Testing for Salt Damage
Salts used to melt snow can contribute to deterioration of concrete structures. Various tests were used to determine the extent of damage in two structures in Rochester, N.Y. One is an...

Throgs Neck Bridge: Why Did Its Deck Deteriorate?
Rapid deterioration of the concrete roadway decks of the Throgs Neck Bridge approach viaducts was found to be due to secondary tensile and fatigue stresses brought on by deflection of...

Inspecting Town Bridges in Connecticut
A federally financed inventory and inspection program for town bridges was carried out in Connecticut. This article describes how the authors' firm inspected 343 bridges of...

L.A.'s New Maintenance Management System: Key to Survival in an Era of Tight Budgets
Even in the wake of budget-cutting Proposition 13, the Los Angeles County Flood Control District was able to cope with their maintenance needs. Their secret was a major overhaul in their...

Will the World Face Up to Its Ever-Worsening Environmental Problems�
This article is based on interview with Gerald Barney, a consultant to the President's Council on Environmental Quality and other staff members of that organization. Among...

Top Highway Problems: Finance and Maintenance
The nation's highway departments say their number one problem is inadequate funds. Congress and the Federal Highway Administration are worried that, due to inadequate highway...

Single Additive for Recycling Asphalt Pavements
A design concept for recycling deteriorated asphalt pavements using a single reclaiming agent has been developed. The article established guidelines to help engineers determine the physical...

Ecology and the Past
Archaeologists and paleontologists have gathered an overpowering amount of evidence to show that modern methods of construction, both in the field of highways and in that of architectural...

 

 

 

 

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