755SECTION 601—SELECTIVE TREE REMOV AL, TRIMMING, AND CLEANUP
601.01 Description
This work shall consist of selectively removing, trimming, and disposing of trees, shrubs, and vegetation to improve sight distance, create open vistas, or improve the appearance and condition of trees as shown on the plans, described elsewhere in the Contract, or as directed by the Engineer. This work shall be accomplished by removing and disposing of rubbish and fallen or undesirable trees and shrubs; selective pruning of desirable trees and shrubs; and spraying the stumps of removed trees with an approved herbcide to prevent sprouting.
601.02 Materials
Herbicide shall conform to Section 244.02(a).
601.03 Procedures
The Contractor shall cut trees and stumps so that remaining stumps are not higher than 4 inches above the ground. Loose roots more than 1 inch in diameter and more than 1 foot in length shall be removed. The Contractor shall only remove those living trees and shrubs the Engineer selects for removal. Trees to be removed shall be felled in a manner that will not damage the trees and shrubs to be preserved. Debris shall be disposed of by burning, chipping, or in accordance with Section 106.04. Burning, if permitted, shall be performed in accordance with Section 107.16. Fires shall be located and supervised so that they will not spread or damage vegetation. If the Contractor elects to chip debris, the Contractor shall use a mechanical chipper and spread the resulting chips thinly and uniformly within the immediate area or dispose of them as directed by the Engineer.
a.Treating Stumps: Stumps of living trees and shrubs shall be coated with an approved herbicide solution within 48 hours after they are cut. The exposed surface of stumps and exposed live roots shall be saturated with herbicide to the point of runoff.
b.Trimming: Branches and limbs that affect sight distance, viewing of the open vista and dead or diseased branches and limbs more than 2 inches in diameter that will hinder the healthy normal growth of trees shall be removed as designated by the Engineer. Cuts shall be made flush at the collar of the supporting trunk or limb. The Contractor’ s operations and equipment used to perform selective trimming shall not damage trees and shrubs that are to remain. The Contractor shall not use climbing spurs or spikes to access trees for trimming. If the Contractor’ s operations cause damage to the bark, limbs, and roots of trees and shrubs that are to remain these shall be repaired, if repairable, or replaced in kind in a manner acceptable to the Engineer. The Contractor shall bear the cost for such repairs and the replacement in kind of those that cannot be satisfactorily repaired.
601.04 Measurement and Payment
Selective tree removal, trimming, and cleanup will be measured in acres of surface area computed to the nearest 0.1 acre and will be paid for at the contract unit price per acre.601.04 756Payment will be made under: —————————————————————————————Pay Item Pay Unit—————————————————————————————Selective tree removal, trimming, and cleanup Acre————————————————————————————— SECTION 602—TOPSOIL
602.01 Description
This work shall consist of applying topsoil in accordance with these specifications and in conformity with the depths and limits shown on the plans or as established by the Engineer. In the case of Class B topsoil this work shall also involve furnishing topsoil to the project site.
602.02 Materials
a.Class A topsoil shall conform to Section 244.02(b)1.
b.Class B topsoil shall conform to Section 244.02(b)2.
602.03 Procedures
a.Submittals: When is specified, the Contractor shall submit soil test reports to the Engineer in accordance with Section 244.02 (b).
b.Preparing Areas to Receive Topsoil: The Contractor shall grade and shape areas designated to receive topsoil and then scarify by disking, harrowing, or other approved methods to a depth of approximately 2 inches unless otherwise designated on the plans or directed by the Engineer. Topsoil shall only be applied when the subsoil is in a loose, friable condition. Subsoil on slopes that have been horizontally grooved in accordance with the plans shall not be loosened.
c.Applying Topsoil: The loose depth of topsoil shall be sufficient to allow the area to conform to the elevations shown on the plans after topsoil settles. If not applying screeded material, the Contractor shall remove large clods, hard lumps, stones larger than 3 inches in diameter, brush, roots, stumps, litter, and foreign material from the area after topsoil has been applied. Where residential or com - mercial yards exist adjacent to the work, the size of the large clods, hard lumps, and stones shall not exceed 3/4 inch in diameter. The Contractor shall hand rake residential or commercial yards to provide a smooth mowing surface. The topsoiled area shall be ready to receive seed, sod, or plants without further soil preparation when the topsoiling operation is complete. Topsoiled areas shall be seeded within 7 calendar days after application of topsoil is completed.
602.04 Measurement and Payment
Topsoil will be measured in acres of surface area computed to the nearest 0.1 acre and will be paid for at the contract unit price per acre for the class and depth specified. For smaller areas, and those areas 601.04
Source: Virginia Road and Bridge Specifications, 2020 Edition. Pages 783–783 of 1,065.