Manuja NallaperumaM. Nallaperuma

Manuja “Manu” Nallaperuma, PMP® · MIEAust · Planner / Project Scheduler

When a project runs late, the programme becomes evidence. I turn it into delay analysis, EOT claims and dispute-ready reports under AS 4000, NEC3/NEC4 and FIDIC — backed by eight years planning defence, civil, EPC and road projects in Primavera P6.

BASE Darwin, NT · Australia-wide TOOLS Primavera P6 · MS Project · Power BI CONTRACTS AS 4000 · NEC3 · NEC4 · FIDIC
8+
Years in planning & controls
$466.4M+
Combined project value (USD)
4
Major infrastructure projects
2
Countries · Australia & Sri Lanka

MANU-1000 Core specialism

Delay analysis & dispute resolution

Time disputes are won on the programme and the records behind it. I build the analysis that shows what caused the delay, who carries the risk and how much time is due — clearly enough for a superintendent, project manager, adjudicator or tribunal to follow.

01 · DELAY ANALYSIS & EOT

Prove the delay, secure the time

For contractors and subcontractors claiming time, and for principals assessing a claim they have received.

  • Delay event identification and critical path impact
  • Time impact analysis on the contemporaneous programme
  • EOT claims and notices prepared to the contract's requirements
  • Review and response to EOT claims received
  • Concurrency, float and mitigation assessed openly
02 · DISPUTE RESOLUTION SUPPORT

Programme evidence for the dispute

Working alongside your commercial team and lawyers when a time claim turns into a dispute.

  • Independent delay reports for negotiation and settlement
  • Programme analysis for security of payment adjudication
  • Support for mediation, expert determination and arbitration
  • Rebuttal of the other side's delay analysis
  • Records review — diaries, RFIs, correspondence, as-built data

Methods — selected to suit the records and the contract

Time impact analysisWindows analysisAs-planned vs as-builtImpacted as-plannedCollapsed as-builtSCL ProtocolAACE RP 29R-03

Contract forms

AS 4000Australian Standard

Delay notices, EOT claims and delay damages under the time and progress provisions.

NEC3Engineering & Construction Contract

Accepted programme, early warnings and compensation events with time impact.

NEC4Engineering & Construction Contract

Programme acceptance, compensation event quotations and the notification time bar.

FIDICRed Book 1999 / 2017

EOT entitlement, claim notices and particulars — the form I've worked under most.

// Technical delay and programming analysis — not legal advice. Engagements are accepted only where there is no conflict of interest.

MANU-1500 Planning services

Programmes that hold up

The best delay claim starts with a good programme. For head contractors, subcontractors and principals who need one built, maintained or checked — as a one-off package or monthly support.

SVC 01

Baseline & Tender Programmes

Logic-driven programmes in Primavera P6 or MS Project, built to be approved and then actually used on site.

  • Tender, baseline & construction programmes
  • Resource & cost-loaded schedules
  • Cash-flow forecasts & S-curves
SVC 02

Monthly Updates & Narratives

Regular programme updates with a clear written narrative, so the story of the job is on record every month.

  • Progress updates & schedule narratives
  • Critical path & float movement reporting
  • Subcontractor progress tracking
SVC 03

Schedule Review & Health Check

An independent look at a programme before it is submitted, accepted or relied on in a claim.

  • Logic, constraints & critical path checks
  • What-if simulations & forecasting
  • Written findings with fixes
SVC 04

Recovery & Lookahead Planning

When the dates are under pressure: recovery options, resequencing and short-term lookaheads the site team can run with.

  • Recovery & catch-up programmes
  • Short-term lookahead programmes
  • Interface & resource planning
SVC 05

Dashboards & Project Controls

Turn schedule and progress data into reporting that management reads in a minute.

  • Interactive Power BI dashboards
  • Earned Value Management (EVM)
  • Progress reports & audit-ready records
1

Send the brief

Tell me the project, the contract form and what you need. A few lines is enough.

2

Scope & quote

I review what you have, confirm the deliverables and timing, and send a quote.

3

Deliver

You receive native schedule files, reports and narratives ready to submit.

Not sure which one you need? Describe the problem — a late programme, a rejected EOT, a notice deadline coming up, a claim heading to adjudication — and I'll tell you how I'd approach it.

Start an enquiry ↗

MANU-2000 Experience

The flight path

Four major projects, read like a schedule: dates, scope and what was delivered. Open any row for the detail.

01/2026 — PRESENTDarwin, Australia Project Engineer / Planner SLSCO Ltd. — RAAF Base Darwin · FY23 MCON P-923 Aircraft Parking Apron · US$239M Defence · Aviation · PFAS remediation

New aircraft parking apron for 25 tilt-rotor and rotary-wing aircraft with two helicopter FATO pads, connecting to the existing Bomber and Fighter Replenishment Aprons. Scope covers PFAS-impacted demolition and excavation, airfield lighting, utilities, pump stations, wash pads and three electrical substations — delivered to AS/NZS standards and Australian Defence policy.

