YAMHILL COUNTY
In Yamhill County the State Highway Department has co-operated with the County in the grading and paving of 3.2 miles between Rex and Newberg and of 4 miles between Sheridan and McMinnville. The total expenditure on this work amounts to $147,000.00 of which the County has paid $18,273.49.
An effort has been made to secure Federal Aid in the construction of a section of the Portland-Tillamook Highway from Grande Ronde west. With this in view, the necessary surveys have been made, and it is expected that Federal Aid will be secured so that the construction may be undertaken during the 1919 season.
Sheridan Paving—1917
In 1917 the Highway Department constructed with its own forces and equipment 1.8 miles of concrete pavement from Sheridan east on the Sheridan-McMinnville Road. This pavement was 16 feet wide, 61⁄2 inches thick at the center and 51⁄2 inches thick at the edges. The mix used was a 1 : 11⁄2 : 3.
In connection with the paving there was a considerable amount of grading, the total expenditure for grading, culverts, etc., being $5,651.70. The cost of the 1.8 miles of paving was $31,432.99, the unit cost being $1.82 per cubic yard.
Yamhill County co-operated in the payment for this work to the amount of $10,000.00. A complete statement of the costs on this work is given below.
COST STATEMENT—SHERIDAN PAVING—1917
| Quantity | Item | Cost | Unit Cost | |
| 2498 cu. yds. Common Excavation | } | |||
| 652 cu. yds. Intermediate Excavation | $ 4,442.85 | $ .906 | ||
| 1750 cu. yds. Solid Rock Excavation | ||||
| 182 lin. ft. 12-inch Culvert Pipe | 283.90 | 1.56 | ||
| 118 lin. ft. 18-inch Culvert Pipe | 276.00 | 2.34 | ||
| 44 lin. ft. 24-inch Culvert Pipe | 134.20 | 3.05 | ||
| 290 lin. ft. 6-inch Porous Drain Tile | 52.25 | .18 | ||
| 25 cu. yds. Class “C” Concrete | 462.50 | 18.50 | ||
| 17,150 sq. yds. Concrete Pavement | 31,198.87 | 1.82 | ||
| 5050 lin. ft. Expansion Joints | 234.12 | .046 | ||
| Total Construction Cost | $ 37,084.69 | |||
| Engineering | 1,131.35 | |||
| Grand Total Cost | $ 38,216.04 | |||
| Paid by State | $ 28,216.04 | |||
| Paid by County | 10,000.00 | |||
| Total | $ 38,216.04 | |||