Altai Mir

When you walk past a massive new skyscraper or a complex motorway expansion, your eyes are naturally drawn to the finished product—the glass, the steel, and the architectural finesse. However, what most people don’t see is the incredible amount of engineering that exists only for a short time to make that permanent structure possible. This is the world of temporary works, and at the heart of this world sits the Temporary works coordinator. Without this specific role, the risks involved in modern construction would be significantly higher, and the likelihood of structural failure during the build process would skyrocket.

Temporary works are the parts of a construction project that are needed to enable the permanent works to be built. This includes everything from the scaffolding that allows workers to reach high places to the massive props holding up a basement wall while the concrete cures. Because these structures are, by definition, temporary, they are sometimes incorrectly viewed as less important than the final building. This is where a Temporary works coordinator steps in, ensuring that these transient elements are treated with the same engineering rigour as the permanent ones.

What counts as temporary works anyway

Before diving into the specifics of the role, it is helpful to understand the sheer breadth of what falls under the umbrella of temporary works. In the UK, the industry follows the guidelines set out in BS 5975, the code of practice for temporary works procedures. This standard organises temporary works into several categories, all of which require careful management.

• Earthworks: This includes trench sheeting, cofferdams, and any temporary slopes or embankments created during excavation.
• Structures: Think of formwork, falsework, scaffolding, and even the propping of existing buildings during a renovation.
• Equipment support: Large cranes don’t just sit on the ground; they often require specially designed crane mats or reinforced foundations to prevent them from toppling over.
• Site access: Temporary haul roads, bridges, and pedestrian walkways that are removed once the project is complete.

The day to day reality of the role

A Temporary works coordinator is not just a health and safety officer with a different title. They are a central hub of communication and technical oversight. Their primary job is to ensure that a clear management system is in place for all temporary works on a site. This starts long before any metal is bolted together or any hole is dug. The coordinator is responsible for creating a temporary works register, which is essentially a master list of every temporary structure that will be needed throughout the project’s lifecycle.

One of the most critical parts of the job is the design brief. Every piece of temporary works needs a design, and the coordinator ensures that this brief is accurate and contains all the necessary information for a designer to work from. They don’t necessarily do the design themselves, but they are responsible for making sure the person who does is competent and that the final design is checked by a third party. This ‘four-eyes’ principle is a cornerstone of safety in British engineering.

Why BS 5975 is the gold standard

In the UK, the role of the Temporary works coordinator is defined largely by British Standard 5975. This document was heavily revised following various historical site failures, and it provides a clear procedural framework. It emphasises that the vast majority of site accidents involving temporary works aren’t caused by a lack of engineering knowledge, but by a breakdown in communication or a failure to follow a set procedure. The coordinator is the person who prevents that breakdown. They ensure that everyone—from the site manager to the sub-contractor—knows exactly what the plan is and, more importantly, follows it to the letter.

Essential duties of a Temporary works coordinator

The responsibilities of the role are varied, and they require a mix of technical understanding and strong leadership. A good coordinator needs to be able to stand their ground when a project manager is pushing for a faster timeline that might compromise safety procedures. Some of the core duties include:

• Managing the Register: Keeping the temporary works register up to date as the project evolves and new requirements emerge.
• Coordinating Designs: Ensuring that all temporary works are designed by competent people and that those designs are checked according to the risk category of the work.
• Issuing Permits: This is perhaps the most visible part of the job. The coordinator issues ‘Permits to Load’ and ‘Permits to Unload,’ which are the formal green lights that tell the site team it is safe to proceed.
• Ensuring Competence: Verifying that the people actually installing the temporary works (the scaffolders, the groundworkers, etc.) have the right skills and are following the approved drawings.
• Supervising the TWS: In larger projects, the coordinator might have several Temporary Works Supervisors (TWS) reporting to them, and they must oversee their activities to ensure consistency.

The difference between a coordinator and a supervisor

It is common for people to confuse the Temporary works coordinator with a Temporary Works Supervisor. While they work closely together, the distinction is important. The coordinator has the overall responsibility for the management system across the entire site. They look at the big picture, the designs, and the legal compliance. The supervisor, on the other hand, is usually more ‘hands-on’ and focused on a specific area or trade. They ensure that the physical installation matches the design drawings on the ground, but the final authority to load that structure usually rests with the coordinator.

Navigating the permit to load system

The permit system is what prevents disasters. Imagine a scenario where a large concrete slab is being poured. The falsework (the temporary support) must be perfectly installed to take that weight. A Temporary works coordinator will inspect the falsework, compare it against the signed-off design, and only then issue a ‘Permit to Load.’ This is a physical or digital document that says, “I have checked this, and it is safe to pour the concrete.”

Similarly, once the concrete has reached sufficient strength, a ‘Permit to Unload’ (or ‘Permit to Strike’) is issued. Removing support too early can lead to the collapse of the permanent structure, so this step is just as critical as the first. The coordinator relies on test results from the concrete to make an informed, data-driven decision rather than just guessing based on the number of days that have passed.

Getting the right training for the job

Because the role carries so much responsibility, you cannot simply step into it without the right background. Most people in this position have a background in civil engineering or site management and have several years of experience under their belt. In the UK, the CITB (Construction Industry Training Board) offers a specific Temporary Works Coordinator Training Course (TWCTC). This course covers the legal requirements, the application of BS 5975, and the practicalities of managing the temporary works register.

Beyond formal qualifications, a successful coordinator needs specific soft skills:

• Attention to detail: Missing a single bracing member on a scaffold drawing can have catastrophic consequences.
• Communication: They must be able to explain technical requirements to non-technical staff and negotiate with designers.
• Authority: They must be comfortable stopping work if they believe a temporary structure is unsafe, even if it causes a delay to the programme.
• Organisation: Managing dozens of designs, permits, and inspections across a busy site requires a highly methodical approach.

The role is essentially about risk management. By identifying what could go wrong with the temporary elements of a build, the coordinator puts measures in place to ensure those things never happen. As construction techniques become more ambitious and sites become more cramped, the need for a dedicated, competent professional to oversee these complex systems has never been more vital. It is a demanding job that requires a unique blend of engineering knowledge and administrative discipline, ensuring that everyone on site goes home safely at the end of the day.