Stuart Foltz

• US Army Corps of Engineers

The function of a spillway gate system is to control the flow of water through an opening for purposes such as flow regulation, flood control, emergency water release during load rejection, and dewatering for maintenance operations, or to remediate or respond to structural deficiencies. A growing problem for dam owners is the aging of such structur...

Dams are essential infrastructures for water supply, flood control, energy production, and irrigation. A critical component for the safety of a dam is the spillway system which, by controlling releases, prevents overtopping of the dam. This in turn reduces impacts associated with excessive downstream flows and upstream water levels on infrastructur...

An improved steel sheet pile (SSP) inspection procedure is proposed in this paper, which couples the field inspection condition-index methodology previously developed by the U. S. Army Corps of Engineers with reliability assessments to quantify the life-cycle costs and environmental impacts associated with various maintenance and repair (M&R) scena...

The efficiency of Urban Search and Rescue operations depends on the supply of appropriate equipment and resources, and an efficient damage assessment facilitates deployment of these resources. This paper presents an Information Technology (IT) supported system for on-site data collection to communicate structural condition, track search and rescue...

The efficiency of Urban Search and Rescue operations depends on the supply of appropriate equipment and resources, and an efficient damage assessment facilitates deployment of these resources. This paper presents an Information Technology (IT) supported system for on-site data collection to communicate structural condition, track search and rescue...

Efficient request and deployment of critical resources for urban search and rescue operations is vital to emergency response. This paper presents a RFID (Radio Frequency Identification) supported system for on-site data collection to communicate structural condition, to track search and rescue status, and to request and allocate appropriate resourc...

The U.S. Army Corps of Engineers (USACE), Directorate of Civil Works is in the early stages of implementing infrastructure asset management principles to better manage its civil works infrastructure. This effort is being done, in part, in response to Executive Order 13327, which mandates a pragmatic and consistent approach to Federal agency managem...

The U.S. Army Corps of Engineers (USACE) has primary responsibility for maintaining and operating U.S. navigable waterways and Federal flood control dams. Dam safety is a critical priority, but assessment and prioritization of dam safety concerns is difficult. This report describes a condition assessment and prioritization methodology for structura...

The Corps of Engineers has established a condition index inspection system for many of the flood control and navigation structures that it manages. The condition index scores range from 0 to 100 and describe the current condition of infrastructure components, sub-systems and systems based on visual inspection results. This paper uses a spillways ga...

During disaster response and recovery operations, civil engineers can be assigned a multitude of tasks including triage of building search priorities, identification and evaluation of structural hazards, as well as the development of appropriate structural hazard mitigation techniques and monitoring of hazards, while coordinating and reporting this...

Central to a comprehensive asset management program is the ability to evaluate and know the condition and performance characteristics of all inventoried assets in the real property inventory (Federal Real Property Council [FRPC] Guidance, Section 4 Operations of Real Property Assets ). In the case of the U.S. Army Corps of Engineers (USACE) Civil W...

Two competing methods were introduced for analyzing the condition of a structural system. The results produced by both were very different. In the weighted average approach, the system condition index will always be somewhere between the condition of the best and worst component in the system. In the traditional reliability approach, the condition...

In an effort to improve maintenance techniques and practices for inland waterway and coastal structures, the U.S. Army Corps of Engineers (USACE) established the Repair, Evaluation, Maintenance, and Rehabilitation Research (REMR) program, which was funded from 1984 to 1998. Within the REMR program is a group of projects dedicated to the development...

Inland waterways maintained by the U.S. Army Corps of Engineers carry about 17% of the nation's intercity cargo, so service interruptions related to waterway infrastructure failure can cause substantial economic loss. Maintenance and repair (M&R) requirements for navigation structures compete for funding with every other national priority, however,...

All but very small disasters commonly lead to response at local, regional, state and federal levels. Coordination between these groups leads to many problems in communication, data sharing, and collaboration. Among other difficulties, they usually have separate command structures and different communication tools. Local fire and police often cannot...

With limited maintenance dedicated to aging dam spillway gate structures, there is an increased risk of gate inoperability and corresponding dam failure due to malfunction or inadequate design. This report summarizes research on methodologies to assist in quantifying risks related to dam gates and associated operating equipment, and how those risks...

The purpose of the Civil Works O&M Tools research and development program was to develop new decision support tools and improve old ones that could remove a degree of subjectivity from the business of developing and executing the O&M program. The products would help managers not so much by making decisions for them but by providing a structured bas...

As both reliability analyses and systematic inspection programs for the world’s infrastructure gain increased usage and prominence, it becomes more important to use the information from routine visual inspections to update lifetime reliability assessments and resulting life-cycle inspection/repair strategies. The Army Corps of Engineers currently u...

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Risk analysis is a necessary component of project planning and maintenance. Among other facets, risk analysis includes evaluation of loads (demands) and responses (capacities), or the reliability of a structure. Reliability assessment is based on a logical format for analyzing the probability of unsatisfactory performance using probabilistic estima...

A Condition Index (CI) is a snapshot look at the physical condition of a structure or structure component. CIs for Civil Works infrastructure were developed at the direction of the Civil Works Directorate Headquarters, U.S. Army Corps of Engineers as part of the Operations Management Problem Area of the Repair, Evaluation, Maintenance, and Rehabili...

this report can be converted to SI (metric) units as follows: Multiply By To Obtain feet 0.3048 meters inches 0.0254 meters square fi 0.0929 square meters vii I

https://erdc-library.erdc.dren.mil/xmlui/handle/11681/4416 This technical report was printed in September 1998. It was distributed within the Corps for review and comments. During this review, CECW-E requested that publication of the document and any related training be withheld until they could complete a more thorough review. Written comments wer...

this report can be converted to SI (metric) units as follows: Multiply By To Obtain feet 0.3048 meters inches 0.0254 meters square ft 0.0929 square meters 1

For USACE civil works, the emphasis has been steadily shifting from construction of new facilities to maintenance and repair (M&R) of existing ones, so M&R has become an increasingly important part of the budget. In addition, USACE is one of many Federal agencies facing increasingly restrictive budgets and greater demands for budget justification....

The purpose of this report is to describe a proposed system for determining a condition index (Cl) that numerically rates the condition of the concrete in a gravity dam monolith, retaining wall, or spillway on a scale of 1 to 100 by evaluating each concrete distress objectively. The rating system described herein allows the CI to be determined by t...

Because no procedures exist to inspect and evaluate the condition of single-ply membrane roofing systems within the ROOFER program, the U.S. Army Construction Engineering Research Laboratories (USACERL) has developed this inspection and distress manual for these roofing systems. Included is the standardized information needed to conduct the visual...

This report describes facility layaway procedures for U.S. Army facilities, with an emphasis on Fort Dix, NJ. It focuses on decision criteria and the economics of facility layaway. Decision matrices for choosing cost- effective layaway strategies are presented. The concepts behind differing maintenance and repair (M and R) standards are addressed....

Experimental roofs of single-ply ethylene-propylene -diene monomer (EPDM) and sprayed-in-place polyurethane foam (PUF) were installed during 1979 and 1980 at Fort Benning, GA and Fort Lewis, WA. This research documents the long term results of a field test program to evaluate the effects of aging/ weathering on the EPDM and PUF materials and the re...

The U.S. Army Construction Engineering Research physical properties. The performance was generally Laboratories (USACERL) has recently completed a 10-satisfactory at Dugway and Fort Polk, whereas problems year field exposure study of the performance of polyvinyl related to membrane shattering and splitting occurred at chloride (PVC) roofing membran...

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