  • Prepare monthly progress updates and schedule narratives in Primavera P6 for a US$239M defence aviation project.
  • Develop and maintain interactive Power BI dashboards providing project-wide performance visibility.
  • Conduct what-if schedule simulations and forecasting analyses to support management decisions.
  • Coordinate and track subcontractor progress against the project schedule across multiple work fronts.
  • Produce and monitor short-term lookahead programmes to ensure planned activities are achieved.
07/2023 — 12/2025Colombo, Sri Lanka Planning Engineer China Harbour Engineering Company Ltd. — Metro Colombo Solid Waste Management Project (EPC) · US$130M EPC · FIDIC Red Book · EOT claims

Large-scale urban infrastructure programme delivering a waste-by-rail logistics system and Sri Lanka's first engineered sanitary landfill at Aruwakkalu, under FIDIC Red Book conditions.

  • Developed, updated and optimised work programmes in Primavera P6, including the Master Work Programme.
  • Prepared and submitted detailed EOT claims with delay analysis and time-impact assessments per the SCL Protocol.
  • Compiled claim narratives, contemporaneous records and impact models supporting contractual claims.
  • Managed contractual correspondence under FIDIC Red Book; coordinated subcontractors and stakeholders.
  • Produced monthly progress reports, bi-weekly QA/QC summaries, technical documentation and design submissions.
  • Aligned subcontractor schedules with the master programme and supervised project handover documentation.
  • Ensured QA/QC through material approvals, testing coordination, NCR tracking and corrective action reporting.
  • Oversaw daily operations of the leachate treatment and deodorisation plants; chaired weekly subcontractor meetings.
08/2019 — 06/2023Kandy, Sri Lanka Construction Manager / Planning Engineer Hunan Construction Engineering Group Corporation — Five Roads & Thirteen Bridges Project (Design & Build) · US$100M Design & Build · Exim Bank of China funded

Urban infrastructure initiative widening five key roads and reconstructing thirteen bridges, combining international procurement with large-scale site management.

  • Developed and maintained baseline and construction programmes in Primavera P6 and MS Project.
  • Prepared cost-loaded schedules, cash-flow forecasts, tender programmes and recovery plans.
  • Administered design variations, EOT claims, value engineering proposals and FIDIC Red Book documentation.
  • Prepared competitive tender rate analyses and detailed cost estimates; managed labour, plant and material resources.
  • Produced structural and road design calculations using SAP2000, ETABS, Prokon and Autodesk Civil 3D.
  • Implemented method statements, QA plans and HSE documentation; supervised construction to design and specification.
  • Led progress review meetings and coordinated clients, consultants, subcontractors and stakeholders.
07/2018 — 07/2019Kandy, Sri Lanka Planning Engineer V.V. Karunaratne & Company — Moragolla Hydropower Plant, Lot A1 Preparatory Works · US$9M ADB funded · Renewable energy

Preparatory works for a key renewable energy project — access and diversion roads, offices, base camps and site infrastructure — supervised by Nippon Koei & Fichtner JV for the Ceylon Electricity Board.

  • Developed, updated and monitored work programmes, including catch-up and revised schedules, in MS Project.
  • Administered design, cost and time variations, including EOT submissions and variation order documentation.
  • Forecast project cash flows and prepared S-curves to monitor financial performance and progress.
  • Prepared method statements, resource schedules, QA plans and safety documentation.
  • Supervised laboratory and field testing (CBR, Proctor, Atterberg, asphalt) and designed road pavements to traffic loading.

MANU-4000 Areas of Expertise

Work breakdown

WBS 1.0

Planning & Scheduling

  • Primavera P6 & MS Project (advanced)
  • Baseline, tender & construction programmes
  • Critical path & what-if analysis
  • Recovery & lookahead planning
  • Resource & cost-loaded schedules
WBS 2.0

Delay, Claims & Disputes

  • Delay analysis & EOT claims — SCL Protocol
  • Dispute resolution & adjudication support
  • AS 4000 · NEC3 · NEC4 · FIDIC
  • Contemporaneous records & impact models
  • Variations & value engineering
WBS 3.0

Controls & Reporting

  • Earned Value Management (EVM)
  • Power BI dashboards & reporting
  • Cash-flow forecasting & S-curves
  • Risk & interface management
  • QA/QC & audit-ready documentation

MANU-5000 Education, Certifications & Recognition

Credentials

PMP®

Project Management Professional

Project Management Institute

MIEAust

Member, Engineers Australia

Professional Engineer

2023

MSc Engineering Management

University of Peradeniya, Sri Lanka

2018

BSc (Hons) Civil Engineering

Sri Lanka Institute of Information Technology

AMIESL

Associate Member

The Institution of Engineers, Sri Lanka

ACI

Concrete Field Testing Technician — Grade I

American Concrete Institute

AWARD

Outstanding Employee

Recognised for project performance

FIDIC

Top performer — FIDIC Contract Law

Contract law training

I also build tools for construction teams

Plan Room is a web platform for construction coordination and document control that I designed from site experience — because the best programme still fails if the drawings and records are a mess.

Visit Siteorva ↗

MANU-6000 Reach me

Let's build the programme together

Whether you need a delay claim prepared or answered, programme evidence for a dispute, a programme built or reviewed, or you're hiring for a senior planning or project controls role — send a message and I'll reply personally.

  • Delay analysis & dispute support, Australia-wide
  • Senior planner / scheduler / project controls roles
  • CV and references available on request
Or message me on LinkedIn ↗

// Your details are used only to reply to your enquiry.