Designing sustainable landfill for Jeddah City, Saudi Arabia

 For the last 12 years the solid waste of Jeddah City has been placed in Wadi Nakhil, to the east of the city. This facility is now 80% full. No geotechnical site characterisation was undertaken prior to opening this municipal landfill site in 1982 and, being so close to the city, it now poses risks to the health of nearby residents as well as ecological dangers. The paper considers the requirements of a new site and discusses the most appropriate method of closing the existing site to ensure its long-term safety. Received: 28 August 1998 · Accepted: 30 August 1999