Site Diary: What It Is and How to Fill It In

Every site has a history made up of days: who was present, which work items were carried out, what the weather was like, what unexpected events occurred. The site diary is the document that preserves this history and lets you reconstruct it when needed.

In this article we look at what it is, who fills it in, what to record every day, what it is called in public works and what benefits digital management offers compared with paper and Excel.

What a site diary is

The site diary is the document in which the site's activities, attendance, equipment, conditions and events are recorded day by day. It is a kind of works log: written regularly, it gives an accurate picture of how the site has progressed over time.

Its value lies in continuity. An isolated entry says little; a series of daily entries, on the other hand, lets you understand why a work item took longer than expected, when a material was delivered or on which day a problem occurred. That is why it is useful both during the works, to coordinate companies and teams, and afterwards, to clarify any disputes.

Who fills it in

The site diary is filled in by whoever runs or follows the works on site, for example the site manager or the company's technical director, depending on how the company is organised. What matters is that responsibilities are clear: who writes, how often and who checks the entries.

On sites with several companies, it is useful for each one to contribute its own information, for example through daily site reports, which then feed into the overall diary.

Good practice for filling it in

Whatever organisation you choose, a few rules make the diary more reliable: fill it in every day, even when "nothing happens"; use clear, consistent descriptions for work items; always state who wrote the entry; do not delete what has been written but, if necessary, add a dated correction. A diary that is consistent over time is much more useful than one full of detail but patchy.

What to record: checklist

A well-documented day usually contains this information:

• Date and, if useful, start and finish times of activities.
• Weather conditions, especially if they affected the works.
• Attendance: companies, teams and workers present on site.
• Equipment and tools used.
• Work items carried out and their progress.
• Materials delivered or used.
• Visits and inspections by the client, works supervisor, coordinators or authorities.
• Significant events: unexpected events, suspensions, variations, safety issues.
• Photos documenting the state of the works.

Short but regular entries are better than long reports written days later: memory tends to lose the details that, when questions arise, turn out to be the most important.

Photos deserve particular attention. A dated image of the state of a work item, before it is covered by the next one, is often the most immediate proof of how it was carried out. Linking photos to the corresponding day and work item saves you from having to search for them among hundreds of files.

In public works: the works journal

In Italian public works the equivalent document is the works journal (giornale dei lavori), kept by the works supervisor. It has the same function of recording the daily progress of the site, as part of the contract's accounting and technical documentation. For the specific rules, refer to the works supervisor and the documentation of the individual contract.

In private works too it can be useful to adopt the same rigour: regular, signed entries kept in an orderly way make the diary a reliable tool for communication between contractor, client and technical professionals.

Paper, Excel or digital

Many sites still keep the diary on paper or in an Excel sheet. It works as long as the site is small; as companies, teams and documents grow, the limits become clear.

Going digital does not change the purpose of the diary, but it makes it simpler to fill in, easier to consult and less exposed to loss. For a broader comparison, read our article on construction site management with or without software.

Another benefit of digital is the ability to link the diary to the site's other documents: staff attendance, equipment used, company documents. Information recorded once becomes available wherever it is needed, without having to copy it out again.

The site diary in IntraThor Construction

In IntraThor Construction, management software for construction companies, the site diary is integrated with the rest of the site information:

• Shared diary, available to authorised people.
• Daily site reports from the teams, which feed into the diary.
• Photos attached to each day, to document the state of the works.
• Progress of work items linked to what has been recorded.

This way the diary stops being a stand-alone document and becomes part of site management, together with documents, staff and suppliers. Also discover our construction software and how to manage progress valuations in construction.

F.A.Q. - Frequently asked questions

General information only, not legal advice: always check the current legislation.