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Design and Maintenance Factors Affecting Application Uniformity of Low Pressure Center-Pivot Irrigation Systems
Uniformity tests were conducted on 30 center-pivot sprinkler systems installed with one of six different low pressure nozzle types or high pressure impact sprinklers. Well designed and...

Progress Report ARS/SCS Runoff Curve Number Work Group
The Soil Conservation Service (SCS) Runoff Curve Number (RCN) procedure works well as a single event model to estimate design storm runoff volumes from a small agricultural watershed....

Simulation of Runoff and Infiltration of Disturbed Land
Disturbances of land due to human and natural causes change the porosity and hydraulic conductivity of the soil. A simulation model of conjunctive surface-subsurface flows can be used...

Case Studies of Semi-Closed Pipeline Systems for Flexible Deliveries
The semi-closed pipeline system using the best aspects of the open and the closed pipeline systems, has many applications. It is the best adapted system for use with the variable flow...

Stochastic Simulation and Optimization of Irrigation Canal Network Flows
This paper investigates the effects of parametric and objective uncertainty on simulation and optimal hydraulic design of irrigation canal networks. A model of spatially-varied flow in...

Darcy-Weisbach Roughness Coefficients for Selected Residue Materials
A laboratory study is conducted to measure Darcy-Weisbach roughness coefficients for corn, cotton, peanut, pine needles, sorghum, soybeans, sunflower, and wheat residue. Varying rates...

Calculation of Runoff from Rainfall Using NURP Data
Peak runoff flows and flood hydrographs are important elements in the design of drainage and flood-protection structures. The validity of methods for predicting peak flow from rainfall...

Water's New World
Potential applications of computer automation in the water industry have become increasingly apparent in the last several years. A growing number of water agencies are considering purchasing...

Pile Driving: Can it Cause Slope Movement?
The potential for slope movement from pile driving is examined in this paper. Published information is reviewed to identify the primary causes of movement, which are 1) displacement of...

Earthquake Damage Repair and Retrofit of the Seventh St. Terminal Port of Oakland
The October 17, 1989 earthquake resulted in the collapse of the two-level Cypress St. Freeway in Oakland. Television and newspaper coverage revealed the tragic loss of life and property...

A Computational Berthing Model for the Design of Fender Systems
The IRF numerical model has not been widely applied to the design of fender systems although the method has been extensively confirmed by hydraulic model tests and partially verified by...

Model Tests for Expansion of Anaheim Bay Naval Harbor
Modifications to the Anaheim Bay, California, Harbor complex have been proposed to enable larger ships to access the existing wharf for direct loading of ordnance. In addition, new deepwater...

Draft Chapter 2?Planning and Design Guidelines for Small Craft Harbors?Entrance Design and Breakwaters
The paper will present a very preliminary draft of the second chapter of an ASCE manual that is currently being developed. The new manual is entitled Planning and Design Guidelines for...

Two-Dimensional Hydraulic Analysis of the Owensboro Bridge and Approaches
The Kentucky Transportation Cabinet, Department of Highways, is working with the Indiana Department of Transportation and the Federal Highway Administration to plan, design, and construct...

Highway Construction and a Trout Stream Relocation
In 1970, a ten-mile section of Traffic Route 15 in the northern portion of Lycoming County extending into Tioga County was under design as a two-lane limited access highway on four lane...

A Storm Water Utility Case Study, Salt Lake City, Utah
In response to financial pressure on the City's general fund and the EPA's storm water regulations, Salt Lake City went through the process of developing and implementing a storm water...

Analytical Hydraulic Modeling of Road Culverts
This paper summarizes the development of a comprehensive analytical methodology and a computer model capable of simulating a wide range of flow phenomena in road culverts. The new flow...

Hillsboro Basin Surface Water Management Model
This study presents the results of the hydrologic and hydraulic analysis of the 103-square mile Hillsboro Basin located in South Florida. The purposes of the project were to develop a...

BRASS Modeling of Lo?za Reservoir, Puerto Rico, for Sediment Management Operations
Loiza reservoir, the principal water supply for metropolitan San Juan, delivers 3.5 m³/s (80 mgd) to the Sergio Cuevas filter plant. Sedimentation...

A TVD MacCormack Method for Open Water Hydraulics and Transport

 

 

 

 

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