Risk inventory serviceability hydraulic structures in the Netherlands

Title: Risk inventory serviceability hydraulic structures in the Netherlands
Author(s): Dirk Jan Kiljan, Hans Janssen
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 961 - 967
Total Pages: 7
Nb references: 3
Language: English

Abstract: The water system in the Netherlands contains hundreds of hydraulic structures with several serviceability functions in water management and navigation: locks and weirs, sluices, bridges and storm surge barriers. Roughly 30% of them have been built before 1940. Therefore ageing of structures is a growing concern, especially in combination with climate change, new requirements and increasing loads by more and larger ship traffic. These aspects may lead to increase of costs for exploitation, maintenance and repair, and possibly to a decrease in residual lifetime of the hydraulic structures.
Rijkswaterstaat started an investigation to get insight in risks related to the serviceability performance levels of the hydraulic structures in the water system and in the residual lifetime.
Second objective is to derive standards for the serviceability performance levels. The project started in 2009 and will end in 2013.
The approach of the project is divided in two parts. First part consists of an assessment of the actual reliability and availability of the hydraulic structure as a whole, together with an estimate of residual lifetime and maintenance cost to reach a certain performance level. In the second part, network based performance levels for the individual hydraulic structures and appropriate measures will be developed to overcome the present and future differences with the required performance.
First activities in 2009 consisted of inspection and analyses of 7 hydraulic structures. This is considered a pilot to examine whether the methods are applicable and fit for purpose, and to get an impression of the output. In 2010 inspection and analysis of more hydraulic structures is planned. The results of 2009 and 2010 will be used to determine and prioritize the inspections for the remainder of the asset in 2011 till 2013, necessary to obtain full insight in the serviceability performance and the necessary measures and costs to reach the required performance level for the asset.
The outcome will also consist of experience with the application of inspection technologies, with the implementation of inspection in the assessment of reliability and availability and insight in residual lifetime of the whole asset.

Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00