Halkyn Quarry extension: how the rock and tip would move, phase by phase

What it shows

Each step matches one drawing in the applicant's Method of Working Plans (drawing 24-8-3316, Parts 1 and 2): a starting position in January 2025, then Phases 1 to 11, followed by a simplified look at restoration.

The wording quoted for each phase is taken from the drawing. Volumes and figures have been left out, and the plans contain no timescales.

The coloured areas are traced from the drawings. The background map is simplified and is not to survey accuracy.

Where the tip goes

The written statements describe the tips as overburden mounds: heaps of soil and waste rock left from earlier quarrying.

"…remove the majority of these mounds and re-shape the remaining soils into screening mounds along the northern and north-western boundaries… the remaining soils from the overburden mounds will be put back into the void itself along the benches which have been worked, largely along the western side, and used to form ramps within the quarry void."

Environmental Statement Introductory Chapters (Rev B), paragraphs 2.5–2.6. The new screening mounds are not shown on the Method of Working plans, so they are not animated here.

Glossary

Plain-English definitions written for this guide, not taken from the application.

Tip (overburden mound)

A heap of soil and waste rock from earlier quarrying.

Extraction

Digging out limestone.

Bench / level

A step cut into the quarry wall.

Cast over

Pushing material over a quarry edge onto the benches below.

Haul road

The road used by quarry vehicles inside the site.

Crib wall

A retaining wall built from interlocking units.

Primary crusher

The first machine that breaks up blasted rock.