Establishing Baselines For Pipeline Condition Master Planning
As our most of our cities approach complete built-out and much of our wastewater pipelines near the end of their design life, attention needs to be focused on retiring deteriorated first...

Uses and Limitations of Conventional Hydraulic Models in the Planning and Design of Storage Tunnels
The hydraulic design of storage tunnels requires special considerations relative to the design of conventional sewers. These issues include characterization and control of inflows, energy...

Freight Pipelines: Past, Present and Future
Freight pipelines are a set of time-honored methods to transport solids by underground pipelines, and the technology is improving. However, for intercity and interstate freight transport...

Quality Control Test for Prestressing Wires in Concrete Pressure Pipe
Prestressed concrete cylinder pipe (PCCP) was introduced in 1942 as a high pressure capacity conduit for water transmission. The principal element of the design and construction that imparts...

Multifaceted Trenchless Rehabilitation at the Middletown, Ohio WWTP
This paper describes the multiple trenchless technologies that were evaluated and the ones that were applied to the rehabilitation of a 78la diameter corrugated metal influent line and...

Non-Destructive Excavating Around Pipelines and Challenging Conditions
Hydrovac technology provides engineers and contractors with a unique solution for non-destructive excavating around sensitive buried lines. As a non-mechanical excavating method, it is...

Economic Restoration of Concrete Infrastructure at Jefferson Parish, Louisiana
United States municipalities are spending hundreds of millions of dollars annually tore place and repair corroded concrete infrastructures in wastewater systems. Structures such as wet...

Use of New Liner In Water Distribution System
For years there has been interest in rehabilitation of water distribution systems to provide quality drinking water and to reduce breaks in the water system service. Much work has been...

A Major Water Main Crossing of the Ohio River at Cincinnati
This presentation chronicles a major water main crossing of the Ohio River at Cincinnati. The project is of interest because it provides for the interstate sale of drinking water and technical...

Calibration of Water-Velocity Meters
The U.S. Geological Survey (USGS), as part of its responsibility to appraise the quantity of water resources in the United States, maintains facilities for the calibration of water-velocity...

Unlocking the Mystery of Cathodic Protection for Water Systems
This paper explores corrosion and its prevention through the use of cathodic protection. It defines the principles of cathodic protection and explains in a simplified way how cathodic...

Evaluating the Liquefaction Potential of Coal Waste Impoundments

Application of Artificial Neural Networks for Ungauged Catchments Flood Prediction
The prediction of floods with acceptable accuracy is the most important step in designing flood control structures and operating flood damage mitigation projects. It is more difficult...

A GIS Model for Assessing the Impact of Increased Channel Discharges on Hydraulic Geometry
A GIS model is being developed that can be used to assess the impact of increased channel discharges on the hydraulic geometry of streams in the Powder River (structural) Basin in northeast...

Impact of Scaling Rule on Simulating the Transport of DNAPLs
Due to the pollutants from lots of industry sewage and organic solvents, they arelow solubility in water and hard to decompose in nature, didn.t treated adequately, itwill cause the ground...

International Boundary and Water Commission, United States and Mexico, United States Section
(Abstract Only) The International Boundary and Water Commission, United States and Mexico, is responsible for applying the boundary and water treaties between the United States and Mexico....

Preliminary Assessment of Bacteria Abundance in Rivers of the Pantanal Wetlands -- Brazil
Heterothrophic bacteria play an important role in the carbon flux of aquatic environments, specially in flooded areas, where they are considered to be a source of organic matter. They...

Water Yield Responses to High and Low Spatial Resolution Climate Change Scenarios in the Missouri River Basin
Water yield responses to two climate change scenarios of different spatial scales were compared. Responses were determined by applying the Soil and Water Assessment Tool (SWAT) hydrologic...

A Natural Approach
Before the Comprehensive Everglades Restoration Plan began, the Florida legislature established the Everglades Construction Project (ECP), a $708-million, 10-year program now being implemented...

Exploring All Options
To relieve environmental stress around the Tampa Bay area's existing groundwater wells, Tampa Bay Water—the regional water supplier—is implementing a Master Water Plan that...

 

 

 

 

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