Ketton Quarry
Ketton Quarry is located between Rutland Water and the town of Stamford, it supplies limestone to the cement works near the town, as part of the quarry expansion plan a local road had to be deviated over a section of the quarry. As the existing quarry floor was approx. 26m below the level of the new road a bridge was required to span the deep quarry cutting. The road would be supported on embankments leading up to the bridge, but the bridge supports required vertical abutments near the exposed quarry face. Reinforced Earth Co. Ltd. (RECo) worked closely with the scheme designers (WYG) to develop a design for the bridge abutments which had to support high concentrated loads and resist the horizontal forces generated from the integral bridge deck. With a 33.5m bridge span this is one of the longest integral bridge structures supported on Reinforced Earth abutments in the country. Reinforced Earth are often asked to design abutments which fully support the bridge reactions without the need for costly column supports or thick RC abutments, the precast concrete facings of the structure are only 140mm thick so providing substantial cost, programme and environmental benefits.
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