Design and Implementation of Repairs to Corrugated Steel Plate Culverts

Abstract

The successful rehabilitation of three corrugated steel plate culverts consisting of 11.28-m-span horizontal ellipses is described. When constructed in 1970, the culverts were the longest-span horizontal ellipse culverts in the world. The original construction is described, with a summary of the discovery and site investigation. The nature of the structural distress and the identification of the cause is discussed. The design of an effective repair is described in addition to the requirements for construction monitoring. Measurements of culvert response are given for pipe excavation and subsequent reburial. Details of the rehabilitation process are provided with a discussion of the structural and backfill design. The total project cost is included.