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Drawing No. 3, the difference in cost shall be added to or deducted from the contract sum. Such alteration to be ordered in writing. A drain is to be cut along the bottom of slopes of cuttings, as shown in drawings, and in all cases they must be provided with a proper outfall of at least the same size. Oatchwater drains are to be dug above the top of one slope of cuttings, at a distance of from a quarter of a chain to a chain from the top of slopes; these ditches are not to average less than 5 cubic feet per lineal yard, and are to be true and regular to the inclinations directed; no stumps or roots to be left in them. The embankments must be carried forward uniformly of the proper shape, with such aD addition to the heights and widths as a due allowance for the shrinking of the material requires, so as to avoid as far as practicable the necessity for making subsequent, additions either to the heights or widths of the embankments, to bring them to the correct levels and dimensions. Whenever the foundation of an embankment is on sloping ground, the Contractor, if required, must at his own expense cut steps and benches under thebase of the embankment. The top of the embankment at formation level is to be 10 feet wide; the slopes to be trimmed off to an inclination of one and a half horizontal to one vertical, and to be maintained full and true until the completion of the contract. The Contractor shall, unless otherwise directed by the Engineer, take care not in any way to interfere with or divert the existing drainage areas, and shall leave such stops and stanks in the side cuttings, and take such other precautions, as the Engineer shall think necessary for that purpose. The side cuttings must he made in a regular and approved manner, and, unless specially authorized, not less than 10 feet from the foot of any embankment; and when material is run to spoil it must be done in such a way and in such places as shall be approved by the Engineer. Behind and around culverts and abutments of bridges the embankments shall be wheeled in and carefully rammed. Where shown on drawings or longitudinal section the slopes of embankments shall be pitched with approved stone., and not less than 9 inches thick, and to a height of 2 feet above flood-line; to be carried round the ends of the embankments 20 feet on the upper side and 10 feet on the lower side; the bottom edge of the pitching to be sunk into the ground at kast 1 foot; the pitching to be backed with broken stone or shingle at least 6 inches thick. Ditches and Drains. 8. When the line crosses swamps of a peaty nature, catchwater drains are to be cut on the upper side of the line obliquely across the valleys, so as to tap the surface water. These ditches shall not exceed, on an average, one and one-third cubic yards, per lineal yard, and are to be made at the commencement of the works, and cleaned out from time to time as may be ordered. Stream Diversions. Stream diversions at 1 mile 73 chains, 1 mile 76 chains, and 3 miles 24 chains to be grubbed out, as described for drains, and excavated with regular slopes and inclinations as will be set out. Hoad Alterations. 9. At the places shown on the plan and sections, and wherever necessary, the present roads are to be diverted. All such diversions and road approaches to the level crossings are to be completed in a convenient, substantial, and proper manner, with the necessary drains, water-tables, and side slopes. Such approaches and road diversions are to be formed with an inclination not steeper than 1 in 12 for public roads, and 1 in 12 for private roads, except where the present inclination exceeds these rates, in which case the inclination of the new road shall not exceed that of the present road, unless, in the opinion of the Engineer, a steeper is unavoidable. Public roads and approaches to first-class crossings are to be metalled with coarse river gravel or approved hard stone, laid on and spread as directed, so as to average 22 cubic yards per lineal chain of road. Private roads are to be metalled with coarse river gravel or broken stone of approved quality, laid on and spread as directed, so as to average 9 cubic yards to a lineal chain. The whole of the metal is to be broken to pass through a 2|-inch ring. One first-class, twelve second-class, and four third-class crossings, with two cattle-stops to each crossing, as per Drawing No. 22, shall be constructed at public and private roads where directed. They shall be carefully placed as to line and level, and finished in strict conformity with the drawing and the notes thereon. Each level crossing shall be metalled for a length of 66 feet on each side of the centre line, as above specified for the roads, and tile or timber box drains shall be put in the formation ditches where necessary for the drainage of the line or road. One pair of malleable iron tubular or other approved gates, 12 feet wide, hung to strong posts, and furnished with bolts and padlocks, shall be provided and hung at a private crossing where directed; also two turnstiles of approved pattern. Cattle-stops, as shown in Drawing No. 22, are to be put in where directed, not exceeding five in number, besides those at level crossings. Twenty-two private crossings, with guard balks same as third-class crossings, and metalled for a distance of 33 feet on each side of the centre line, shall be placed where directed. The metalling shall be 12 feet wide and 9 inches thick, or of equal quantity otherwise disposed as to width and thickness. Box drains or drain pipes, as shown in drawings, shall be placed where directed. Materials. 10. Except where otherwise specified, all the materials used under this contract shall be of the following kinds and descriptions : — All masonry to be of rubble laid in cement mortar. Bond stones, 2 feet long, or to go right through the wall, to be put in every square yard of both face and back of work. All spalls are to be
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