Tunnel Ceiling Replaced over traffic
The ceiling of the Holland Tunnel under the Hudson River, connecting New Jersey and Manhattan, was 59 years old and needed replacement, a big job because there are 3 miles of ceiling in...

Recyclying of Dust from Electric Arc Funances—An Experimental Evaluation
Each year the electric arc steelmaking industry generates approximately 650,000 tons of dusts containing valuable metallic resources such as iron, zinc, lead, and chromium. EAF dust is...

Sulfide Control in Omaha and Cedar Rapids
Omaha, Nebraska, and Cedar Rapids, Iowa have been involved in efforts to control sulfide in major interceptors, at the influent to the treatment plants, and within the treatment facilities....

Controlling Sulfide Corrosion in Large Diameter Gravity Sewers (abstract)
The County Sanitation Districts of Los Angeles County undertook a major evaluation of sewer system ranging in size from 1. 22 to 3. 65 meters in diameter that transports peak wastewater...

A New Methodology for Modelling Water Pipe Breaks
A new methodology for modelling breaks in large diameter cast-iron water pipes is proposed. The need to consider two separate stages of deterioration (early stages with fewer breaks and...

The Rise of the Tall Building
The development of the high-rise frame in the U.S. was the result of a collision of many factors. The destruction of Chicago in the great fire of 1871 was one major factor in the start...

Center Pivots: Iron Dinosaurs of Ogallala Aquifer
In mid-1983, USDA's Soil Conservation Service (SCS) staff in Colorado began a 5-year project aimed at reducing the amount of water the state extracts from the Ogallala aquifer....

Effect of Shallow Trench Construction on Cast Iron Pipelines
This paper summarizes the results of three-dimensional finite element analyses to evaluate the strains and displacements sustained by 4, 6, and 8-in. (100, 150, and 200 mm)-diameter cast...

Report of the Working Group on Iron and Steel Buildings

Research Needs for Extant Iron and Steel Buildings
A brief review of iron- and steel-making processes is background for the development of shapes and codes. Sources of information for the condition assessment of iron and steel buildings...

Romanesque Reused
When Union Station in St. Louis, Mo. was built in the 1890s it was the world's largest railroad station. Having been abandoned by the railroads in the 1970s, it was reopened...

Nonlinear Behavior of Ductile Iron Pipeline Joints
Experiments were performed on 4 in. (100 mm), 6 in. (150 mm), 8 in. (200 mm), and 10 in. (250 mm) pipelines with rubber gasket joints to determine their structural and stiffness characteristics...

Hydrogen Sulfide Removal Systems for Digester Gas

Phosphorus Removal Experiences at AWT Facilities

State-of-the-Art Report on Steel Embedments
The basic philosophy underlying the design of steel embedments may be summarized as follows: (1) If an attachment can be located such that a group of cast-in-place anchors can be used...

Slurry Pipeline Control Systems
The paper documents the La Perla-Hercules pipeline and its control system. This eight and fourteen-inch, 382-kilometer iron ore concentrate slurry pipeline was commissioned in June of...

Bending Mechanism for Rubber Gasketed Pipe Joints

Fracture Properties of a Pearlitic Nodular Iron

Retaining Walls: Competition or Anarchy?
Until the last 10 years, when a retaining wall was needed a cast-in-place concrete gravity or cantilever wall was used. Then along came Reinforced Earth, and this proprietary system began...

Expansion of Natchez-Adams County Port

 

 

 

 

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