[1] Snow avalanches are a threat in many populated mountainous regions, and deflecting dams are often built to divert them away from people, and infrastructure, into less harmful areas. When an avalanche is deflected by a dam or wedge, it often generates rapid changes in the flow thickness and velocity, which can be modeled as an oblique shock wave. This paper reviews classical oblique shock th...

Expansions in concrete dams may be caused by chemical or physical sources; however in certain occasions the evidences observed in the dam may not be attributed to a single cause. Mequinenza is an example of a concrete dam affected by expansions and high non-recoverable displacements that cannot be explained by the most frequent pathologies. This paper presents new hypotheses that could justify ...

In developing countries, large dam projects continue to be launched, primarily to secure a time-stable fresh-water supply and to generate hydropower. Meanwhile, calls for environmentally sustainable development put pressure on the dam-building industry to integrate ecological concerns in project planning and decision-making. Such integration requires environmental impact statements (EISs) that ...

The Burdekin River, Queensland, Australia drains a catchment area of ~130,000 km and contributes approximately 30% of the total sediment supplied (~ 3.8 t) to the Great Barrier Reef Lagoon from all Great Barrier Reef catchments. Much of this watershed (~115,000 km) drains into the Burdekin Falls Dam, the largest dam reservoir in Queensland (1,860 GL capacity; 224 km surface area; average depth ...

Cover Story: WMHS 602 Study Abroad, p. 1; Articles: Wastewater Irrigation; p. 5; Irrigation Practices; p. 6; Water-Energy-Food; p. 7; Illegal Tapping oil pipelines; p. 10; The Zapotillo Dam p. 11; Guanajuato Water Gap; p. 12; WHMS News: Recent graduates p. 14; Water in the News: Texas and National News; p. 14; Water for Fun: Crossword Puzzle; p. 15; Seminars schedule; p. 16; Students Organizati...

For over five years, Piute Dam in the Sevier River Basin of Utah has been equipped with an automatic gate to regulate releases into the downstream irrigation delivery system. This system has allowed the water commissioner to remotely set the desired flow target. The gate then automatically adjusts itself to provide the specified outflow. Although this has been very convenient, the determination...

the transfer and sedimentation in storage dams reduce the volume and damage the life of water reservoirs. due to the importance of water, its storage, and the cost time of constructing reservoirs, especially the scarcity of construncting sites for them, a lot of attentions should be given to the sedimentation of dam reservoirs. it requires the estimate of thew sedimentation and its management. ...

When I was elected governor in 1974, the West had a well-established water system. . . . Bureau [of Reclamation] officials and local irrigation districts selected reservoir sites and determined water availability. With members of the western congressional delegation, they obtained project authorization and funding. Governors supported proposals, appearing before congressional committees to requ...