APPENDIX A.

AMENDED FORM OF SPECIFICATIONS USED FOR

STONE ROAD (MACADAM) CONSTRUCTION
UNDER THE STATE AID LAW.

1. The work to be performed will consist in furnishing all material, tools, machinery and labor necessary and proper for the efficient and proper grading of roadway, side ditches and side banks; laying, spreading and rolling of road metal, and leaving the roadway complete in every manner ready for immediate use.

PLANS, DRAWINGS.

2. The plans and cross-sections on file at the office of County Engineer, N. J., show general location, profile, details and dimensions, and the work will be constructed in all respects according to the above-mentioned plans and cross-sections which form part of these specifications.

3. Any variation of location, profile, size and dimension from that shown on the plans as may be required by the exigencies of construction will in all cases be determined by the Engineer; but the contractor shall not on any pretense, save that of the written order of the contracting parties, including the State Commissioner of Public Roads, deviate from the intent of the plans or specifications.

4. On all drawings, figured dimensions are to govern in cases of discrepancy between scale and figure.

GRADING.

5. Under this head will be included all excavation and embankment required for the formation of the highway; cutting all ditches or drains about or contiguous to the road; removing all fences, walls, buildings, trees and poles; the excavation and embankment necessary for reconstructing cross or branch roads in cases where they are destroyed or interfered with in the formation of the roadway, and all other excavations and embankments connected with or incidental to the construction of the said road.

EXCAVATION.

6. The roadway to the widths as shown on plans to be excavated or built to a curvature to conform to the final surface of the road when finished; the grade from center to sides being as shown on plans.

7. The earth taken from any cut or ditch shall be deposited where Engineer may direct, either within or without the lines of the road, but no earth shall be removed from the line of the road without the order of the Engineer.

EMBANKMENT.

8. Material taken from the excavation, except when otherwise directed by the Engineer, shall be deposited in the embankment; the cost of removing such shall be included in the price paid for excavation. The price paid for excavation will be understood to cover and pay for the entire expense of its removal by any method whatver, including loading, transportation and deposit, in the manner prescribed in these specifications, in the places designated by the Engineer.

9. All material necessarily procured from without the road and deposited in the embankment will be paid for as excavation only.

10. The embankments will be formed in layers of such depth (generally six (6) inches), and the material deposited and distributed in such a manner as the Engineer may direct, the required allowance for settling being added.

SLOPES.

11. Slopes in both embankment and excavation shall be one and one-half (1) horizontal to one (1) vertical, according to slope stakes, unless otherwise ordered.

13. When the excavations and embankments have been brought to a proper depth below the intended surface of the roadway, and the cross-section thereof, conforming in every respect to the cross-section of the road when finished, the same shall be rolled with a ten (10) ton steam-roller until approved by the Engineer. If any depressions form under such rolling, owing to improper material or vegetable matter, the same shall be removed and good earth substituted, and the whole re-rolled until thoroughly solid and to the above-mentioned grade.

14. After the roadbed has been prepared and properly rolled, it shall not be disturbed by any carting or hauling upon the surface.

MACADAM.

First Course of Broken Stone.

15. After the roadbed has been formed and rolled, as above specified, and has passed the inspection of the Engineer and Supervisor, the first layer of broken stone, consisting of one-and-one-half (11) inch stone, or stone that will pass through a ring two (2) inches in diameter, shall be deposited in a uniform layer, having a depth of inches, respectively, for the

and

inch

inches and inch macadam and rolled repeatedly with a ten (10) ton steam-roller until compacted to the satisfaction of the Engineer and Supervisor.

BINDER BETWEEN FIRST AND SECOND COURSE.

16. On the first course of stone a quantity of stone-screenings shall be spread in a uniform layer and the rolling continued until the stone cease to sink or creep in front of the roller; water will be applied in advance of the roller, but not in excess. The quantity and quality of this and all other binding to be at all times subject to the approval of the Engineer.

SECOND COURSE OF BROKEN STONE.

17. The second course of broken stone shall consist of one-and-onequarter (1) inch stone, that is, every piece of stone shall be broken so it can be passed through a ring one and one-half (1) inches in diameter, and no stone shall be more than two (2) inches or less than one (1) inch long. This course is to be spread in a uniform layer of sufficient thicknes to make the macadam at least inches and

inches in depth respectively, when completed, including 2-inch stone and screenings for the surface, and rolled until thoroughly settled into place to the satisfaction of the Engineer and Supervisor.

SURFACE.

18. When the two courses are rolled to the satisfaction of the Engineer and Supervisor, a coat of three-quarter (†) inch stone and screenings is to be spread of sufficient thickness to make a smooth and uniform surface to the road, then again thoroughly rolled until the road becomes thoroughly consolidated, hard and smooth, and a small stone placed on the surface will be broken before being driven into the bed.

19. Rolling to be done by contractor with a ten (10) ton steamroller, approved by the Engineer.

20. Any depressions formed during the rolling, or from any other cause, are to be filled with three-quarter (1) inch stone and screenings, and the roadway brought to a proper grade and curvature as determined by the Engineer.

21. Water must be applied in such quantities and in such manner as to completely fill all the voids between the broken stone, with the binding material saturated so as to secure a set.

MANNER OF ROLLING.

22. In the rolling the roller must start from the side lines of the stone bed and work towards the center, unless otherwise directed. The rolling shall at all times be subject to the directions of the Engineer and Supervisor, who may, from time to time, direct such methods of procedure as in their opinion the necessities of the case may require.

QUALITY OF MATERIAL.

23. All stone must be as nearly cubical as possible, broken with the most approved modern stone-crushing machinery, free from all screenings, earth and other objectionable substances, of uniform size and the same kind and quality, or equally as good in every particular as that shown in the Engineer's office. The one-and-one-quarter (11) inch stone, three-quarter (1) inch and screenings for binder and final finish must be of the best trap-rock, free from loam or clay.

24. The contractor must furnish samples of the kind of stone to be used in the work to the Engineer before the opening of the bids.

SHOULDERING.

25. A shoulder of firm earth or gravel is to be left or made on each side, extending at the same grade and curvature of road to side ditches or gutters. This shoulder is to be thoroughly rolled for its entire width on each side of the stone bed; this shoulder to never be of less width than seven (7) feet from the stone bed, where the width of the road will admit.

26. When necessary the side ditches or gutters are to be excavated as per stakes furnished by Engineer, to give an easy flow of water, so that no water shall be left standing on the road or in the ditches, for all of which no extra payment will be made.

UNDERDRAINS.

27. Underdrains, if found necessary, shall be constructed by the contractor (at prices named in bids) of good four (4) inch sole tile, laid upon a board of not less than one (1) inch in thickness and six (6)