Item 101 - Removal of Structures and Obstructions
101.1 Description
This item shall consist of the removal wholly or in part, and satisfactory disposal of all buildings, fences, structures, old pavements, abandoned pipe lines and any other obstructions which are not designated or permitted to remain, except for the obstructions to be removed and disposed off under other items in the Contract. It shall also include the salvaging of designated materials, and backfilling the resulting trenches, holes and pits.
101.2 Construction Requirements
101.2.1 General
The Contractor shall perform the work described above within and adjacent to the roadway, on Government land or easement, as shown on the Plans or as directed by the Engineer. All designated salvable material shall be removed, without unnecessary damage, in sections or pieces which may be readily transported, and shall be stored by the Contractor at specified places on the project or as otherwise shown in the Special Provisions. Perishable material shall be handled as designated in Subsection 100.2.2 Nonperishable material may be disposed off outside the limits of view from the project with written permission of the property owner on whose property the material is placed. Copies of all agreements with property owners are to be furnished to the Engineer. Basements or cavities left by the structure removal shall be filled with acceptable material to. the level of the surrounding ground and, if within the prism of construction, shall be compacted to the required density.
101.2.2 Removal of Existing Bridges, Culverts, and other Drainage Structures
All existing bridges, culverts and other drainage structures in use by traffic shall not be removed until satisfactory arrangements have been made to accommodate traffic. The removal of existing culverts within embankment areas will be required only as necessary for the installation of new structures. Abandoned culverts shall be broken down, crushed and sealed or plugged. All retrieved culvert for future use as determined by the Engineer shall be carefully removed and all precautions shall be employed to .avold breakage or structural damage to any of its part. All sections of structures removed which are not designated for stockpiling or re-laying shall become the property of the Government and be removed from the project or disposed of in a manner approved by the Engineer.
Unless otherwise directed, the substructures of existing structures shall be removed down to the natural stream bottom and those parts outside of the stream shall be removed down to at least 300 mm below natural ground surface. Where such portions of existing structures lie wholly or in part within the limits for a new structure, they shall be removed as necessary to accommodate the construction of the proposed structure.
Steel bridges and wood bridges when specified to be salvaged shall be carefully dismantled without damaged. Steel members shall be match marked unless such match marking is waived by the Engineer. All salvaged material shall be stored as specified in Subsection 101.2.1.
Structures designated to become the property of the Contractor shall 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, shall be completed prior to placing the new, work, unless otherwise provided in the Special Provisions.
101.2.3 Removal of Pipes Other than Pipe Culverts"
Unless otherwise provided, all pipes shall be carefully removed and every precaution taken to avoid breakage or damaged. Pipes to be relaid shall be removed and stored when necessary so that there will be no loss of damage. before re-laying. The Contractor shall replace sections lost from storage or damage by negligence, at his own expense.
101.2.4 Removal of Existing Pavement, Sidewalks, Curbs, etc.
All concrete pavement, base course, sidewalks, curbs, gutters, etc., designated for removal, shall be:
- Broken into pieces and used for riprap on the project, or
- Broken into pieces, the size of which shall not exceed 300 mm in any dimension and stockpiled at designated locations on the project for use by the Government, or
- Otherwise demolished and disposed off as directed by the Engineer. When specified, ballast, gravel, bituminous materials or other surfacing or pavement materials shall be removed and stockpiled as required in Subsection 101.2.1, otherwise such materials shall be disposed off as directed.
There will be no separate payment for excavating for the removal of structures and obstructions, or for backfilling and compacting the remaining cavity.
101.3 Method of Measurement
When the Contract stipulates that payment will be made for removal of obstructions on lump-sum basis, the pay item will include all structures and obstructions encountered within the roadway. Where the contract stipulates that payment will be made for the removal of specific items on a unit basis, measurement will be made by the unit stipulated in the Contract.
Whenever the Bill of Quantities does not contain an item for any aforementioned removals, the work will not be paid for directly, but will be considered as a subsidiary obligation of the Contractor under other Contract Items.
101.4 Basis of Payment
The accepted quantities, measured as prescribed in Section 101.3, shall be paid for at the Contract unit price or lump sum price bid for each of the Pay Items listed below that is included in the Bill of Quantities which price and payment shall be full compensation for removing and disposing of obstructions, including materials, labor, equipments, tools and incidentals necessary to complete the work prescribed in this Item. The price shall also include backfilling, salvaging of materials removed, their custody, preservation, storage on the right-of-way and disposal as provided herein.
Payment will be made under:
| Pay Item Number | Description | Unit of Measurement |
|---|---|---|
| 101 (1) | Removal of Structures and Obstruction | Lump Sum |
| 101 (2) | Removal of actual structures/obstruction | Each |
| 101 (3) | Removal of actual structures/obstruction | Square Meter |
| 101 (4) | Removal of actual structures/obstruction | Linear Meter |
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