was .$.395.20. which is at the rate 

 of 31.7 cents per square yard, or $2,979 per mile. The work comprised 1.247 

 square yards. 



