Potential-Scour Assessments at 130 Bridges in Iowa
A total of 130 highway bridges in Iowa were assessed for potential scour using a potential-scour index developed by the U.S. Geological Survey for a bridge-scour study in western Tennessee....
Non-Federal Flood Control Works Inspection Program
This paper presents a general description of the Non-Federal FCW Inspection Program and results obtained from the evaluations already completed. A discussion of the GIS package for data...
Biological Serendipity from an Ocean Outfall Maintenance Inspection
A large deep-water ocean outfall discharging ?880 x 106 liters day (230 million gallons day of treated wastewater effluent was inspected with a one-man...
External Inspection of an Ocean Outfall
In October and December, 1994, an external inspection was performed on the County Sanitation Districts of Orange County's (Districts) ocean outfall. This presentation describes...
A California Handbook for Developing an Industrial/Commercial Storm Water Inspection Program
Runoff and non-storm water discharges to storm drains from industrial and commercial businesses can be major causes of storm water pollution in urban areas, but there are sources of this...
Monitoring Prestressed Structures
Developments in remote-monitoring technology provide new options for cost-effective management of prestressed and post-tensioned reinforcement systems. A case study shows how engineers...
No-Dig Gains Ground
The Miami-Dade Water and Sewer Department (MDWASD), the regional wastewater utility of Metropolitan Dade County, is currently undertaking one of the Country's largest Infiltration/Inflow...
Parking Lot Corrosion Cure
The $3 million structural repair and restoration of a large post-tensioned parking structure required engineers to replace 2,400 tendons while keeping the parking garage in service. After...
Bridge Repair on the Fast Track
For repair with tight deadlines, conventional approaches to inspection and repair might not be fast enough. Where the concept of design-build leaves off, the contractual solution of inspect-repair...
URSULA: Design of an Underwater Robot for Nuclear Reactor Vessel Inspection
This paper describes the development of an underwater robotic system that will be used to perform ultrasonic inspections of nuclear reactor vessel weldments. The development effort consists...
Application of Pen Computing to Construction Inspection
This paper discusses one customized inspection software package which runs on a pen computer. This program provides a format that assures a fast and accurate inspection process....
Nondestructive Inspection of Steel Bridge Members
Assessment of the conditions of an aging population of bridges in order to determine the proper maintenance or retrofit operation is a challenge of great importance to bridge engineers...
Causal Probabilistic Networks in Assessing the Vulnerability of Existing Buildings
A probabilistic assessment of the 'state of health' of the structure is pursued on the basis of pieces of evidence collected by inspection and by querying, in case, historical data bases....
Magnetic Flux Leakage for Bridge Inspection
For many years the Federal Highway Administration and before that the Bureau of Public Roads had focused its nondestructive evaluation program on development of better tools to inspect...
Inspections, Evaluations and Modifications for Corps of Engineers Dams
The Corps of Engineers owns and operates 580 dams in the United States. As these dams become older (199 are over 50 years old), dam safety and modifications play an increasing role in...
Embankment Dam Safety
Procedures for identification and evaluation of conditions which can lead to catastrophic dam failure through either piping or deep seated instability of the downstream surface are presented....
Michigan Dam Safety Inspection
This paper describes the new dam safety act which took affect in Michigan in 1990. This act provides for regular inspection of almost 900 dams in Michigan that meet the size and storage...
Collection System Inspection and Rehabilitation Program
The Metropolitan Water Reclamation District of Greater Chicago is a regional wastewater and water resources agency responsible for serving an area of about 875 square miles. Recently the...
Exploration of Ground Penetrating Radar for Railroad Tie Maintenance Scheduling
Assessment of railroad ties for replacement is currently performed by visual inspection. This paper describes a method of automated tie assessment using ground penetrating radar (GPR)...
Using Condition Indexes to Evaluate Local Railroad Track Networks
The U.S. Army Construction Engineering Laboratories (USACERL) have developed condition indexes for assessing track condition that apply to local railroads. Indexes were developed for the...
Return to search