Dams are fragile: The frenzy and legacy of modern infrastructures along the Klamath and Allegheny Rivers

This article discusses the socio-technical process of dam construction in the United States from the early 20th century to the present. It examines how marginal places have been the object of industrial modifications through the inventiveness and entrepreneurship of social groups and local individuals who, supported by federal measures, have...

A Fully Homomorphic Encryption Scheme for Real-Time Safe Control

Fully Homomorphic Encryption (FHE) has made it possible to perform addition and multiplication operations on encrypted data. Using FHE in control thus has the advantage that control effort for a plant can be calculated remotely without ever decrypting the exchanged information. FHE in its current form is however not practically applicable for...

Temporal evolution of backward erosion piping in small-scale experiments

Backward erosion piping (BEP) is a form of internal erosion which can lead to failure of levees and dams. Most research focused on the critical head difference at which piping failure occurs. Two aspects have received less attention, namely (1) the temporal evolution of piping and (2) the local hydraulic conditions in the pipe and at the pipe...

Hydropower development in the Republic of Georgia and implications for freshwater biodiversity conservation

The Caucasus region is a meeting point for culture and nature, lying at the nexus of Europe, the Middle East, Central Asia, and Africa, and identified as one of 36 global biodiversity hotspots. The Republic of Georgia, the center of the Caucasus biodiversity hotspot, encompasses a geographically diverse landscape inhabited by a remarkable,...

Ice actions for hydraulic structures of primary flood defense Afsluitdijk - “Applying ISO 19906 at home”

The Afsluitdijk is one of the Dutch Delta programme landmarks. Afsluitdijk is a 32 km long primary flood defense, separating lake IJsselmeer from the Wadden Sea and protecting large areas of the Netherlands against flooding. Over the period spanning 2018 - 2022 the levee will be upgraded by the consortium Levvel (BAM, Van Oord and Rebel). Ice...

Estimation of small reservoir storage capacities in a semi-arid environment: A case study in the Upper East Region of Ghana

In semi-arid regions at the margins of the Sahel, large numbers of small reservoirs capture surface runoff during the rainy season, making water available during the dry season. For the local population, small reservoirs are important water sources which help them cope with droughts. The lack of knowledge of the number of existing reservoirs,...

Compendium of Hydraulic Structures

These lecture notes are an attempt to compile various existing matierial on hydraulic structures into a kind of handbook that servers two purposes: (1) to acquint the participants of the Hydraulic Engineering courses with the English terminology in the field of hydraulic structures; (2) to present an overview of the field of hydraulic structures...