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SPECIFIC ACTIVITY Originally issued on date 27-Feb-2013METHOD STATEMENT This Revision 11, July,2013 No.00BULK EARTHWORK Page 1 of 5

Client Originator

Location Project

Title:

SITE SPECIFIC ACTIVITY METHOD STATEMENTBULK EARTHWORK

Format Document Number Revision

A4 00

The original master of this document is retained on the Document Management & Collaboration Database.Copies produced from the master, by whatever means, are deemed uncontrolled.

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You must confirm that you hold the latest version, before using this document for its intended

purpose.

REVISION HISTORY

Rev Rev Date Comments Revised By Issued date

Revision History & References

Revision 00 incorporates:

Original File Location

This document is saved as: Macintosh SSD:Users:bekk71:Downloads:Method:NAIRDA-MST-PRJ-201-EAW.docx

This document will be updated where necessary by distribution of a completereplacement.

Document revisions

Short Notice Change Order

Method Statements are subject to amendment depending on how site works

progress and if a new element of site works are required.

A new risk assessment must be done for any new tasks.

Where the need for a revision to a signed-off method statement is identified, therevision may be implemented as either an amendment sheet (Short NoticeChange Order) to be included after the front sheet, or as a material revision tothe method statement.

Where the revision does not materially alter quality, time or risk to health andsafety, the Project Manager may sign off the change or authorize a competentperson to sign it off on their behalf. In the case of a material revision, thedocument must be forwarded to the reviewers for sign-off.

It is the responsibility of the Project Manager or Construction Manager to informthe Client and supervision of any revisions to the Method Statement. The PMmust ensure that any paper copy of the Method Statement held on site or byaffiliates is the most recent version, and to implement the use of the revisedversion.

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1. Purpose

This document describes the procedure to carry out the construction of

Subgrade in the project.

2. Scope

The following document covers the construction phases to carry out theearthworks for the subgrade in line with the provisions of the generalspecifications for roads and bridges.

3. Definitions

N/A

4. Responsibilities

4.1 Project Director

Ensure that the works are done in accordance to the contractualdocuments, namely the Project Specifications, and other relevantdocuments issued by the Engineer as long as these documentshave been the object of discussion and approval between theconcerned parties.

4.2 Production Manager

Provide the necessary resources to ensure the works are carriedout according to the contract specifications and other relevantcontractual documents.

Provide the resources to ensure the works are carried out in duetime, in compliance with the Activity Time Schedule approved bythe Engineer.

Provide the resources to ensure the works are carried out withinthe budget approved by the client.

4.3 Laboratory Manager

Provide laboratory technicians to follow-up the works. Ensure that all the equipment used in the test are calibrated and

in accordance to the specifications requirements.

Ensure the materials used in the earthworks are in compliancewith the client contract specifications.

5. Resources

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5.1 Human Resources

Surveyor Team Laboratory Technician in numbers appropriate to the works. Laboratory assistants in number appropriate for the works; Operators for compaction, material transportation and material

leveling equipment, in number appropriate for the works;

Laborers in number appropriate for the works.5.2 Equipments

Compaction Equipment, steel roller and sheep foot in numbersappropriate for the works

Excavators in number appropriate for the works. Bulldozer in number appropriate for the works.Trucks in number appropriate for the works. Grader in number appropriate for the woks. Water tanks.

5.3 Materials

The embankments material shall be free from topsoil, organicmatter, shale and other unacceptable material as specified in theGeneral Specifications.

Quarry Sand as per General Specification6. Methodology

6.1 The existing material within the cut section will be excavated to-550mm from the finished level and stockpiled.

6.2 Material at the excavated depth( -550mm) will be compacted toachieve 100% of British standard compaction,

6.3 Water may be added to achieve the compaction if the naturalmoisture content is not up to the OMC determined from the

laboratory control density test. However if the natural moisture

determined with a speedy moisture tester is more than the

OMC, the material will be spread with the grader and allowed to

dry to the OMC, after which it will be mixed with the grader and

compacted.

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6.4 When this layer is certified ok by the chief surveyor and thelaboratory manager, the 150mm to the formation level will be

constructed with 80% of lateritic material from the cut,

stabilized with 20% quarry dust and compacted to achieve

100% of British standard compaction in line with clauses 6005

(xiii) and 6102 of the general specification. This combination

will improve the quality of the local material to the suitable for

the construction of the subgrade layer.

6.5 On completion of the subgrade layer and certified ok by thechief surveyor and the laboratory manager, sub base material

will be placed immediately to protect it from hash weather

conditions.

6.6 Note: where unsuitable material is located below the formation,this material will be excavated to a depth jointly agreed and

backfilled with suitable material. According to the general

specification Unsuitable material shall include the following:-

oMaterial from swamps, marshes and bogs.

o Peat, logs, stumps, roots and other perishable orcombustible material.

o Topsoil and highly organic clay and silt.o Clay having a liquid limit exceeding 80% or plasticity index

exceeding 55.

o Highly micaceous materials.

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Mst Prj 201 Stab 1