Opportunities to Improve Reliability and Reduce Operating and Maintenance Costs

Abstract

Movable bridges present a unique opportunity and challenge for their owners. By utilizing an engineered maintenance approach, clients can extend the useful life of these costly structures while improving reliability and reducing operating costs. This paper will discuss a predictive maintenance (asset management) approach which has resulted in positive results. The current NBIS inspection program provides a knowledge base which can be leveraged into routine maintenance actions or a predictive approach. By investigating and resolving the reason for found deficiencies, the maintenance staff is more effectively utilized and the structure's life is extended. This approach is particularly valuable for the mechanical and electrical systems on movable bridges. These M&E systems need to be constantly maintained and adjusted. The authors have identified simple approaches which can assist the maintenance staff into more effective results. The paper will discuss how to build a predictive maintenance program using NBIS inspection data, and implementing a routine minor repair program. The authors will also present simple tips for bridge owners to immediately reduce operating costs. The financial payback for the program is also discussed.