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Research Needs in Hydraulic Engineering
The information presented herein has barely dented the surface of the needs for hydraulic research, and of the methods required to obtain funding for that research. The responses and reports...

Designing Self-Cleaning Wet Wells for Wastewater Pumping
Guidelines for the design of self-cleaning wet wells for variable speed pumps are given. The progress of research on the design of wet wells for constant speed pumps, including submersible...

Disaster Reduction in Dam and Reservoir Design
Disaster reduction for small- and medium-sized reservoir projects is considered for two specific types of dam failure: 1) during extremely high floods, and 2) when severe reservoir silting...

Hydraulic Performance of Culvert End Sections Designed for Collision Safety
A type of end section for pipe culverts that was designed for collision safety has some favorable hydraulic characteristics. These safety end sections are long and narrow with large steel...

Equations to Predict Critical Submergence at Horizontal Hydraulic Intakes
The formation of free surface vortices at hydraulic intakes can disrupt operation and damage machinery. It is also a serious safety concern. Theoretical investigations and laboratory tests...

Hydraulic Analysis of the McCook Outlet Manifold
A 1:40-scale model of the proposed McCook Outlet Manifold was tested at the U.S. Army Engineer Waterways Experiment Station (WES). Subsequently, flow conditions in the manifold were calculated...

Total Sediment Loads of Tropical Rivers
Unmeasured and total sediment discharges were computed for 107 sets of data from the Amazon and Orinoco Rivers and their major tributaries. Unmeasured loads were generally small except...

Development of the Lake Okeechobee Watershed Phosphorus Transport Model
The Lake Okeechobee watershed phosphorus model was developed to route flows and phosphorus loadings associated with point and nonpoint sources through a watershed transport system, and...

Environmental Control of Wetland Plant Communities
We have determined hydrologic regimes at a variety of sites while conducting studies to identify factors controlling wetland plant community composition and distribution. We have had relatively...

Development of San Gorgonio Pass Groundwater Flow Model I. Model Calibration
A groundwater flow model is being developed for use in management of a planned groundwater storage and recovery program for the Beaumont Storage Unit of the San Gorgonio Pass groundwater...

New Austrian Dam Side-Channel Spillway
The Loma Prieta earthquake of 17 October 1989 damaged the chute spillway at the Austrian Dam near San Jose, California. The replacement spillway, with a higher design discharge of 11,500...

Bartlett Dam Fuseplug Auxiliary Spillway
Bartlett Dam is located approximately 77 km northeast of Phoenix, Arizona on the Verde River. The Bureau of Reclamation (Reclamation) has determined that the structure is not capable of...

Updating Chapter II?Sediment Transportation Mechanics
Chapter II, the most comprehensive chapter of the Sedimentation Engineering Manual, has aged. The manual prepared by the Task Committee for the Manual on Sedimentation was published by...

Variability of Hydraulic Response of Constructed Wetlands
Dye tracer studies using Rhodamine WT have been performed on two field scale subsurface flow wetland units for further improvement of secondary treated municipal effluent at Byron Bay...

Application of Four Point Model to the Sacramento-San Joaquin Delta
Four Point (Delong et al. 1993) is a finite-difference, one-dimensional, unsteady, open channel, hydrodynamic model. The Modeling Support Branch of the Division of Planning, California...

Quality Control in Evaluating Scour at Bridges
Quality control procedures currently in use for conducting statewide bridge scour screening and evaluation studies are described. The procedures address bridge scour screening and calculation...

Reclamation's Review of Operation and Maintenance Program
The U.S. Bureau of Reclamation (Reclamation) is responsible for protecting the Federal investment in over 300 water storage and conveyance facilities in the 17 Western States. Reclamation's...

Scour Analysis for Bridges over Missouri and Mississippi Rivers
Engineering services are being provided for three bridge crossings, two over the Missouri River and the other over the Mississippi River. Scour consideration for the bridged waterways...

Tidal Propagation in a Distorted Model
A largely analytical study of tidal flow in the Sacramento/San Joaquin delta system provides the basis of an investigation of physical model distortion on tidal circulation in a complicated...

Yolo Bypass Wetlands?Impact Investigation
Approximately 20 square kilometers of wetland facilities are proposed to be installed within the Yolo Bypass of the Sacramento River Flood Control Project. A hydraulic impact investigation...

 

 

 

 

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