Abu Dhabi, United Arab Emirates. STANDARD CONSTRUCTION SPECIFICATIONS (PART 1 - ROADS, Second Edition 2020)

Material obtained from clearing, grubbing, and removal of topsoil shall be disposed of as approved
by the Engineer. Materials to be disposed of shall generally be hauled to a waste site obtained and
provided by the Contractor or placed in borrow pits or other suitable places and covered up with soil
or gravel, with full coordination and approvals from the concerned authorities. Trees and brush to
be removed may be chipped in place. Topsoil to be reused, shall be stockpiled.

Burning of material shall only be permitted by prior written approval of the Engineer. All statutory
provisions with regards to environmental constraint and air pollution shall be carefully observed.

2.3

Removal of Structures and Obstructions

2.3.1

Description

This section describes the removal and disposal of structures that obtrude, encroach upon, or
otherwise obstruct the work.

2.3.2

Construction Requirements

2.3.2.1

General

Contractor shall remove and dispose of all buildings, foundations, bridges, drainage structures,
pavement, railings, barriers, fences and other obstructions within the limits of the work, except items
designated to remain and utilities and obstructions to be removed under other provisions of the
Contract.

All designated salvage material shall be removed, without damage, in sections or pieces that may
be readily transported, and shall be stored by the Contractor or transported to the Owner warehouse
by the Contractor, as directed by the Engineer.

Basements or cavities left by structure removal shall be filled to the level of the surrounding ground
and shall be compacted in accordance with the relevant requirements in this specification.

Existing utilities running through or near existing structures shall be protected and/or relocated in
accordance with the Contractor’s coordination with the appropriate utility authority.

2.3.2.2

Removal of Structures and Foundations

Demolition,  removal,  and  disposal  of  all  buildings  and  structures  designated  for  removal  on  the
Contract plans or in the particular specifications shall be completed by the Contractor. Work shall
include  the  removal  and  disposal  of  all  excess  debris  and  the  removal  of  all  other  foundations,
paving, concrete floor slabs, sidewalks, signs, sheds,  garages, fences, and tanks, as well as any
other  miscellaneous  work  necessary  to  fully  complete  the  removal  of  the  buildings  and
appurtenances.

ARTHWORKS

Discontinuance of all utility services that serve the building or structure shall be arranged by the
Contractor, who shall also properly remove, disconnect, and plug all such services in accordance
with the requirements of the respective utility agency.

Existing underground storage tanks on-site or within the buildings shall be removed and disposed of
by the Contractor, who shall take all necessary precautions to remove any remaining fluids within
the  tanks.  Any  hazardous  materials  and  petroleum  products  shall  be  handled  and  disposed  of  in
accordance  with  Section  2.3.2.5.    When  removing  foundations,  the  Contractor  shall  perform  the
following:

1. Remove foundations to a depth of at least 300 mm below finished ground elevation or

subgrade elevation, whichever is lower.

2. Break up basement floors to promote drainage.

3. Fill basements or other cavities left by the removal of structures. Fill shall match the level

of the surrounding ground. Fill within the area of the roadway embankment prism, under
pedestrian pavement, or adjacent to other structures and utilities that require lateral or
bearing support. Fill shall be compacted to meet the requirements of Section 2.5.3.1.

2.3.2.3

Removal of Bridges, Culverts, and Drainage Structures

Bridges, culverts, and other drainage structures shall not be removed until the Contractor has made
satisfactory arrangements to accommodate traffic and the flow of water. Contractor shall not
commence removal work before preparing and submittal and the Engineers approval of a Removal
Method Statement which provides a detailed description of the Contractor

’s proposed removal

methods, public and traffic safety accomodations, noise and dust controls, disposal methods and
locations, and any other item as required by the Engineer.

Unless otherwise indicated, the existing substructures shall be removed 300 mm below the natural
ground surface. Portions of existing structures within the limits of a new structure shall be removed
to accommodate the construction of the proposed structure.

Work includes removal and disposal of underground obstructions, including walls; individual rocks;
structures; abandoned drainage structures, pipe lines, and utilities; foundations; and other structures
of steel or concrete.

Removal of existing utilities required to permit the orderly progression of work shall be accomplished
in coordination with the appropriate agency. Contractor shall contact the proper agency or owner
and arrange for its removal.

