In-Depth Revi ew 2022 Section 201 137 SECTION 201
201.01 Description
This work consists of clearing, grubbing, removing, and disposal of vegetation and debris.
201.02 Equipment
Reserved.
201.03 Materials
Reserved.
201.04 Construction Requirements
The Engineer will establish the right of way and construction limits and designate the items to remain. Remove trees and stumps located within the boundaries of the roadbed to a depth of 3 feet below the final dirt grade. Remove trees and stumps located outside the boundaries of the roadbed and within the construction limits to a depth of 18 inches below the final dirt grade. Prune branches and remove loose bark on trees or shrubs that were broken, cut, or scarred during construction activities. Trim tree branches extending over the roadbed to give a clear height of 20 feet, or according to local ordinances, whichever is greater. The Engineer may allow burning of perishable materials when permitted under applicable laws and ordinances. Provide a watch person on site to monitor the burning of perishable materials. Backfill and compact all cavities with a suitable material, except in areas to be excavated. Compact backfill material within the boundaries of the roadbed as specified in Section 203.04 E.2, “Compaction Control, Type A”. Compact backfill material outside the boundaries of the roadbed as specified in Section 203.04 E.4, “Compaction Control, Type C”.
201.05 Method of Measurement
The Engineer will measure as specified in Section 109.01, “Measurement of Quantities” and as follows: The Engineer will measure stumps by the average diameter of the stump at ground level. Stumps 8 inches in diameter or less will be included in the bid item “Clearing & Grubbing” or “Removal of Trees & Brush”. The diameter of trees will be measured at a height of 24 inches above the existing ground. Trees will be classified based on Table 201 -01: In-Depth Revi ew 2022 Section 201 138 Table 201 -01 Schedule of Sizes Diameter (Inches) Pay Item Designation 8 or less Clearing & Grubbing; Removal of Trees & Brush Over 8 ≤ 12 Removal of Trees 10 IN Over 12 ≤ 24 Removal of Trees 18 IN Over 24 Removal of Trees 30 IN
201.06 Basis of Payment
Pay Item Pay Unit Clearing & Grubbing Acre or Lump Sum Removal of Trees Acre Removal of Trees __IN Each Removal of Trees & Brush Lump Sum Stump Removal Each Tree removal bid items include the cost of removing stumps created when cutting trees. The “Stump Removal” bid item applies only to pre-existing stumps. If no specific bid items for tree and stump removal are included in the contract, include the cost of tree and stump removal in the contract unit price for “Clearing & Grubbing” or “Removal of Trees & Brush”. Such payment is full compensation for furnishing all materials, equipment, labor, and incidentals to complete the work as specified. In-Depth Review 2022 Section 202 139 SECTION 202 REMOVALS
202.01 Description
This work consists of demolishing, removing, salvaging, and disposing of items not designated to remain, salvaging designated materials, and backfilling resulting cavities.
202.02 Equipm Ent
Reserved.
202.03 Materials
Reserved.
202.04 Construction Requirements
A.General. At the end of each day provide a smooth transition between areas where pavement has been removed and areas from which traffic can enter the removal area. Replace items designated for salvage that are lost or damaged by work activities with new items, meeting the appropriate specifications, at no additional cost to the Department. Begin and end removal of existing bituminous and concrete surfaces at a joint or create a smooth, vertical plane along the entire length of the remaining surface. Backfill and c ompact material used to fill cavities within the boundaries of the roadbed as specified in Section 203.04 G .2, “Compaction Control, Type A”. Backfill and compact material used to fill cavities outside the boundaries of the roadbed as specified in Section
203.04 G.4, “Compaction Control, Type C” to the same level as the surrounding undisturbed
ground. Before backfilling over concrete slabs that will remain in place, break up the slabs to facilitate drainage.
B.Removal of Structures and Box Culverts. If bridge elements are designated for salvage, matchmark the elements and transport them to the location specified in the contract. Remove portions of structures within the limits of a new structure to accommodate the construction of the new structure. In other areas, remove existing substructures to one foot below the existi ng stream bottom and remove those parts outside the stream to one foot below final ground surface. When removing a bridge, perform asbestos inspection and testing and submit SFN 17987 “Asbestos Notification of Demolition and Renovation” to NDD EQ at least 10 working days before demolition. If asbestos is discovered, the Engineer will issue a contract revision for work related to the asbestos.
Source: North Dakota Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 172–173 of 550.