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How do you optimize the scope and budget of a FEED project for a bridge?

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Front End Engineering Design (FEED) is a crucial phase in any engineering project, especially for bridges, where the technical, environmental, and economic aspects need to be carefully defined and aligned. A well-executed FEED can reduce risks, optimize costs, and improve the quality and efficiency of the project. But how do you optimize the scope and budget of a FEED project for a bridge? Here are some tips to help you achieve a successful FEED.

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John Monfre

Recently Retired
Haslam Ramzan Hassan

Senior Civil and Structural Engineer, Petronas Technical Services Sdn Bhd | CAPM, MBA
John Griffiths

Trustee of Hammersmith & Fulham Foodbank, CEO ETS Ltd

1 Define the project objectives and requirements

The first step in any FEED project is to clearly define the project objectives and requirements, such as the bridge function, location, design criteria, specifications, standards, codes, regulations, and stakeholders' expectations. This will help you establish the project scope, schedule, and budget, as well as identify the potential challenges and risks. You should also conduct a feasibility study to assess the technical and economic viability of the project and evaluate the alternative solutions.

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John Monfre

Recently Retired
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You need to identify if this is a public or private initiative to determine the viability of the project. Public sector projects have different weightings for determining economic viability.

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2 Perform a detailed site investigation

The second step in a FEED project for a bridge is to perform a detailed site investigation to collect and analyze the relevant data about the site conditions, such as the geology, topography, hydrology, climate, traffic, and utilities. This will help you determine the optimal alignment, configuration, and foundation of the bridge, as well as the environmental and social impacts. You should also conduct a geotechnical investigation to evaluate the soil and rock properties and behavior, and a survey to establish the precise dimensions and coordinates of the site.

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Haslam Ramzan Hassan

Senior Civil and Structural Engineer, Petronas Technical Services Sdn Bhd | CAPM, MBA
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This represents a pivotal stage in the process of collecting site-specific and physical data. In certain situations, engineers may not give it the attention it deserves, relying on less dependable sources for design assumptions. For instance, they might use data from 'Google Maps' instead of conducting physical inspections to ascertain the alignment and layout of the bridge. This practice has led to design flaws and inaccurate details in subsequent design development

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3 Develop a conceptual design and layout

The third step in a FEED project for a bridge is to develop a conceptual design and layout of the bridge, based on the project objectives, requirements, and site investigation. This will help you define the main features and dimensions of the bridge, such as the span, width, height, shape, materials, and structural system. You should also consider the aesthetic, functional, and safety aspects of the bridge, as well as the constructability and maintainability. You should use appropriate software tools and methods to model and analyze the conceptual design and layout.

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John Griffiths

Trustee of Hammersmith & Fulham Foodbank, CEO ETS Ltd
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You will need details of the proposed loadings for the bridge, types and weights of vehicles or rail rolling stock, requirement for personnel access and pathways.

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4 Prepare a cost estimate and a risk analysis

The fourth step in a FEED project for a bridge is to prepare a cost estimate and a risk analysis of the project, based on the conceptual design and layout. This will help you evaluate the economic feasibility and profitability of the project, as well as the uncertainty and variability of the costs. You should use reliable data sources and estimation techniques to calculate the direct and indirect costs of the project, such as the material, labor, equipment, and overhead costs. You should also identify and quantify the potential risks and opportunities of the project, such as the technical, environmental, legal, and market risks, and develop mitigation and contingency plans.

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5 Review and optimize the design and estimate

The fifth step in a FEED project for a bridge is to review and optimize the design and estimate of the project, based on the feedback and input from the stakeholders, such as the client, contractor, consultant, and regulator. This will help you improve the quality and accuracy of the project deliverables, as well as align them with the expectations and requirements of the stakeholders. You should also perform a value engineering analysis to identify and eliminate any unnecessary or excessive costs or features of the project, and enhance its value and performance.

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6 Document and present the results

The sixth and final step in a FEED project for a bridge is to document and present the results of the project, such as the design drawings, specifications, calculations, reports, estimates, and schedules. This will help you communicate and demonstrate the technical and economic feasibility and viability of the project, as well as its benefits and impacts. You should also prepare a tender package to solicit bids from potential contractors for the execution phase of the project, and a contract document to define the terms and conditions of the agreement.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How do you optimize the scope and budget of a FEED project for a bridge?

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1 Define the project objectives and requirements

2 Perform a detailed site investigation

3 Develop a conceptual design and layout

4 Prepare a cost estimate and a risk analysis

5 Review and optimize the design and estimate

6 Document and present the results

7 Here’s what else to consider

Front End Engineering Design (FEED)

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