100 Page 124100 – 740 DIVISION II - CONSTRUCTION DETAILS PART A EARTHWORK
100.1DESCRIPTION
This work consists of clearing, grubbing, removing, and disposing of vegetation and debris within the limits of the right-of-way, borrow, and easement areas except objects designated to be removed in accordance with other sections of these specifications.
100.2MATERIALS (Not Specified)
100.3CONSTRUCTION REQUIREMENTS
Before clearing activities begin, the Contractor will contact the Engineer to determine the limits of clearing for the project. The Engineer will establish right-of-way lines and construction lines and designate trees, shrubs, plants, and other objects to remain. Vegetation and objects designated to remain will be preserved free from injury or defacement. If the Contractor injures or defaces any item designated to remain, the Contractor will replace the designated item with an item of the same size and type at the Contractor’s expense. Surface objects, trees, stumps, roots, and other protruding obstructions designated for removal will be cleared and grubbed, including mowing, as required. When authorized, the Contractor may leave stumps and nonperishable solid objects extending more than 3 feet below subgrade or slope of embankments, provided the stumps and nonperishable solid objects do not extend more than 4 inches above the finished ground line or low water level. In embankment areas, holes resulting from the removal of obstructions will be backfilled with suitable material and compacted in accordance with Section 120.3 B.3. Burning, if permitted, will be done in accordance with applicable laws, ordinances, and regulations. Perishable material will be burned under the Contractor’s constant care and in a manner that will not jeopardize the surrounding vegetation, adjacent property, or anything designated to remain. Materials, debris, residue from burning, and unburned perishable materials will be satisfactorily disposed of. If disposal is by burial, a cover of at least 12 inches will be provided and the area will be shaped to present a pleasing appearance. If the disposal location is off the project, the Contractor will make arrangements with property owners in writing for obtaining suitable disposal locations. These sites will be outside the limits of view from the project. The cost involved will be incidental to the corresponding items listed in Section 100.5 . Timber which can be utilized for logs, posts, poles, ties, or cordwood will be considered as merchantable timber and will be the property of the previous landowner. When specified in the contract, the timber will be trimmed, cut into merchantable lengths, and neatly piled adjacent to the right-of-way at designated locations. The Contractor will not be required to cut merchantable timber into lengths shorter than 16 feet. 100 Page 125Low hanging, unsound, or unsightly branches on remaining trees or shrubs will be removed. Branches of trees extending over the roadbed will be trimmed to give a clear height of 20 feet above the roadbed surface. Branches of trees extending over the sidewalk will be trimmed to give a clear height of 8 feet above the sidewalk surface. Trimming will be done in accordance with good tree trimming practices.
100.4METHOD OF MEASUREMENT
Measurement for clearing and grubbing trees and stumps over 6 inches in diameter will be on a per each basis by actual count of such trees and stumps removed and disposed of. The diameter of trees and stumps will be measured 2 feet above the ground. Old stumps extending less than 2 feet above the ground will not be counted. No more than one tree will be counted from any stump. When the contract stipulates that payment will be made for clearing on a lump sum basis, no separate measurement will be made.
100.5BASIS OF PAYMENT
The removal of trees and stumps will be paid for at the contract unit price per each. When the removal of trees and stumps is not included in the contract, the removal of trees and stumps will be incidental to the lump sum price for clearing. The lump sum payment for clearing will be full compensation for removal and disposal of vegetation and debris. 110 Page 126110 REMOVAL OF STRUCTURES AND OBSTRUCTIONS
110.1DESCRIPTION
This work consists of removal and disposal of buildings, fences, structures, pavements, abandoned pipelines, pipe culverts, other obstructions which are not designated or permitted to remain, and other obstructions which are not removed and disposed of under other items in the contract. This work will also include the salvaging of designated materials and backfilling the resulting trenches, holes, and pits.
110.2MATERIALS (Not Specified)
110.3CONSTRUCTION REQUIREMENTS
Designated salvageable material will be carefully removed, in sections or pieces which may be readily transported, and will be stored at places specified. Unusable perishable material will be destroyed. Nonperishable material may be disposed of outside the limits of view from the project with written permission of the property owner. Pipe will be removed and disposed of as nonperishable material. Basements or cavities left by structure removal will be filled to the level of the surrounding ground and, if located in an area of an embankment or other structure, will be compacted under the same specification as the embankment. In other areas the fill material will be compacted as necessary to preclude undue settlement and will be slightly mounded. Concrete basement floors and similar structures will be broken up to prevent entrapment of water. The Contractor will be responsible for the disconnection and capping of all utility services to the building. Bridges, culverts, and other drainage structures used by traffic will not be removed until satisfactory arrangements have been made to accommodate traffic. The substructures of existing structures will be removed down to the natural stream bottom. Those parts outside the stream will be removed down to 1 foot below the finished ground elevation. When portions of existing structures are within the limits of a new structure, these portions will be removed as necessary to accommodate the construction of the proposed structure. All designated salvageable steel or wood bridges will be dismantled without damage. Structures designated to become the property of the Contractor will be removed from the right-of-way. Blasting or other operations necessary for the removal of an existing structure or obstruction, which may damage new construction, will be completed prior to placing the new work. Pipe to be reset will be removed, transported to the site of installation, and stored so there will be no damage before resetting. The Contractor will be required to replace sections of pipe damaged by negligence at the Contractor’s own expense. In removing curb, gutter, sidewalk, and similar structures, where portions of the existing structures are to be left in the finished work, the old structure will be removed to an existing joint or sawed and chipped to a true line with a vertical face.