Whole Life Asset Management: Why Engineers Need to Think Beyond Construction

When working on a civil engineering project, it can be easy to focus on the immediate objective: get the asset designed, approved and constructed.

But completing construction is only the beginning of an asset’s life.

A drainage system may operate for decades. A highway could remain in service for generations. Bridges, retaining walls, pumping stations and other infrastructure will require inspection, maintenance, repair and eventually replacement.

This is where Whole Life Asset Management becomes important.

What is Whole Life Asset Management?

Whole Life Asset Management is the systematic management of an asset throughout its entire lifecycle, from initial planning and design through construction, operation, maintenance, renewal and eventual decommissioning or replacement.

The objective is to achieve the best balance between:

• Performance
• Cost
• Risk
• Safety
• Sustainability
• Reliability

Rather than asking:
“What is the cheapest way to construct this?”

Whole life thinking asks:
“What solution provides the best value throughout the asset’s entire life?”

These can lead to very different engineering decisions.

The Asset Lifecycle

A typical civil engineering asset passes through several stages:

Planning → Design → Construction → Operation → Maintenance → Renewal → Decommissioning

Decisions made during the early stages can significantly influence what happens during every stage that follows.

For example, saving money during design by selecting a cheaper material may reduce the initial construction cost. However, if that material deteriorates more quickly, the client may face greater inspection, maintenance and replacement costs over the next 30 years.

Good asset management therefore requires engineers to look beyond the immediate project programme and capital budget.

1. Whole Life Cost

One of the fundamental principles of asset management is considering whole life cost rather than capital cost alone.

Whole life costs can include:

• Design and construction
• Operation
• Inspection
• Routine maintenance
• Repairs
• Replacement
• Energy consumption
• Decommissioning

Example: Drainage Materials

Imagine two drainage products are technically suitable for a project.

Option A has a lower purchase and installation cost but requires more frequent maintenance and has a shorter expected service life.

Option B costs more initially but is more durable and requires less intervention.

Selecting Option A purely because it is cheaper to construct may therefore represent poor value over the life of the development.

An engineer should consider whether the additional capital expenditure associated with Option B could produce lower overall expenditure and risk.

This is one reason why lowest cost does not necessarily mean best value.

2. Designing for Maintenance

Engineers should consider how infrastructure will actually be inspected and maintained once construction is complete.

A design may work perfectly hydraulically or structurally but still create problems if maintenance teams cannot safely access it.

Example: Attenuation Tank

Consider an underground attenuation tank beneath a residential development.

During design, engineers should consider questions such as:

• Can maintenance vehicles reach it?
• Are access chambers positioned appropriately?
• Can sediment be removed?
• Who will maintain the system?
• Could future development obstruct access?
• Will maintenance require working in a confined space?

Moving an access chamber during design might be relatively simple.

Trying to create new access after houses, roads and landscaping have been constructed could be considerably more difficult and expensive.

Maintainability should therefore be considered as a design requirement, not something left until the asset fails.

3. Risk and Consequence of Failure

Not every asset requires the same level of maintenance or investment.

Asset management therefore uses risk to help prioritise resources.

A simple way of considering this is:

Risk = Likelihood of Failure × Consequence of Failure

An asset with a relatively low probability of failure may still require significant management if the consequences would be severe.

Example: Highway Drainage

Consider a drainage system serving a major highway.

A blocked gully on a quiet residential road may cause relatively localised flooding.

Failure of drainage infrastructure on a high-speed strategic road could result in standing water, disruption, collisions and potentially serious consequences for road users.

The importance of the asset therefore influences inspection frequency, maintenance requirements and acceptable levels of risk.

4. Health and Safety Throughout the Asset's Life

Health and safety should also be considered beyond the construction phase.

Design decisions can influence how frequently maintenance workers are exposed to hazards throughout an asset's operational life.

Example: Deep Drainage Chambers

A deep drainage chamber may require confined-space entry for certain inspection or maintenance activities.

