The pavement, after being struck off, was finished by the roller and belt method; being rolled from two to four times, according to the condition of the concrete and later belted with eight and ten inch belts. The eight inch belt being used first. By using this method of finishing, we were able to eliminate the use of skilled labor, which showed a material saving in the finishing item, and at the same time secured a very satisfactory surface.
As soon as sufficiently hardened, the pavement was covered with earth from the roadside and kept moist for at least one week while curing. The earth covering was later removed by means of an ordinary road grader, when ready to be opened for traffic, the elastite joints being trimmed at the same operation.
A short stretch of pavement was left out at Deer Creek to allow a fill to settle during the winter rains. In conformity with our general practice, sufficient crushed rock was left on the job to complete this stretch and make repairs.
Elastite joints were placed every thirty feet and extended the entire width and depth of the pavement. Continuous forms were used on a portion of this pavement and were found to be much superior to the ordinary type, and the Department has adopted the continuous form for future work. These forms are made by using two pieces of form lumber 11⁄2 inches by 51⁄2 inches nailed together. The joints are lapped one-half the length of the stick. The finished form is 3x51⁄2 inches and is easily placed on either tangents or sharp curves.
The concrete was mixed with a sixteen cubic foot Koehring Mixer equipped with bucket and boom. The plant is owned by the Department.
The grading was paid for by Yamhill County and the crusher, roller, grader, and scarifier were also furnished by them free of charge. Earth shoulders were built along the pavement by means of road grader.
Mr. J. M. Baker was Superintendent of Construction on this work.
COST STATEMENT—2.2 MILES, 16-FOOT CONCRETE PAVEMENT, EAST
OF SHERIDAN—BUILT IN 1918
| Quantity and Item | Total Cost | Unit Cost | |
| Grading | $ 1,853.07 | ||
| 19,566 sq. yds., 1 : 2 : 31⁄2concrete pavement Average thickness 6 inches | 36,378.01 | $ 1.86 | |
| 6,192 lin. ft., Expansion Joints | 247.68 | .04 | |
| 140 cu. yds., Broken Stone Macadam | 420.00 | 3.00 | |
| Total Cost of Construction | $ 38,898.76 | ||
| Engineering | 1,166.85 | ||
| Grand Total Cost | $ 40,065.61 | ||
| 5099 bbls. Cement used on this work at a cost of $13,299.00 F. O. B. Work. | |||
| 15 yds. of Sand and 120 yds. broken stone left stored on job. | |||