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...
Rebuilding America's Infrastructure
During the years immediately following World War II, the United States built the greatest infrastructure in the modern world. As we move into the 21st centruy, however, we find that this...
Seepage Stoppers
After 65 years of continuous operation without any major rehabilitation, the Detroit-Windsor tunnel had sprung a few leaks. Engineers used elasticized grout to stop the seepage, a material...
Comparison of Bridge Deterioration Rates
This paper presents the results of a study of rates of deterioration of steel and prestressed concrete bridge superstructures. The results indicate that age is the primary determinant...
Integrated Research for Civil Infrastructure Systems: A Future Challenge
The paper presents a research program developed at NSF for the improvement and renewal of the nation's civil infrastructure systems. The proposed program is integrated, multi-disciplinary,...
Risk-Based Decision Making in Water Resources VI
This proceedings,
Durability of Concrete Bridges in Virginia
This paper discusses four major types of deterioration found in concrete bridges: corrosion of the reinforcement, alkali-aggregate reactivity, freeze-thaw deterioration, and attack by...
Construction and Maintenance Decisions for Multi-Unit Deteriorating Facilities
Facilities that deteriorate over time and use can require maintenance or replacement. Selecting among replacement and maintenance alternatives for large systems of deteriorating facilities...
Highway Speed Radar for Pavement and Bridge Deck Evaluation
Radar has been developed as an economical alternative evaluating pavement layer properties and estimating quantities of deterioration in bridge decks. These highway applications are based...
Promoting Management Systems Within Organizations
The major effort during the years in which pavement management emerged as an accepted practice was making refinements to the technical models and techniques in the systems. For example,...
Deterioration Models for Highway Bridges
Infrastructure management, especially in case of highway bridges, need a realistic and effective deterioration model in order to provide information on the present and future condition...
The Finnish Bridge Management System
A computer-based Bridge Management system, BMS, was designed in Finland by the Finish National Road Administration (FinnRA) to assist in high level bridge policy, long-term planning and...
PCCP Inspection and Remediation Methods
This paper presents detailed investigative procedures and methodology used to locate corroded Prestressed Concrete Cylinder Pipes (PCCP). It examines data collection by electronic devices,...
Condition Data Reduction for Pavement Management
A methodology is proposed for the identification of uniformly behaving deterioration regions of infrastructure facilities. Such `homogeneous' regions constitute the basic units that should...
U.S. Experience With Armor-Stone Quality and Performance
In the past 30 years problems with deterioration and cracking of armor stone in the United States have been concentrated in northern regions, particularly around the Great Lakes. The explanation...
Problems With Armor-Stone Quality on Lakes Michigan, Huron, and Erie
The instances of deterioration of armor stone at coastal structures on the Great Lakes result from numerous distinct causes, both intrinsic and extrinsic. However, the proof of specific...
Principles of Holistic Medicine Applied to Infrastructure Maintenance: A Test Case
A humorous consideration of the question of whether holistic medicine�that is, the treatment of the entire physical and emotional configuration of the patient instead of the solely medical...
Learning to Love NDT
Sometimes overblown claims and the practical limitations of early nondestructive tests for concrete have left many civil engineers leery of NDT methods. While some are aware that NDT has...
Modal Analysis of Vibration Response for Condition Monitoring of Structures
The response of a structure to load is evidence of what the structure is; of the materials, members, connections and form of the structure. Response is evidence as well of the condition...
Water Main Rehabilitation Needs for the 1990's
Distribution systems represent the major portion of water utilities capital assets. There are growing concerns about water quality deterioration within distribution systems, and hydraulic...
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