3. Severn barrage: civil engineering aspects

This paper describes the civil engineering designs and construction methods for a proposed tidal barrage in the Severn Estuary. The preferred construction method for the barrage is based on the use of reinforced concrete caissons, and designs for turbine, sluice, and plain caissons are described. The arrangements for embankments, ship locks, and barrage roads are also described. The designs were prepared as part of the Severn Barrage Development Project.

• INTRODUCTION

• ENVIRONMENTAL AND OPERATING CONDITIONS

• TURBINE CAISSONS

• SLUICE CAISSONS AND GATES

• PLAIN CAISSONS AND EMBANKMENTS

• ROADS

• LOCKS AND NAVIGATION

• BARRAGE CONSTRUCTION

• CONSTRUCTION SEQUENCE AND PROGRAMME

• CONSTRUCTION COST ESTIMATE