Bridges designated as salvaged material shall be dismantled without damage and match-marked.
Structures designated to become the property of the Contractor shall be removed from the site.

Blasting or other operations necessary for removing existing structures or obstructions that may
damage new construction shall be completed by the Contractor prior to placing new work. Use of
explosives shall be governed by Section 2.4.2.4.

Where partial demolition of obstructions or structures is indicated, the Contractor shall remove the
indicated structure with care and caution so as not to damage the remaining portions of the existing
structure.

2.3.2.4

Removal of Pavement, Barriers, Railings, Sidewalks, Kerbs,
and Gutters

Existing pavement shall be removed to the subgrade level at locations identified in the Contract plans
or the particular specifications. Where existing pavement is removed along a section of pavement to
remain, the Contractor shall saw-cut to neat lines along the break line in such a manner as to avoid
damage to the pavement that is to remain. Any damage to pavement areas that is to remain shall
be restored to the satisfaction of the Engineer and in accordance with Section 3.4.3.2 of Chapter 3,
Pavement, of these Standard Specifications.

ARTHWORKS

Existing asphalt pavement shall be broken up and stockpiled for reuse in aggregate-based coarse
layers as stipulated in Section 3.2.2 of Chapter 3, Pavement, of these Standard Specifications.

After removal of pavements, the old roadbed shall be scarified or ploughed to mix the remaining road
material thoroughly with earth and shall be graded and smoothed to a pleasing appearance to match
and blend in with the existing contours and terrain.

Where barriers, railings, kerbs and gutters are to be removed adjacent to pavement to remain, the
work shall be carried out without damaging the existing pavement. Haunching and foundations shall
be included in the removal. Removed railings kerbs, sidewalks, gutters, and barriers shall be properly
disposed of, and shall not be reused on the project.

2.3.2.5

Disposal of Materials

As much as practicable, waste concrete, asphalt, and masonry shall be broken into suitably sized
pieces and incorporated in embankment slopes or basement fills. Any broken concrete or masonry
and all other materials not considered suitable for use in construction or elsewhere shall be disposed
of by the Contractor at approved locations. In no case shall any discarded materials be left adjacent
to or within the site.

Engineer will approve the manner in which materials are disposed and their location, which shall not
create an unpleasant or objectionable view. When the Contractor requires a disposal area outside
of the jobsite, the Contractor shall obtain permission in writing from the appropriate agency and
waste disposal operation, and file this information with the Engineer.

If  the  Contractor  or  Engineer  finds  any  evidence  that  excavated  or  waste  material  has  become
contaminated  with  petroleum  products  or  other  hazardous  materials,  as  determined  by  visual,
olfactory,  or  other  means,  the  potentially  contaminated  material  shall  be  stockpiled  separately,
sampled, and analysed to determine disposal options.

2.4

Roadway Excavation

2.4.1

Description

Excavation consists of the following:

Roadway  excavation  consists  of  all  materials  excavated  from  within  the  right-of-way  or
easement  areas,  (including  all  material  encountered  regardless  of  its  nature  or
characteristics)  except  sub-excavation  described  in  2  below  and  structure  excavation
described in 4 below.

Subexcavation

consists of material excavated from below subgrade elevations in cut sections

or from below the original ground line in embankment sections. Subexcavation does not
include the work required in Section 2.2.2.5.

Borrow excavation

includes the material used for embankment and other fill construction that

is obtained from outside of the roadway prism.

Structural excavation

consists of material excavated for purposes of structure construction.

Work  described  in  this  section,  regardless  of  the  nature  or  type  of  the  materials  encountered,
includes  excavating  and  grading  the  roadway,  excavating  in  borrow  pits  (sites  providing  fill
materials), excavating below-grade, excavating channels, excavating and grading non-load bearing
areas outside of the traffic and pedestrian pavement areas, removing slide material, and disposing
of all excavated material. These activities may be performed in making cuts, embankments, slopes,
roadway  ditches,  approaches,  parking  areas,  intersections,  and  pedestrian  walkways,  and  in
completing related work.

Abu Dhabi, United Arab Emirates. STANDARD CONSTRUCTION SPECIFICATIONS (PART 1 - ROADS, Second Edition 2020) - page 2