Where practicable, an engineer could consider whether the design can:

• Reduce chamber depth
• Allow inspection from the surface
• Provide appropriate access
• Reduce maintenance frequency
• Eliminate the need for entry altogether

A solution that reduces maintenance interventions can therefore provide both a financial and health and safety benefit.

This demonstrates an important principle of whole life asset management: designing out future risk can be more effective than repeatedly managing that risk later.

5. Sustainability and Carbon

Whole life asset management is also closely connected to sustainable engineering.

Every repair or replacement can require:

• New materials
• Construction plant
• Transportation
• Energy
• Waste disposal
• Additional labour

Increasing the durability of an asset can therefore reduce both maintenance expenditure and environmental impact.

Example: Highway Pavement

A pavement solution with a higher initial embodied carbon impact could potentially provide a longer service life and require fewer interventions.

Another solution might have lower initial embodied carbon but require frequent resurfacing.

Engineers should therefore avoid looking only at carbon associated with initial construction. The environmental impact should be considered across the asset's life wherever practicable.

The same principle applies to cost.

6. Climate Change and Resilience

Infrastructure designed today may operate under very different conditions in the future.

Whole life asset management therefore requires engineers to consider how assets will respond to changing environmental conditions.

For drainage infrastructure, this could include increased rainfall intensity and changes in flood risk.

For highways, bridges and structures, considerations could include higher temperatures, extreme weather and changing deterioration rates.

Example: Surface Water Drainage

A drainage network may adequately manage today's rainfall conditions, but if it has no allowance for future climate change, its performance could deteriorate over its design life.

Providing appropriate climate change allowances, exceedance routes and resilient drainage infrastructure may increase initial requirements but reduce the likelihood of future flooding, damage and expensive retrofitting.

Resilience is therefore both an engineering and an asset management consideration.

7. Planned Maintenance vs Reactive Maintenance

Whole life asset management also considers when interventions should take place.

Maintenance generally falls into approaches such as:

Preventative maintenance – planned activities intended to prevent deterioration or failure.

Predictive or condition-based maintenance – intervention based on inspections, monitoring or asset condition.

Reactive maintenance – repairs undertaken after something has failed.

Reactive maintenance can sometimes be appropriate for low-risk assets. However, relying on failure before acting can be costly for critical infrastructure.

Example: SuDS

A swale or permeable pavement may gradually accumulate sediment.

Routine inspection and maintenance can identify and remove sediment before hydraulic performance is significantly affected.

If maintenance is ignored until the system fails, the client could instead face flooding, extensive remediation and disruption to residents.

A relatively inexpensive maintenance activity can therefore prevent a much larger future cost.

8. Data and Asset Information

Good asset management depends on good information.

Throughout design and construction, engineers generate valuable information including:

• Drawings
• Specifications
• Inspection records
• As-built information
• Test results
• Maintenance requirements

This information should be accurately recorded and transferred to whoever will operate the asset.

Imagine trying to repair an underground drainage network 20 years after construction without reliable information showing pipe locations, depths or connections.

Poor information management can turn a relatively straightforward maintenance activity into an expensive investigation.

Asset information therefore has value long after the design team has left the project.

Conclusion

Whole Life Asset Management is ultimately about recognising that an engineer's responsibility does not end when construction finishes.

Good engineering considers how an asset will perform, deteriorate, be inspected, maintained, adapted and eventually replaced.

Sometimes spending more during design or construction can save significantly more money later. Sometimes providing better maintenance access can prevent workers being exposed to unnecessary hazards for decades. Sometimes designing additional resilience today can avoid major reconstruction in the future.

The best engineering solution is therefore not necessarily the cheapest solution on day one.

It is the solution that delivers the appropriate performance, safety, sustainability and value throughout the life of the asset.

For an early career engineer, learning to think this way is an important step from simply designing infrastructure to understanding how infrastructure is actually managed.

  

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