A weir reading that's ten minutes late, a hairline crack left unphotographed for a month, or a spillway gate cycle test that never gets logged — on paper these look like small gaps. On a dam, they're the difference between catching a problem early and explaining to a regulator why nobody caught it at all. Sign up to run your Ofgem Part 12 inspection program — seepage readings, crack monitoring, spillway checks, and closure records — from one auditable system built for UK power station teams.
Every hydro dam in the UK carries a downstream risk that doesn't announce itself until it's already a problem. Seepage that changes colour, a crack that widens by a millimetre, a spillway gate that sticks halfway — these are the early signals a Part 12 inspection program exists to catch, and a gap in the record is treated the same way a gap in the physical structure would be.
Periodic Inspection vs Comprehensive Assessment
The two feed each other. A periodic inspection that flags a slow seepage trend is what triggers a closer look in the next comprehensive assessment, which is exactly why a broken chain of readings is worse than a single missed one — it's the trend that tells the real story, not any one data point.
What A Structured Inspection Program Tracks
Oxmaint schedules every seepage reading, crack check, and spillway test against your own Part 12 cycle, and keeps the finding-to-closure trail intact for the next inspector. Sign up for a free trial to run it on your own dam, or book a demo to see it set up for your station.
Why A Trend Beats A Single Reading
A seepage flow of 2 litres a minute means nothing on its own. Whether that's normal or alarming depends entirely on what the same weir read last month, and the month before that. The value of a Part 12 program isn't the individual inspection, it's the unbroken chain of readings that lets a small, gradual shift stand out against its own history. Spreadsheets and paper logs make that chain easy to break — a missed entry, a reading filed under the wrong date, a photo that never got attached to the right finding. A dam that's been read consistently for years tells you far more than one that's been read perfectly once.
Typical Inspection Triggers
Frequently Asked Questions
Oxmaint keeps seepage readings, crack monitoring, spillway checks, and every closed finding in one place, ready for the next audit without a scramble through old spreadsheets. Sign up for a free trial to run it on your own dam, or book a demo to see it configured for your station.
