DOCUMENTATION REQUIRED OVER PROJECT LIFE CYCLE
GUIDELINES FOR APPLYING DELIVERABLE STATISTICS TO THE PROVISION OF
OUTSOURCED ENGINEERING DESIGN AND PROJECT MANAGEMENT DOCUMENTATION
Pro rata Design Costs
Engineering design costs as a percentage of the total project installed cost (TIC) vary from project to
project as they are dependent on, amongst other things, the type of plant and the size of the plant, the
complexity of the design and the level of detail provided to the design office.
Typically design costs as a % of the TIC fall into the following ranges.
Design Element
Feasibility Design
Front End Design
Detail Design
CDM and Risk Management (CDM Project HS File & Plan) Planning Supervisor
Construction management (CDM Notifiable site) including Principal Contractor
Percentage
1-2
5-10
15-25
12-20
5-10
Types of Engineering Documents (Deliverables)
The types of deliverables normally produced on a typical multidisciplined capital project in the
Chemical/Fine Chemical industry include :Type of Engineering documents
(Drawings on ACAD R14 or LT)
Layouts and Plot plans
Piping and General Arrangements
Process Flow diagrams
Process P&IDs
Process Hook ups - Break ins
Piping Isometrics
As builts
Engineering Manhours per drawing
40
60
20
30
4
2
1
Draughting Manhours per drawing
50
80
12
25
2.5
6
6
Checking Manhours per drawing
25
30
8
15
1
3
2
Other Engineering Documentation (Deliverables)
Type of Document
(Electronically generated)
Technical Specifications
Hazard and operability studies
CDM Health & Safety File (Phase 1)
CDM Health & Safety Plan (Pre Tender)
Planning and scheduling Gantt Charts
Engineering Manhours per
document
30
40
40
30
20
Non Technical Documentation
Type of Document
Placement of Purchase orders (Simple)
Placement of orders (Complex)
Clerical Manhours/order
2.5
30
Checking Manhours per
document
5
10
4
8
4
DOCUMENTATION REQUIRED OVER PROJECT LIFE CYCLE
Quantity of documentation
The amount of documentation produced on a typical project has become quite considerable and
should not be underestimated. The 1994 CDM regulations place a legally binding responsibility on the
part of the Client to ensure that the designers, planning supervisors and principal contractors are all
“competent”. Notifiable projects require a considerable amount of supporting documentation in order to
satisfy the HSE.
Failing to ensure that the designer, planning supervisor and principal contractors are appointed, and
competence are two offences that can be committed under section 33 of the 1974 Health & Safety at
Work Act. Failing to ensure that the Health & Safety File and Health & Safety Plan are prepared and
available for inspection are also offences that can be committed by the Client.
Project Value
No of drawings
No of purchase orders
Vendor documents
CDM Risk assessments
Change and Variation orders
Phase
Design
Award
Design
Construction
Construction
$ 2M
200
50
700
30
10
$ 10M
750
200
2500
50
20
$ 30M
2000
350
6000
300
50
$ 80 M
7000
650
14000
6000
120
The data provided above is purely indicative and should be used as a rough guide only.
A MORE COMPREHENSIVE LIST OF THE DOCUMENTATION THAT IS TYPICALLY FOUND ON
MULTIDISCIPLINARY CDM NOTIFIABLE CAPITAL PROJECT IS LISTED SEPARATELY.
DOCUMENTATION REQUIRED OVER PROJECT LIFE CYCLE
PHASE 1 FEASIBILITY DESIGN
CDM competences & key appointments
Project Description & Design Spec.
Equipment Schedule
Process Calculations
Process flow diagrams
Process description
Control philosophy
Preliminary project schedule (Gantt)
Hazops 1 & 2
IPCC Implications (EA)
Statutory notices (EA)
Order of magnitude estimate +- 30%
Audit 1 Pre Sanction
PHASE 2 FRONT END DESIGN
CDM Pre tender File
Equipment data sheets
Safety & Environmental Audit (Process)
Environmental impact study
Fire Protection study
Piping and Instrument diagram
User requirement specification
Instrument data sheet
Electrical load list
Electrical area classification
Site survey and Plot plan
General arrangement drawings
Geotechnical data
Control Philosophy
CDM HSE plan
Civil specification
Civil and building drawings
Structural drawings
Detailed project cost estimate +- 20%
Audit 2 60% Project Audit
PHASE 3 DETAIL DESIGN
PHASE 4 CONSTRUCTION
DOCUMENTATION REQUIRED OVER PROJECT LIFE CYCLE
PHASE 1 FEASIBILITY DESIGN
PHASE 2 FRONT END DESIGN
PHASE 3 DETAIL DESIGN
Method statements for construction
RC & Bar bending schedule
Construction Risk assessments
Design calculations
Electrical specifications
Pipework GA’s
Pipework Isometrics
Fire protection drawings
Insulation specification and schedule
Material schedules
Electrical single line diagrams
Electrical schematics
Electrical layouts
Electrical schedules
Instrument schedules
Instrumentation/control user requirement
Instrumentation specifications
Loop sheets and diagrams
Process hook up diagrams
Material take offs
Enquiry documents
Technical requisitions
Purchase orders
Cost status reports
Construction programmes
Hazop 4
O&M manuals
Commissioning manuals
PHASE 4 CONSTRUCTION
Activity Day diary sheets
Health and Safety Plan
Construction risk assessments
Method statements
Variation and Change orders
Completion handover documents
As builts
Audit 3 Construction Completion