ROADS AND BRIDGES, JULY 1, 1913-DEC. 31, 1914. 19 



crete work was $15.45 per cubic yard for 132 cubic yards, and tbe reinforcement 

 cost $34, making tbe total cost, exclusive of tbe 14-foot semicircular section of 

 corrugated iron, $2,073.40. 



At station 45+50 a concrete arcb bridge was built of tbree 14-foot spans of 

 semicircular corrugated-iron sections, witb concrete abutments, piers, parapets, 

 etc. Tbe cost for tbe concrete work was $19.13 per cubic yard for tbe 195 

 cubic yards. Tbe reinforcement cost $42.50, and tbe removal of an old standing 

 wall was $50, making tbe total cost for the structure, excluding tbe cost of tbe 

 tbree 14-foot span corrugated-iron sections, amount to $3,822.85. 



At station 51+00 a 30-inch corrugated-iron culvert was built, 20 feet long, 

 with concrete end walls. The cost of the 30-inch pipe delivered at St. Johns 

 was $2.94 per linear foot. The cost of the concrete was $33.61 per cubic yard 

 for the 4.5 cubic yards, making a total cost for the culvert of $210.05. 



The total cost for culverts and bridges was $6,970.70. Cement was $1.54 

 per bag delivered at St. Johns. The contract price for excavation was $0.25 

 per cubic yard for 6,2S0 cubic yards, or $1,570, and for surfacing it was $1.10 

 per cubic yard for 880 cubic yards, or $968, which is $0,237 per square yard. 

 The total cost of the road, includiug excavation, surfacing, and drainage 

 structures, was $9,508.70, or $9,102.72 per mile. 



Gates County, Sunbury, N. C. (Section 1). — Two sections of object-lesson 

 road were constructed at Sunbury during the fiscal year, and will be described 

 separately. Work was started on the first section, extending from Sunbury 

 northward toward Suffolk, on October 29, 1913, and completed December 2, 

 1913, with a loss of two days on account of bad weather. The adjacent land 

 is level and the natural soil is a sandy loam from the beginning to station 

 5+75; clay from 5+75 to 15+00; sandy loam from 15+00 to 20+00. A total 

 length of 2,300 feet was graded 30 feet wide in cuts and 25 feet wide in fills. 

 Earth was excavated to the amount of 450 cubic yards, and the average haul 

 was 150 feet, with a maximum haul of 200 feet. 



The road was surfaced for 850 feet to a width of 15 feet, making 1,416 

 square yards. A topsoil type of construction was used, and the surfacing ma- 

 terial was hauled an average distance of 1,700 feet from a pit and spread in 

 one course to a depth varying from 10 to 12 inches before compacting. Ap- 

 proximately 300 cubic yards of topsoil were placed, after which the entire 

 width of the road was harrowed, dragged, and finished with a crown of three- 

 fourths inch to the foot. The binding qualities of the material are good, but 

 the wearing qualities are only fair. 



Cross drains of wood were built at stations 5+75 and 10+00. 



The equipment consisted of a disk harrow, tooth harrow, plank drag, steel 

 drag, drag scraper, two road graders, two plows, and a few carts. The total 

 cost of the road was $382.09, and the principal items of cost were as follows: 

 Clearing and grubbing, $35.18; rough grading, 6,930 square yards at $0.0092 

 per square yard, $63.99 ; fine grading, 6,930 square yards at $0.00087 per square 

 yard, $6.04; culvert excavation, 10 cubic yards at $0,495 per cubic yard, $4.95; 

 cutting poles for culverts, 10 poles at $0.06 per pole, $0.60 ; building wooden 

 culvert, $1.35; loosening and loading top soil, 300 cubic yards at $0.0491 per 

 cubic yard, $14.75; hauling top soil, 300 cubic yards at $0.2047 per cubic yard.. 

 $61.42; spreading top soil, 300 cubic yards at $0.0172 per cubic yard, $5.16; 

 excavating and spreading clay, 450 cubic yards at $0.2056 per cubic yard, 

 $92.55; mixing topsoil, 2,390 square yards at $0.00202 per square yard, $4.83; 

 compacting with tooth harrow, 4,400 square yards at $0.0006 per square yard, 

 $2.64 ; trimming shoulders and ditches, $3.52 ; general expenses, $46.09 ; hauling 



