Why a shared site diary matters
A site diary is a legal record. It documents what happened on site each day: weather, deliveries, labour on site, work completed, delays, accidents, and decisions made. When disputes arise months later, or insurance claims come through, you need this record. A diary that only one person fills in creates gaps and leaves you vulnerable.
When the whole team contributes, you capture detail from different perspectives. The plant operator knows when equipment broke down. The foreman knows which trades were on site and what they did. The safety officer flags hazards. One person cannot be everywhere at once, so a shared diary is more complete and more defensible.
- Provides evidence for disputes, insurance and audits
- Captures daily facts that matter later but seem routine now
- Reduces reliance on one person's memory or notes
Who needs to contribute and when
Site supervisors, foremen, safety officers and plant operators should all add entries. They see different aspects of the day. Agree upfront who is responsible for recording what. For example, the site supervisor might record overall progress and visitors, the safety officer records near-misses and hazards, and the foreman records labour and subcontractor activity.
Entries should go in at the end of each shift or at a set time each day, while details are fresh. Waiting until Friday to fill in the week is unreliable. A quick entry takes five minutes. Make it part of the daily routine, like a toolbox talk.
Where JobEng helps
A site diary your whole team can fill in from site. JobEng is an app for UK engineering and construction, on iPhone and Android with the same account on the web. Firms use it to hire engineers and run the business side of their projects.
What to record in each entry
Start with basics: date, time, weather conditions, temperature if relevant, and who was on site. Then record work completed, work in progress, deliveries received, equipment used or broken down, any delays and reasons, and any changes to the plan. Note visitors, inspections, and meetings.
Include safety observations: near-misses, hazards identified, corrective actions taken, and any accidents or incidents. Record decisions made on site and by whom. If something unusual happened or a problem was solved, write it down. The diary is not a narrative essay; short, factual entries are clearer than long descriptions.
- Date, time, weather, personnel on site
- Work completed and work in progress
- Deliveries, equipment issues, delays
- Safety matters, incidents, decisions made
Setting up a system that works
Choose a format everyone can access on site. A printed logbook works if all contributors are on site together and can write legibly. A shared document or spreadsheet accessed via mobile phone or tablet is better if your team is spread across the site or works different shifts. Whatever you choose, make sure it is accessible without needing to go back to the office.
Set clear rules: who can add entries, in what order, and what detail is required. Assign one person to review entries at the end of each week for completeness and legibility. If using a digital system, check that it works offline or with weak signal, since site connectivity is often poor. Store completed diaries safely; they are legal records and should be kept for several years.
- Choose a format that everyone can access on site
- Assign roles so each person knows what to record
- Review entries weekly for completeness
- Keep completed diaries securely
Common mistakes to avoid
Do not leave the diary with one person. If they are ill or off site, entries stop and gaps appear. Rotate responsibility or ensure at least two people can add entries each day. Do not wait for perfect information; record what you know and add detail later if needed. Vague entries are better than no entries.
Avoid writing opinions or blame. A diary is a factual record. Write 'concrete delivery delayed by two hours, traffic on approach road' not 'the supplier was useless'. Do not use abbreviations that will be unclear months later. Do not assume you will remember context; write enough detail so a stranger reading it later understands what happened.
Do not ignore near-misses or small incidents. They often reveal patterns and can prevent serious accidents. Do not treat the diary as a grumble book; keep it professional and factual.
Reviewing and using the diary
Read entries at the start of each week to spot trends: recurring delays, equipment problems, or safety patterns. Use the diary to inform toolbox talks and site meetings. If a problem appears three times in a month, it needs addressing. The diary should inform your site management, not just sit in a drawer.
When something goes wrong later, the diary is your evidence. A clear, complete record protects you. When things go right, the diary shows what worked, so you can repeat it on the next job.
How to start
- Download JobEng free from the App Store (iPhone) or Google Play (Android).
- Create a business account for your firm — firms can ask about a free month of the full platform.
- Open JobEng and start with: a site diary your whole team can fill in from site.
Download JobEng free
The whole platform for your firm, on your phone. On iPhone and Android, with the same account on the web.
Frequently asked questions
What if people forget to fill in the diary?
Make it part of the daily routine, like a toolbox talk or end-of-shift briefing. Assign one person to check entries at the end of each day and chase missing information while it is still fresh. If using a digital system, set a reminder notification. Start small: even a few entries a day is better than none.
How long should we keep site diaries?
Keep them for at least six years. This covers the limitation period for most contractual and professional negligence claims. Check your contract and insurance requirements; some projects may need longer retention. Store them securely and label them clearly with the project name and dates.
Can we use a digital system instead of paper?
Yes, if it works reliably on site and everyone can access it. Digital systems are easier to search and share, and harder to lose. Make sure it works offline or with poor signal. Print a backup copy at the end of each week in case of device failure.
What should we do if an entry is wrong?
Do not cross it out or delete it. Draw a single line through the error, write the correction next to it, and initial and date the change. This keeps the record transparent and shows the original entry was not deliberately hidden. Digital systems should have an edit history.
JobEng is free to download on iPhone and Android. Firms can ask about a free month of the full platform.
Questions about the product or your data? See support and the privacy policy.