Using the USGS database to study parameter uncertainty when assessing pier scour using the HEC-18 framework

Gianna Gavriel*, Maria Pregnolato, Paul J Vardanega

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

Bridges are important lifelines linking communities and their collapse due to flood events can result in severe social and economic impacts for communities. Estimation of maximum bridge scour depth is important for determining effective mitigation and adaptation procedures. HEC-18 is a well-established methodology to calculate scour depth. However, it is
also often reported to yield conservative estimates of maximum scour depth in various publications. This paper presents a simple sensitivity study to assess the key inputs that affect the computation of maximum scour depth using the HEC-18 framework. The parameter ranges used in this analysis are sourced from an openly accessible database from the United States
Geological Survey (USGS). In this study, HEC-18 is assessed against field measurements. The primary aim of this research is to study the impact of each key input parameter on HEC-18 estimates of maximum scour depth estimates.
Original languageEnglish
Title of host publicationLife-Cycle of Structures and Infrastructure Systems
Subtitle of host publicationProceedings of the Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023), 2-6 July 2023, Politecnico Di Milano, Milan, Italy
EditorsFabio Biondini, Dan M. Frangopol
Place of PublicationAbingdon, Oxon
PublisherCRC Press/Balkema, Taylor & Francis Group
Pages3230-3237
Number of pages8
ISBN (Electronic)9781003323020
DOIs
Publication statusPublished - 28 Jun 2023
EventThe Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023) - Milan, Italy
Duration: 2 Jul 20236 Jul 2023

Publication series

NameProceedings of the ... international symposium on life cycle civil engineering (IALCCE)
PublisherCRC Press
ISSN (Print)2161-3907
ISSN (Electronic)2641-2195

Conference

ConferenceThe Eighth International Symposium on Life-Cycle Civil Engineering (IALCCE 2023)
Country/TerritoryItaly
CityMilan
Period2/07/236/07/23

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