Private company

Amalgamated Roadstone Corporation

British stone quarrying company based in London, founded in 1935¹

Amalgamated Roadstone Corporation (ARC) was a British stone quarrying company.² It ceased to exist in 1989.¹ Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1935Founded¹

Industryquarry¹
HeadquartersLondon¹

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Amalgamated Roadstone Corporation (ARC) was a British stone quarrying company.²

The story

Amalgamated Roadstone Corporation Ltd. was formed on 23 April 1935 to acquire six quarry companies in Britain. These were Betty and Tom Ltd, Carreg-y-Liam Quarries Ltd, National Road Materials Ltd, National Roadstone Ltd, Port Nant Quarries Ltd, and Roads Reconstruction (1934) Ltd.

In 1947 ARC acquired the majority of the shares of the British Quarrying Co Ltd (BQC) and its associated quarries. By 1958 the company owned 58 quarries.

The company was acquired by Hanson plc as part of its acquisition of Consolidated Gold Fields in 1989.

From Wikipedia’s article on Amalgamated Roadstone Corporation, shared under CC BY-SA 4.0.³

Products and brands

Locations of Quarries include:

Avon

Conygar Quarry, Clevedon (formally Roads Reconstruction (1934) Ltd.) - closed 1935

Grovesend Quarries, Tytherington (formally Roads Reconstruction (1934) Ltd.)

Sandford Quarry, Banwell (formally Roads Reconstruction (1934) Ltd.)

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Winford Quarry, Bristol (part of St. Kevern & Associated Quarried Ltd. subsidiary) - closed 1954

Cornwall

Penlee Quarries (formally Penlee Quarries Ltd.) - closed 1972

Rosenython Quarry, St. Keverne (formally West of England Road-Metal Co. Ltd.)

Stepper Point Quarry, Padstow (part of Cornish Road-Metal Ltd. subsidiary) - closed 1948

Porthallow & Porthoustock Quarries, St. Keverne (part of St. Kevern & Associated Quarried Ltd. subsidiary) - closed 1958

East Lothian

East Saltoun Quarry, Pencaitland (part of Amalgamated Lime Co. Ltd.)

Kent

Borough Green Works, Borough Green (formally British Quarring Co. Ltd.)

Somerset

Cranmore Depot (formally Roads Reconstruction (1934) Ltd.)

Emborough Quarry (formally Roads Reconstruction (1934) Ltd.) - closed 1965

New Frome Quarry (formally Roads Reconstruction (1934) Ltd.)

Vobster Quarry, Mells Road (formally Roads Reconstruction (1934) Ltd.) - closed 1966

Windsor Hill Quarry, Shepton Mallet (formally Roads Reconstruction (1934) Ltd.) - closed 1942

Worcestershire

Malvern Central Plant Workshops