Waves Generated by Recreational Traffic on the Upper Mississippi River System
Vessels of all sizes, from canoes to 15-barge tows, share the Upper Mississippi River System (UMRS), and every vessel interacts with the river by means of its displacement, propulsion,...
Aeration of a Submerged Jet-Flow Gate
Submerged operation of a jet-flow gate requires special treatment of the area downstream from the gate to avoid cavitation damage. The Bureau of Reclamation studied operation of a submerged...
Sediment Management with Submerged Vanes
Submerged vanes are small river training structures used for protection of streambanks against erosion and for amelioration of shoaling problems in navigation channels, at water intakes,...
Intake Wheel Gates Sealing Arrangements
This article discusses the sealing arrangements for intake wheel gates. Advantages and disadvantages if upstream and downstream sealing arrangements including thier effects on the performance...
Hydraulic Modeling of Flow Control Gates
Flow control gates are subject to complex hydrodymanic loadings, which may in many cases only be predicted through investigation on a physical hydraulic model. Scaling of gate models,...
Ring Gate as Turbine Emergency Shut-Down Device
The ring gate, intially used as a regulating device in the early stage of the design of hydraulic turbines, has grown to a reliable emergency shut-down device. Incorporated in the hydraulic...
Chute Design Using Concrete Building Blocks
Chutes constructed using concrete building blocks for erosion control on ephemeral streams have performed successfully. The chutes consist of a layer of blocks placed on a geotextile over...
Decoverly Lake?Functional Hydraulics & Aesthetics
The Decoverly Office Park is located in Rockville, MD. In 1984, engineering design on the seven office building park and pond was begun by the consulting engineers. From the beginning,...
Model Tests for Design of Vibration-Free Gates
Experimental results are presented of hydraulic forces acting on an underflow gate. Underflow gate is a socalled bluff body and a review of the mechanism of vibration caused by separation...
Spillway Gates for the El Naranjero Dam in Spain
In June 1986 Zwag Zschokke Wartmann Ltd received the order from Hidroelectrica Espanola S.A. in Madrid, Spain for the design and model testing of 5 radial gates on the 'El...
The Piedra del Aguila Project Large Radial Gates
Piedra del Aguila Hydroelectric Project is on the Limay River in Argentina. It has a capacity of 1424 MW with annual energy of 5500 GWH. This is an overflow dam, with intake gates, penstocks...
Diversion Closure Gate Schemes Used on B.C. Hydro Dams
Over the last 25 years B.C. Hydro has designed, built and has operated a number of large dams and continues to do so. This paper describes the design, erection and operating experiences...
Model Study of the Guadalupe River Bypass Culvert
A hydraulic model investigation of proposed channel improvements for the Guadalupe River Channel was conducted at the US Army Engineer Waterways Experiment Station in Vicksburg, Mississippi....
Experimental Research and Parameters Optimization of a Prototype OWC Wave Power Device
The paper presents the experimental research and parameters optimization of a prototype oscillating water column (OWC) wave power device being built in China by Guangzhou Institute of...
The Future of Steel Structures
The future availability of steel as a construction material is covered in this paper. The advances in the material, design fabrication and erection are discussed. The quality and quantity...
Large Stone Hot Mix Asphalt: State of the Art
Improved mix characteristics can be achieved by utilizing existing well-known technologies. Developments have included: more attention to voids in mineral aggregate criteria; adjusting...
Large Stone Mixes Make a Comeback
Large stone hot mix asphalt common at the turn of the century, is making a comeback in popularity in hot mix asphalt design. Large stone hot asphalt mixtures are being used as a way to...
Protection of Wood Designs in Adverse Environments
Engineers and architects are becoming increasingly aware of the risks of poor wood design practices and the benefits of using wood properly. This paper addresses biological factors that...
Sawn Lumber in Bridge Construction
This paper covers many aspects of design and construction that affect the specifications of the sawn wood components of a highway bridge. The relationships between the grading rules for...
Glued Laminated Timber for Bridge Construction
Structural glued laminated timber (glulam) was first introduced into the U.S. as a construction material in 1934. With the development of fully waterproof adhesives in the 1940's,...
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